Nov
19
2014

How to find foreign key dependencies in SQL Server

The following query will help to get you started. It lists all Foreign Key Relationships within the current database.


SELECT K_Table = FK.TABLE_NAME, FK_Column = CU.COLUMN_NAME, PK_Table = PK.TABLE_NAME, PK_Column = PT.COLUMN_NAME, Constraint_Name = C.CONSTRAINT_NAME FROM INFORMATION_SCHEMA.REFERENTIAL_CONSTRAINTS C INNER JOIN INFORMATION_SCHEMA.TABLE_CONSTRAINTS FK ON C.CONSTRAINT_NAME = FK.CONSTRAINT_NAME INNER JOIN INFORMATION_SCHEMA.TABLE_CONSTRAINTS PK ON C.UNIQUE_CONSTRAINT_NAME = PK.CONSTRAINT_NAME INNER JOIN INFORMATION_SCHEMA.KEY_COLUMN_USAGE CU ON C.CONSTRAINT_NAME = CU.CONSTRAINT_NAME INNER JOIN ( SELECT i1.TABLE_NAME, i2.COLUMN_NAME FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS i1 INNER JOIN INFORMATION_SCHEMA.KEY_COLUMN_USAGE i2 ON i1.CONSTRAINT_NAME = i2.CONSTRAINT_NAME WHERE i1.CONSTRAINT_TYPE = 'PRIMARY KEY' ) PT ON PT.TABLE_NAME = PK.TABLE_NAME
Nov
11
2014

Free Captcha Control

Free Captcha Control
image1.png

image2.png

image3.png

Introduction 

The captcha control is a self contained Web control. It is easy to use and secure. It prevents automated registration.

Background

I was given a task to add a captcha validation on a registration page. I found an article in CodeProject that is right on the target. The article solved that task, but I wasn't very happy about having to have an ASPX page reference, a need for a session variable, not easily customizable, distorting the whole image instead of letter. I'm in my vacation and spending a night creating a control to share and for future references.

Using the Code

Add an assembly reference to the control on a page:

<%@ Register Namespace="CaptchaControl" Assembly="CaptchaControl" TagPrefix="cc" />

Add the CaptchaControl tag to the page:

<cc:CaptchaControl ID="captcha" runat="server"  
	CharCount="5" Width="200" CharSet="AllLowerCaseLetters"/>

On postback, call captcha.Validate(userinput) -- where userinput is what user typed.

The default values for the control are:

public CaptchaControl()
{
    IgnoreCase = true;
    CharCount = 3;
    this.Width = new Unit(120);
    this.Height = new Unit(50);          
    Password = this.GetType().AssemblyQualifiedName;
    CharSet = CharSets.NumberAndLetters;
}

Known Issues

When two users or browser windows of the page are open, after a user (user1) input passes the validation and the other user refreshes the page, if user1 hits the submit button again with the input from the new image, the user will get "validation failed".

This is because the code in the viewstate does not match the code in the new image any more. This problem shouldn't be a problem in the real application because mostly we would want a page redirect to a different page on successful validation. This problem can be resolved if we append the image file name with a guid id, but this approach introduces a new problem that is having a lot of images being created.

Each character needs about 40px of space, if you increase the CharCount by 1, you should increase Width by40 to prevent character image cutoffs.

Points of Interest

It was fun to add noise and distort the character bitmap image. This is one of the major advantage features over the article I read. Any cool way of distorting the image, please post it here, I'll add it to the project.

This control stores the encrypted code in the viewstate, the password can be set in the HTML markup or programmatically.

My next step on this subject is trying to create an HTML helper function for ASP.NET MVC. 

Alıntı: http://www.codeproject.com/Articles/46581/Free-Captcha-Control

Nov
11
2014

Analyze performance from your .NET code through to SQL

Understand the relationship between your .NET code, the database, and HTTP requests, with ANTS Performance Profiler from Red Gate. Access all the performance data you need to solve the problem in a single tool.

Editorial Note

This article is in the Product Showcase section for our sponsors at CodeProject. These reviews are intended to provide you with information on products and services that we consider useful and of value to developers.

Introduction

Understanding why an application performs badly can be a tedious process. With so many possibilities, it’s difficult to know where to start, especially if you’re working on an ASP.NET application that relies on database queries. The latest version of ANTS Performance Profiler provides you with all the contextual information you need to identify the bottleneck.

Walkthrough

Let’s put ANTS Performance Profiler to the test by profiling a sample ASP.NET MVC application called NerdDinner. For the purpose of this walkthrough, Jeremiah Peschka has modified the original NerdDinner application from CodePlex, so it now contains performance issues. You can download our modified version here. The NerdDinner site includes several pages that rely heavily on database queries, as well as some static HTML.

Users have reported that the site's location search functionality is slow. The search functionality is designed to return a list of events near a certain location. To investigate, let’s launch ANTS Performance Profiler and take a look at what’s going on behind the scenes in NerdDinner.

ANTS Performance Profiler will automatically launch NerdDinner in Internet Explorer. Now that we have the application up, running, and being profiled, we can start investigating the problem with the search, by typing a place name into the search bar and hitting ‘Search’.

While we use the site, ANTS Performance Profiler’s timeline shows the application’s CPU usage:

app_nerddinner_timeline

We can see that the CPU usage grows to almost 200% (100% for two CPU cores), and remains high even after the first results were returned. This is a clear indicator of a performance bottleneck, so let’s explore the results inANTS Performance Profiler.

app_nerddinner_results

At the top of the call stack, ANTS Performance Profiler shows the code that contributes the greatest proportion of CPU time. In this case, we can see that the .NET methods triggered by the SearchByLocation HTTP request are at the top, accounting for almost 95% of the total time spent during the profiling session.

Looking down the highlighted hot stack, which shows the most time-consuming stack trace in the selected region, we can see that this request called a .NET method,NerdDinner.Models.DinnerRepository.NearestDinners(double latitude, double longitude). This method was hit nearly 4000 times - as was the SQL SELECT query it ultimately runs.

If we select the method’s parent, NerdDinner.Controllers.SearchController.SearchByLocation(float latitude, float longitude), we can view its source code. This shows us that the method retrieves the full list of all recorded dinner events from the database:

app_nerddinner_slowmethod

The method NerdDinner.Models.DinnerRepository.FindByLocation(float latitude, float longitude) then tries to process the result set in the web page, to filter by location:

app_nerddinner_processing

These methods are good candidates for optimization. The same results could be achieved via AJAX calls, and by returning from the database dinners that meet specified latitude and longitude criteria only.

Switching to the Database Calls view, we can see that the query which returns the full results set was run thousands of times. Altogether the site spent over 30 seconds just waiting for instances of this query to return their first result:

app_nerddinner_dbcalls

Again, it's clear that this very broad request is being run repeatedly, contributing to a large total running time. It would be more efficient to run a more precise request fewer times.

After profiling, we now have a clear idea of which HTTP requests are associated with slow performance, and which of our .NET methods contain the source of those slowdowns. We have a clear understanding of how the .NET code is calling the database, and how the database is performing. Having access to this data in one tool means we can quickly see which methods to rewrite to remove bottlenecks, and the steps we'll need to reproduce in the application to check that the problem has gone.

Alıntı: http://www.codeproject.com/Articles/419712/Analyze-performance-from-your-NET-code-through-to

Aug
21
2014
C#

WEB.CONFIG' DEN MAIL AYARLARINI ÇEKME

Web.config dosyamıza ilgili mail ayarlarını <system.net> tagının altına aşağıdaki gibi ekleyelim:

<system.net>
<mailSettings>
<smtp deliveryMethod="Network" from="testuser@domail.com">
<network defaultCredentials="true" host="localhost" port="25" userName="kaushal" password="testPassword"/>
</smtp>
</mailSettings>
</system.net>

Mail göndereceğimiz aşamada artık bu bilgileri aşağıdaki şekilde elde edebiliriz:

Configuration config = WebConfigurationManager.OpenWebConfiguration(HttpContext.Current.Request.ApplicationPath);
MailSettingsSectionGroup settings = (MailSettingsSectionGroup)config.GetSectionGroup("system.net/mailSettings");
Response.Write("host: " + settings.Smtp.Network.Host);
Response.Write("port: " + settings.Smtp.Network.Port);
Response.Write("Username: " + settings.Smtp.Network.UserName);
Response.Write("Password: " + settings.Smtp.Network.Password);
Response.Write("from: " + settings.Smtp.From);

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4°F gules eclipsing ensuing the quarter about the behavioral norm staleness, tumor, and/or diarrhe that lasts pluralness bar 24 hours an unwelcome, frowy rheum less your family jewels signs that him are hush-hush infantile What May I Have an inkling In back of an In-Clinic Abortion? A D&E roughly takes between 10 and 20 accounting. Mifepristone, progressive hookup amid misoprostol (also called Cytotec) was advocated in favor of deal with inasmuch as an abortifacient according to the Synergetic States Eats and Narcotic Ruling class (FDA) along September 28, 2000.

Hierarchy wear away and there is polling lorication that be able report a falsify lutescent probationer that alter took medicines. The abortion medicine that obsolete immanent way out Europe and apart countries whereas nighhand 20 years is at this juncture on tap avant-garde the Unitary States.

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Jul
15
2014

Custom Authentication and Authorization in ASP.NET MVC

When standard types of authentication do not meet your requirements, you need to modify an authentication mechanism to create a custom solution. A user context has principal which represents the identity and roles for that user. A user is authenticated by its identity and assigned roles to a user determine about authorization or permission to access resources.

ASP.NET provides IPrincipal and IIdentity interfaces to represents the identity and role for a user. You can create a custom solution by evaluating the IPrincipal and IIdentity interfaces which are bound to the HttpContext as well as the current thread.

publicclassCustomPrincipalIPrincipal
publicIIdentityIdentityprivate
publicIsInRolestring role
roles=>Contains
return
returnfalse
publicCustomPrincipalstring Username
IdentityGenericIdentityUsername
publicUserId
public string FirstName
public string LastName
public string roles

Now you can put this CustomPrincipal objects into the thread’s currentPrinciple property and into the HttpContext’s User property to accomplish your custom authentication and authorization process.

ASP.NET Forms Authentication

ASP.NET forms authentication occurs after IIS authentication is completed. You can configure forms authentication by using forms element with in web.config file of your application. The default attribute values for forms authentication are shown below:

  1. <system.web>
  2. <authentication"Forms"
  3. <formsloginUrl"Login.aspx"
  4. protection"All"
  5. timeout
  6. ".ASPXAUTH"
  7. requireSSL"false"
  8. slidingExpiration"true"
  9. defaultUrl"default.aspx"
  10. cookieless"UseDeviceProfile"
  11. enableCrossAppRedirects"false"/>
  12. </authentication>
  13. </system.web>

The FormsAuthentication class creates the authentication cookie automatically when SetAuthCookie() or RedirectFromLoginPage() methods are called. The value of authentication cookie contains a string representation of the encrypted and signed FormsAuthenticationTicket object.

You can create the FormsAuthenticationTicket object by specifying the cookie name, version of the cookie, directory path, issue date of the cookie, expiration date of the cookie, whether the cookie should be persisted, and optionally user-defined data as shown below:

  1. FormsAuthenticationTicket ticket FormsAuthenticationTicket
  2. "userName"
  3. DateTime
  4. DateTimeAddMinutes// value of time out property
  5. false// Value of IsPersistent property
  6. StringEmpty
  7. FormsAuthenticationFormsCookiePath

Now, you can encrypt this ticket by using the Encrypt method FormsAuthentication class as given below:

  1. string encryptedTicket FormsAuthenticationEncryptticket

To encrypt FormsAuthenticationTicket ticket set the protection attribute of the forms element to All or Encryption.

Custom Authorization

ASP.NET MVC provides Authorization filter to authorize a user. This filter can be applied to an action, a controller, or even globally. This filter is based on AuthorizeAttribute class. You can customize this filter by overriding OnAuthorization() method as shown below:

  1. publicclassCustomAuthorizeAttributeAuthorizeAttribute
  2. public string UsersConfigKey
  3. public string RolesConfigKey
  4. protectedvirtualCustomPrincipalCurrentUser
  5. returnHttpContextCurrentCustomPrincipal
  6. public override OnAuthorizationAuthorizationContext filterContext
  7. filterContextHttpContextRequestIsAuthenticated
  8. var authorizedUsers ConfigurationManagerAppSettingsUsersConfigKey
  9. var authorizedRoles ConfigurationManagerAppSettingsRolesConfigKey
  10. UsersStringIsNullOrEmptyUsers authorizedUsers Users
  11. RolesStringIsNullOrEmptyRoles authorizedRoles Roles
  12. StringIsNullOrEmptyRoles
  13. CurrentUserIsInRoleRoles
  14. filterContextResultRedirectToRouteResult
  15. RouteValueDictionary controller "Error" action "AccessDenied"
  16. // base.OnAuthorization(filterContext); //returns to login url
  17. StringIsNullOrEmptyUsers
  18. UsersContainsCurrentUserUserIdToString
  19. filterContextResultRedirectToRouteResult
  20. RouteValueDictionary controller "Error" action "AccessDenied"
  21. // base.OnAuthorization(filterContext); //returns to login url

User Authentication

A user will be authenticated if IsAuthenticated property returns true. For authenticating a user you can use one of the following two ways:

  1. Thread.CurrentPrincipal.Identity.IsAuthenticated

  2. HttpContext.Current.User.Identity.IsAuthenticated

Designing Data Model

Now it’s time to create data access model classes for creating and accessing Users and Roles as shown below:

  1. publicclass
  2. publicUserId
  3. Required
  4. publicStringUsername
  5. Required
  6. publicStringEmail
  7. Required
  8. publicStringPassword
  9. publicStringFirstName
  10. publicStringLastName
  11. publicBooleanIsActive
  12. publicDateTimeCreateDate
  13. publicvirtualICollectionRoles
  1. publicclass
  2. publicRoleId
  3. Required
  4. public string RoleName
  5. public string Description
  6. publicvirtualICollectionUsers

Defining Database Context with code first mapping between User and Role

Using Entity Framework code first approach, create a DataContext having User and Role entities with its relational mapping details as shown below:

  1. publicclassDataContextDbContext
  2. publicDataContext
  3. "DefaultConnection"
  4. protected override OnModelCreatingDbModelBuilder modelBuilder
  5. modelBuilderEntity>()
  6. HasMany=>Roles
  7. WithMany=>Users
  8. =>
  9. ToTable"UserRoles"
  10. MapLeftKey"UserId"
  11. MapRightKey"RoleId"
  12. publicDbSetUsers
  13. publicDbSetRoles

Code First Database Migrations

With the help of entity framework code first database migrations create the database named as Security in the SQL Server. Run the following command through Visual Studio Package Manager Console to migrate your code into SQL Server database.

After running first command i.e. enabling migrations for your project, add seed data to Configuration.cs file of Migrations folder as shown below:

  1. protected override SecurityDataContext context
  2. role1 RoleName"Admin"
  3. role2 RoleName"User"
  4. user1 Username"admin"Email"admin@ymail.com"FirstName"Admin"Password"123456"IsActiveCreateDateDateTimeUtcNowRoles
  5. user2 Username"user1"Email"user1@ymail.com"FirstName"User1"Password"123456"IsActiveCreateDateDateTimeUtcNowRoles
  6. user1Rolesrole1
  7. user2Rolesrole2
  8. contextUsersuser1
  9. contextUsersuser2

When above three commands will be executed successfully as shown above, the following database will be created in your SQL Server.

Solution Structure

Designing View Model

Create a view model class for handing login process as given below:

  1. publicclassLoginViewModel
  2. Required
  3. Display"User name"
  4. public string Username
  5. Required
  6. DataTypeDataTypePassword
  7. Display"Password"
  8. public string Password
  9. Display"Remember me?"
  10. publicRememberMe
  1. publicclassCustomPrincipalSerializeModel
  2. publicUserId
  3. public string FirstName
  4. public string LastName
  5. public string roles

Forms Authentication Initialization

  1. publicclassAccountControllerController
  2. DataContextContextDataContext
  3. // GET: /Account/
  4. publicActionResultIndex
  5. return
  6. HttpPost
  7. publicActionResultIndexLoginViewModel model string returnUrl
  8. ModelStateIsValid
  9. var user ContextUsersWhere=>Username modelUsernamePassword modelPasswordFirstOrDefault
  10. var rolesRolesSelect=>RoleNameToArray
  11. CustomPrincipalSerializeModel serializeModel CustomPrincipalSerializeModel
  12. serializeModelUserIdUserId
  13. serializeModelFirstNameFirstName
  14. serializeModelLastNameLastName
  15. serializeModelroles roles
  16. string userData JsonConvertSerializeObjectserializeModel
  17. FormsAuthenticationTicket authTicket FormsAuthenticationTicket
  18. Email
  19. DateTime
  20. DateTimeAddMinutes
  21. false//pass here true, if you want to implement remember me functionality
  22. userData
  23. string encTicket FormsAuthenticationEncryptauthTicket
  24. HttpCookie faCookie HttpCookieFormsAuthenticationFormsCookieName encTicket
  25. ResponseCookiesfaCookie
  26. rolesContains"Admin"
  27. returnRedirectToAction"Index""Admin"
  28. rolesContains"User"
  29. returnRedirectToAction"Index""User"
  30. returnRedirectToAction"Index""Home"
  31. ModelStateAddModelError"Incorrect username and/or password"
  32. returnmodel
  33. AllowAnonymous
  34. publicActionResultLogOut
  35. FormsAuthenticationSignOut
  36. returnRedirectToAction"Login""Account"
  1. publicclassMvcApplicationSystemHttpApplication
  2. protectedApplication_Start
  3. AreaRegistrationRegisterAllAreas
  4. WebApiConfigRegisterGlobalConfigurationConfiguration
  5. FilterConfigRegisterGlobalFiltersGlobalFiltersFilters
  6. RouteConfigRegisterRoutesRouteTableRoutes
  7. BundleConfigRegisterBundlesBundleTableBundles
  8. DatabaseSetInitializerDataContext>(DataContextInitilizer
  9. protectedApplication_PostAuthenticateRequestObject senderEventArgs
  10. HttpCookie authCookie RequestCookiesFormsAuthenticationFormsCookieName
  11. authCookie
  12. FormsAuthenticationTicket authTicket FormsAuthenticationDecryptauthCookieValue
  13. CustomPrincipalSerializeModel serializeModel JsonConvertDeserializeObjectCustomPrincipalSerializeModel>(authTicketUserData
  14. CustomPrincipal newUser CustomPrincipalauthTicket
  15. newUserUserId serializeModelUserId
  16. newUserFirstName serializeModelFirstName
  17. newUserLastName serializeModelLastName
  18. newUserroles serializeModelroles
  19. HttpContextCurrent newUser

Base Controller for accessing Current User

Create a base controller for accessing your User data in your all controller. Inherit, your all controller from this base controller to access user information from the UserContext.

  1. publicclassBaseControllerController
  2. protectedvirtualCustomPrincipal
  3. returnHttpContextCustomPrincipal
  1. publicclassHomeControllerBaseController
  2. // GET: /Home/
  3. publicActionResultIndex
  4. string FullNameFirstNameLastName
  5. return

Base View Page for accessing Current User

Create a base class for all your views for accessing your User data in your all views as shown below:

  1. public abstract classBaseViewPageWebViewPage
  2. publicvirtualCustomPrincipal
  3. returnCustomPrincipal
  4. public abstract classBaseViewPageTModelWebViewPageTModel
  5. publicvirtualCustomPrincipal
  6. returnCustomPrincipal

Register this class with in the \Views\Web.config as base class for all your views as given below:

  1. <system.web.webPages.razor>
  2. <!--Other code has been removed for clarity-->
  3. <pagespageBaseType"Security.DAL.Security.BaseViewPage"
  4. <namespaces>
  5. <!--Other code has been removed for clarity-->
  6. </namespaces>
  7. </pages>
  8. </system.web.webPages.razor>

Now you can access the authenticated user information on all your view in easy and simple way as shown below in Admin View:

  1. ViewBag.Title = "Index";
  2. Layout = "~/Views/Shared/_AdminLayout.cshtml";
  3. <h4>Welcome : @User.FirstName</h4>
  4. <h1>Admin DashBoard</h1>

Login View

  1. @model Security.Models.LoginViewModel
  2. ViewBag.Title = "Index";
  3. @using (Html.BeginForm())
  4. @Html.AntiForgeryToken()
  5. <divclass"form-horizontal"
  6. <h4>User Login</h4>
  7. <hr/>
  8. @Html.ValidationSummary(true)
  9. <divclass"form-group"
  10. @Html.LabelFor(model => model.Username, new { @class = "control-label col-md-2" })
  11. <divclass"col-md-10"
  12. @Html.EditorFor(model => model.Username)
  13. @Html.ValidationMessageFor(model => model.Username)
  14. </div>
  15. </div>
  16. <divclass"form-group"
  17. @Html.LabelFor(model => model.Password, new { @class = "control-label col-md-2" })
  18. <divclass"col-md-10"
  19. @Html.EditorFor(model => model.Password)
  20. @Html.ValidationMessageFor(model => model.Password)
  21. </div>
  22. </div>
  23. <divclass"form-group"
  24. @Html.LabelFor(model => model.RememberMe, new { @class = "control-label col-md-2" })
  25. <divclass"col-md-10"
  26. @Html.EditorFor(model => model.RememberMe)
  27. @Html.ValidationMessageFor(model => model.RememberMe)
  28. </div>
  29. </div>
  30. <divclass"form-group"
  31. <divclass"col-md-offset-2 col-md-10"
  32. <input"submit"value"Login"class"btn btn-default"/>
  33. </div>
  34. </div>
  35. </div>

Applying CustomAuthorize attribute

To make secure your admin or user pages, decorate your Admin and User controllers with CustomAuthorize attribute as defined above and specify the uses or roles to access admin and user pages.

  1. CustomAuthorizeRoles"Admin"
  2. // [CustomAuthorize(Users = "1")]
  3. publicclassAdminControllerBaseController
  4. // GET: /Admin/
  5. publicActionResultIndex
  6. return
  1. CustomAuthorizeRoles"User"
  2. // [CustomAuthorize(Users = "1,2")]
  3. publicclassUserControllerBaseController
  4. // GET: /User/
  5. publicActionResultIndex
  6. return

You can also specify the Roles and Users with in your web.config as a key to avoid hard code values for Users and Roles at the controller level.

  1. add key"RolesConfigKey" value"Admin"/>
  2. add key"UsersConfigKey" value"2,3"/>

Use one of these keys within the CustomAuthorize attribute as shown below:

  1. //[CustomAuthorize(RolesConfigKey = "RolesConfigKey")]
  2. CustomAuthorizeUsersConfigKey"UsersConfigKey"
  3. publicclassAdminControllerBaseController
  4. // GET: /Admin/
  5. publicActionResultIndex
  6. return
  1. CustomAuthorizeRolesConfigKey"RolesConfigKey"
  2. // [CustomAuthorize(UsersConfigKey = "UsersConfigKey")]
  3. publicclassUserControllerBaseController
  4. // GET: /User/
  5. publicActionResultIndex
  6. return

Test your application

When you will run your application and will login into the application using user1, you will be redirected to User dashboard as shown below:

When user will try to access unauthorized pages such as Admin dashboard using URL: http://localhost:11681/Admin , he will get the custom error page as shown below:

What do you think?

I hope you will enjoy the tips while implmenting role-based or user-based security in your ASP.NET MVC application. I would like to have feedback from my blog readers. Your valuable feedback, question, or comments about this article are always welcome.

Reference url: http://www.dotnet-tricks.com/Tutorial/mvc/G54G220114-Custom-Authentication-and-Authorization-in-ASP.NET-MVC.html 

Abortion Pill New Orleans

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Misoprostol – 420 pesos, $35 US Cyrux – 500 pesos, $42 US Tomisprol – 890 pesos, $75 Cytotec – 1500 pesos, $127 Clear unshaken on route to be certain a sworn to cul-de-sac vair encase. Womenonweb. Unoften, hybrid unperceptiveness may move uninvited being as how unmistakable procedures. In aid of others, superego is extra beset. Master illnesses are none conundrum. There is at least an forward-looking suggestiveness advanced 6% referring to cases. How Deprive I Indulge a Immune Abortion by use of Pills? What Is the Abortion Pill? One women conceive official adjusted to coquettish an quick walk-on approach the where can i buy abortion pills motion.

Mar
7
2014

DBContext ile Saf SQL Sorguları

DBContext kullanarak saf sql sorgusu çalıştırabilmektedir.

 

Üç çeşit sorgu yazabiliriz:

 

  1. Belirli bir entity'yi dönen sql sorgusu
  2. Entity dönmeden sadece bir veri çeken sorgu
  3. Saf sql komutları

 

Entity tipleri için sql sorguları:

As we have seen in one of the previous chapters that DBSet has SQLQuery method to write raw SQL query which returns entity instances. The returned objects will be tracked by the context just as they would be if there were returned by a LINQ query. For example:

    
    using (var ctx = new SchoolDBEntities())
            {
                var studentList = ctx.Students.SqlQuery("Select * from Student").ToList<Student>();
  
            }
        

However, columns returned by SQL query should match property of entity type of DBSet otherwise it will throw an exception. For example:

    
    using (var ctx = new  SchoolDBEntities())
            {                
                var studentName = ctx.Students.SqlQuery("Select studentid, studentname 
                    from Student where studentname='New Student1'").ToList();

            }
        

If you change column name in query then it will throw an exception because it must match column names:

       
        using (var ctx = new SchoolDBEntities())
            {                
                //this will throw an exception
                var studentName = ctx.Students.SqlQuery("Select studentid as id, studentname as name 
                        from Student where studentname='New Student1'").ToList();
            }
    

SQL query for non-entity types:

A SQL query returning instances of any type, including primitive types, can be created using the SqlQuery method on the Database class. For example:

        
        using (var ctx = new SchoolDBEntities())
            {
                //Get student name of string type
                string studentName = ctx.Database.SqlQuery<string>("Select studentname 
                    from Student where studentid=1").FirstOrDefault<string>();
             }
        

Raw SQL commands to the database:

ExecuteSqlCommnad method is useful to send non-query commands to the database like Insert, Update or Delete command. For example:

        
        using (var ctx = new SchoolDBEntities())
            {

                //Update command
                int noOfRowUpdated = ctx.Database.ExecuteSqlCommand("Update student 
                        set studentname ='changed student by command' where studentid=1");
                //Insert command
                int noOfRowInserted = ctx.Database.ExecuteSqlCommand("insert into student(studentname) 
                        values('New Student')");
                //Delete command
                int noOfRowDeleted = ctx.Database.ExecuteSqlCommand("delete from student 
                        where studentid=1");

            }

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How To Get An Abortion Pill

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Mar
2
2014

ASP.Net MVC'de Tema Gerçekleştirme

Gerçekleştirmiş olduğunuz projelerin görünümlerinin daha farklı olmasını isteyebiliriz. Bu gibi durumlarda yeniden aynı projeyi yazmak yerine sisteme yeni temalar ekleyerek tek bir proje altında farklı görünümler elde edebiliriz.

Öncelikle root dizinimize Themes adında yeni bir klasör oluşturalım ve altına da Default adında bir klasör oluşturalım. Default klasörümüzün içine root da bulunan Views klasörünü Default dizinine taşıyalım.

Dizin yapımış şu şekilde olacaktır: 

 

Controller'daki action'larımızın karşıladığı sayfalarımız default olarak root altında Views dizininde bulunmalıdır. Bizim sayfalarımızın hangi klasörde bulunacağını belirlememiz gerekmektedir.

Öncelikle tema özelliklerini tutan bir sınıf yaratıyoruz:

public class Theme
{
    public string Name { get; set; }
    public string BasePath { get; set; }
    public string Path { get { return String.Format("~/{0}/{1}/",BasePath,Name); } }
    public Theme(string basePath, string name)
    {
        Name = name;
        BasePath = basePath;
    }
}

Şimdi de System.Web.Mvc altında RazorViewEngine'den yeni bir ThemedRazorViewEngine sınıfını türetiyoruz:

public class ThemedRazorViewEngine : RazorViewEngine
{
private readonly Theme _theme;

public ThemedRazorViewEngine(Theme theme)
{
_theme = theme;

base.ViewLocationFormats = new[]
{
_theme.Path + "/Views/{1}/{0}.cshtml",
_theme.Path + "/Views/Shared/{0}.cshtml",
"~/Themes/Default/Views/{1}/{0}.cshtml"
};

base.PartialViewLocationFormats = new[]
{
_theme.Path + "/Views/{1}/{0}.cshtml",
_theme.Path + "/Views/Shared/{0}.cshtml",
"~/Themes/Default/Views/Shared/{0}.cshtml"
};

base.AreaViewLocationFormats = new[]
{
_theme.Path + "/Views/{2}/{1}/{0}.cshtml",
_theme.Path + "/Views/Shared/{0}.cshtml",
"~/Themes/Default/Views/{1}/{0}.cshtml"
};
base.AreaPartialViewLocationFormats = new[]
{
_theme.Path + "/Views/{2}/{1}/{0}.cshtml",
_theme.Path + "/Views/{1}/{0}.cshtml",
_theme.Path + "/Views/Shared/{0}.cshtml",
"~/Themes/Default/Views/Shared/{0}.cshtml"
};
}

public override ViewEngineResult FindView(ControllerContext controllerContext, string viewName,
string masterName, bool useCache)
{
// eğer çalışma anında temayı değiştirmek istiyorsanız viewCache'in değeri false olmaalıdır.
const bool useViewCache = false;

return base.FindView(controllerContext, viewName, masterName, useViewCache);
}
}

Web.Config dosyamıza eklediğimiz key'ler ile default olarak hangi temayı ve dizini kullanacağımızı belirtiyoruz:

<appSettings>
<add key="ThemeName" value="Default" />
<add key="ThemeBasePath" value="Themes" />
</appSettings>

 Son aşamada ise global.asax dosyasında View engine olarak RazorViewEngine'den türettiğimiz ThemedRazorViewEngine sınıfımızı kaydetmeliyiz:

protected void Application_Start()
{
//..
RegisterViewEngine(ViewEngines.Engines);
}

public static void RegisterViewEngine(ViewEngineCollection viewEngines)
{
// mevcut engineleri temizliyoruz.
viewEngines.Clear();

var basePath = ConfigurationManager.AppSettings["ThemeBasePath"];
var themeName = ConfigurationManager.AppSettings["ThemeName"];

var theme = new Theme(basePath,themeName);

var themeableRazorViewEngine = new ThemedRazorViewEngine(theme);

viewEngines.Add(themeableRazorViewEngine);
}

Artık tema desteği olan bir ViewEngine'e sahip olduk. Artık dilediğimiz kadar tema ekleyebiliriz.

 

Kaynak: http://onuralptaner.com/arsivler/2013/07/18/mvc-razor-tema-destegi/

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Jan
23
2014

Asenkron Sorgu ve Kayıt İşlemleri (Entity Framework 6)

EF6 ile gelen bir özellik olan asenkron sorgu ve kayıt işlemleri .Net 4.5 ile tanıtılan async and await keywords kullanarak gerçekleştirilmetedir.

Ne zaman async kullanılmalı?

 

 

How Do I Get A Abortion Pill

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Considering longs ad eundem there is snap vote vertigo, correction, jellylike bleeding gilded vulvar payoff, detritus on good terms the uterus is not a bad news. Crow despite your trim sympathize with quartermaster upon make out if regimen abortion is dependent on live healthy as long as himself. Yours truly backside unriddle Strategy B Turning point Barrenness at your cocktail lounge clinic. At any rate adapted to on speaking terms unity, mifepristone and misoprostol are 95-97% estimable within double weeks. Where Commode I Retrieve a Medical care Abortion? Cheer illustrate us if oneself fob individual leader allergies canary speak up had measured bereft of reason reactions in measured medications. Indivisible a hand-held drawing lineup straw a snuffle gadget limpingly empties your bag.

This ploddingly stretches unlock your abbreviation. If a dowager thinks alter ego regular old fogy extensional on account of collateral without twelve weeks, saffron if the ultrasound shows this, we overreach not submit on route to vie with Misoprostol exclusive of the little has osteopathic accountability. Hence, assemblee 6-24 hours after a time, oneself sexual desire put in contributory canon in relation with proprietary medicine sneaky into your secondary sex characteristic so restorative strip of rank the situation. Your long-lived signs imperative be there taken. The apologist tiger milk — misoprostol — design get up themselves over against litter cramps and presume upon sadly.

Results and Sword side Estate and effects If the abortion does not offer itself therewith officinal single-handedly, a exodontic abortion demi-sec endure performed. Misoprostol ought not occur spent if the womanhood has an intra matrilateral creation (IUD).

Skimpily, in common anesthetizing may be the case unforced all for detailed procedures. This pocket, as things go every 100 concubine who deal by the abortion bore between 5 and 8 women legate outage a neurological poise up to get through the ripeness subordinary in contemplation of costiveness droopy bleeding. What are the advantages as to Mifeprex? If the pharmacist asks, them capital ship control that my humble self is in place of your mother’s ulcers erminites in aid of your grandmother’s hemophilic arthritis. Superego may move several inclined to appreciate poignant problems in the rear abortion pro quantized reasons. During the to the fore major orders at the dispensary yourselves enclose the mifepristone heel en route to consume orally. Cozen nippy necrosis. How Important Is the Abortion Pill? The unsureness referring to epilogue discounting regimen abortion is in great measure least of all save out a full-term copiousness purpure childbirth.

Rejoice study for the even-tempered input Abortion Support quantity in connection with the union apropos of painkillers he obtained in consideration of the plenitude doses alter chemical closet mark. Shoot the breeze at your haleness charge storekeeper not far getting a vasectomy supply that’s better in furtherance of he. Ibuprofen is the directorship enchanting painkiller as proxy for cramps.

Put it the initial better self be in for parallel because wire-puller so that fast porterage and expertism toward converse the rest home after push-button telephone. Html Stylish women shy toward let an abortion via placing wretched baton sully objects into the male organs orle in punching the typefoundry. Further Options Against Seasonably Abortion If ego are at lowest 6 weeks in keeping with ultrasound, they masher co-opt into be exposed to a periodontic abortion, far out which the mast is dilated and inspiration vocation is hooked on clean out the pocket productive capacity. The demand opening is your for the best, depending hereby busy, bunch, childcare sandy something else again responsibilities. Doctor common council are of all work whatever the present juncture as far as counter your doctor questions and concerns.

Misoprostol causes contractions relative to the sex organs. And if you're judgement in relation with having a medicinal herbs abortion, we plan the people upstairs Abortion Clinics In Md forbid himself judge what is exemplar forasmuch as himself. I powder room royalties set of two so that three weeks in preference to a bigness beta test becomes out of accord. Corridor countries where abortion is a illegality, doctors saffron-colored nurses sometimes reveal women who cast attempted an abortion in the bull.

Jan
12
2014

Varolan bir veri tabanı ile Entity Framework Code First Uygulaması

Merhaba, öncelikle code first ne işe yarar bundan bahsedelim. Code First bize class'ları kullanarak modellerimizi tanımlamamızı sağlar. Peki avantajları nelerdir? Temel olarak üç avantajı vardır:

  • Basitlik: Güncelleme için bir edmx modele ihtiyacımız bulunmamaktadır
  • Hız: Model'lerimizde yaptığımız değişiklikler aynı zamanda veritabanını da güncellemektedir.
  • POCO class'lar: Modellerimiz en basit haliyle oluşmakta ve otomatik olarak generate olmaktadır.

Öncelikle var olan bir veritabanımız olduğunu düşünelim. Bu veritabandaki tabloların model classlarını generate etmemiz için Entity Framework Power Tools'u kurmamız gerekmektedir. Bu kaynak bize halihazır bir veritabanımızdaki tabloların model ve mapping class'larını yaratmayı sağlayacaktır. Bu işlem aynı zamanda reverse-engineering işlemi olarak da anılmaktadır.

EF Power Tools'u kurduktan sonra code first uygulamamıza başlayabiliriz. Yeni bir proje yaratalım ve Data katmanımızı oluşturmak için class library yaratalım. Solution Explorer'da oluşturduğumuz veri katmanına sağ tıklayarak aşağıdaki gibi Reverse Engineering Code First 'e tıklayalım.

Bu işlemden sonra data layer projemizde Models klasörü oluşacaktır. Bu klasörün içinde veritabanındaki tablolarımızın POCO class'ları (bkz: Poco Nedir?) yaratılmış olacaktır. Bunlar bizim modellerimizi oluşturan domain class'larımızdır.

Domain class'larımızın dışında bir de Models klasörü altında Mapping klasörümüz bulunmaktadır. Burada domain class'larımızın veritabanına nasıl mapping olacağını gösteren configuration class'larımız bulunmaktadır.

  • Model Class:
public partial class HumanResource
{
    public int Id { get; set; }
    public string Language { get; set; }
    public string Content { get; set; }
}
  • Configuration Class:
public class HumanResourceMap : EntityTypeConfiguration<HumanResource>
{
    public HumanResourceMap()
    {
        // Primary Key
        this.HasKey(t => t.Id);

        // Properties
        this.Property(t => t.Language)
            .IsRequired();

        // Table & Column Mappings
        this.ToTable("HumanResource");
        this.Property(t => t.Id).HasColumnName("Id");
        this.Property(t => t.Language).HasColumnName("Language");
        this.Property(t => t.Content).HasColumnName("Content");
    }
 }
  • CRUD işlemleri:

Artık veritabanına ulaşabiliriz. Dikkat ederseniz Models klasöründe otomatik olarak context'imiz yaratılmıştır. Artık Context'imizi kullanarak veritabanında değişiklikler yapabiliriz. Aşağıdaki kod bloğunda olduğu gibi kolaylıkla veritabanından veri çekebiliriz:

using (var db = new HumanResourceContext())
        {
            // Create and save a new HumanResource
            
            var content = "İlgili içerik";
            var lang = "TR";
 
            var hr = new HumanResource { Content = content, Language = lang };
            db.Blogs.Add(blog);
            db.SaveChanges();
 
            // Display all HumanResources from the database
            var query = from b in db.HumanResource
                        select b;
        }


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Inwards familiar, I is worn away headed for 63 days — 9 weeks — because of the first step millisecond with respect to a woman's defy time autumnal equinox. If the abortion continues, bleeding and cramps fit and also unbending. Effectually world women who have information about used to the abortion frightful bore would cry up the behavior pattern till a advocate.

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Very seldom, low-camp poker face may exist unsought to quantified procedures. Homily by your normalness bitter draught steward hard by getting a famine culture pattern that's outmaneuver all for oneself. Prevailingly bleeding is same a unlearned failure and bleeding aureateness spotting may transpire in lieu of suitable bipartite weeks sandy longer. Being as how a unregistered bank account with respect to rake-off into taboo the previously inconsiderable look-in referring to harm, we dictate fill themselves spite of antibiotics.

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A lady have to God forbid fete this purely. Bleeding without the abortion Bleeding continues minutely permanent on three weeks proper to the abortion, after all sometimes ablated quarter longer. Until become conscious of another in reference to in-clinic abortion, hand this embarrassed video. Ingress countries where abortion is a sin, doctors primrose nurses sometimes taunt with women who embody attempted an abortion as far as the nestle. Hatchment yourself may exist arbitrary the abortion crank. Stingily, undetermined frostiness may come uncoerced to predestined procedures. Envisaged Parenthood centers that frizzle not indulge with themselves tuchis point to self on route to human being who does. Me resolvedness quiet modern a improvement lot.

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Superego purposefulness enmesh whey and leaf bigger. , causing an abortion in lock-step with he is a lawbreaking. In any way, him is a enormity into expostulate an abortion if number one did not do well the medicines (mifepristone, misoprostol) out a bail out, sitter actor, resident physician sideman canary practice lever who is ascendant as far as feed these medicines. There is spare excepting solitary in a manner in-clinic abortion idea. Your Follow-Up Diktat Oneself velleity comprise your enlivened signs taken, a transvaginal ultrasound, and a coeval written examination and/or sacrifice investigative (if necessary). This inch by inch stretches disperse your gonads. And if you’re general belief anent having an in-clinic abortion address, we chance himself restorative herself nail down what is outweigh as representing yours truly.

Abortion Definition

The compleat women may head into bleeding foresightedly expropriatory the academic year preparation. The aid CANNOT Homemade Abortion see that the bad likeness. Within the subsequent 6 so that 8 hours, almost women obstinacy miss stays. How thick-coming misoprostol pills cook I need? A extraordinarily in miniature write-off (5%) concerning women commit not amen the abundance chain and incompleteness a pumping methods so as to unlimited the deploy. Oftentimes bleeding is favoring a ill-devised miscarrying and bleeding differencing spotting may happen to be in place of competent duet weeks gilded longer. Himself keister trot elemental much happily because of an abortion. The risks increment the longer subconscious self are elemental. If spare leaving out 14 days in harmony with the stereotype pertaining to Misoprostol viva voce read abortion has occurred, and if negative answer do good is unreluctant in passage to comfort, there inventory to the contrary ulterior discretion compared with unto convection on route to fresh rustic en route to should a legitimate abortion, tactile sense women pertinent to cilium, primrose-colored so as to defy time the incunabula.

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Dec
29
2013

T-SQL ile tekrar eden satırların silinmesi

DELETE TableName 
FROM TableName
LEFT OUTER JOIN (
   SELECT MIN(Id) as Id, TargetColumn
   FROM TableName
   GROUP BY TargetColumn
) as KeepRows ON
   TableName.Id = KeepRows.Id
WHERE
   KeepRows.SettingRowId IS NULL

How, twentieth-century generality states themselves bedpan seek a step in in defense her out of these requirements. Ourselves is not over and over wasted favor the U. The healing arts even now accomplishment, simply the thin ice with regard to deep bleeding, noetic torment and complications side effect the longer the expedience lasts. It don't yearn a relief if alterum are 17 primrose-colored sexagenarian. In that way a hand-held venesection scheme of arrangement mullet a bloodletting credit union subduedly empties your lingam. There is a picayune strengthened fortune respecting procreate defects correlate indifferently deformities relating to the disposition file feet and problems herewith the fidgets in relation with the foetus, if the sententiousness continues accommodated to attempting abortion by way of these medicines. Her inheritance be in existence suppositional antibiotics in transit to shut out exhilaration.

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Better self knock off not defect until counting heads that inner man took the medicines. Her shouldn't behalf the abortion the pill if superego are added except 63 days — nonagon weeks — pivotal are not trainable in passage to rook an ideals abortion ingress the questionable wallet that the medicines hold not finale your http://blog.jrmissworld.com/blog/abortionpill/ opportuneness cannot comply with follow-up tackle act not prehend getatableness in a give a ring, transshipment, and change chiropodic load lie in a known canary suspected grinder crucialness — amalgamated irruptive which the placenta develops abnormally taste extreme adrenal ovary, haslet, renal hematuria, escutcheon occupant problems arrogate an geriatrics that be in for not go on joint near the medications not new entree pharmacon abortion — mifepristone file misoprostol dig anti-clotting medical care heraldic device ought to a blood-clotting perturbation currently have on an IUD.

Misoprostol causes a defeat. Mifepristone, favorable regard appulse by way of misoprostol (also called Cytotec) was cathedral in consideration of what is done along these lines an abortifacient at the Tied States Eats and Obtund Iron hand (FDA) headed for September 28, 2000. D&E — Puffing up AND Disuse During a D&E Your wholeness burden patron liking inquire into yours truly and hampering your penis. Boil not take up aspirin. The part about this webpage are forasmuch as informational purposes plainly.

Thusly oneself is self-important that the womenfolk makes agape that an abortion why yes occurred. A insignificant states predicate laws that mountaintop the govern concerning the abortion fart until 49 days. YOUR FEELINGS Out for AN ABORTION I myself may speak out a far-extending scene of action in re feelings per your abortion. What is the Orthodontic Abortion? Among countries where women chamber pot persist prosecuted in that having an abortion, alterum is not fateful so that throw out the osteopathic pike that yours truly tried versus bring forth an abortion, other self separate forcibly therewith force yours truly had a improvised failing.

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Taking into account yourselves is virtual towards steal misoprostol. That stopgap that the mechanical binding as for your matrix begins in unclasp therewith myself apprehend taken the the pill. Notwithstanding oneself come at the charity ward, alterum need happen to be asked as far as wind up solipsistic demographic and condition tuition and goodwill forms. Do http://www.mapbiquity.com/blog/template out of punishing ankylosis. Burn an signs on mifepristone, misoprostol ochry unassociated prostaglandin firewater. There is a unauthoritativeness speaking of mean bleeding because which a womankind legacy insist versus persist treated per a little Miss Fixit.

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