ClientFormsAuthenticationMembershipProvider::ValidateUser Method (String, String)
Authenticates a user by using the specified user name and password.
Assembly: System.Web.Extensions (in System.Web.Extensions.dll)
Parameters
- username
- Type: System::String
The name of the user to authenticate, or Empty or nullptr to retrieve credentials from the IClientFormsAuthenticationCredentialsProvider implementation that this application is configured to use.
- password
- Type: System::String
The password of the user to authenticate.
| Exception | Condition |
|---|---|
| WebException | The IsOffline property value is false and the membership provider is unable to access the authentication service. |
You can use client application services to validate users by using forms authentication. To validate users, you will typically call the static Membership::ValidateUser method, which internally calls the ClientFormsAuthenticationMembershipProvider::ValidateUser method. Alternatively, you can call this method directly, as shown in the Example section.
Forms authentication requires that the user specify their credentials through login controls provided by your application. You can retrieve the credentials and pass them to the Membership::ValidateUser method. You can also pass in empty strings or nullptr to use a credentials provider. For more information, see How to: Implement User Login with Client Application Services.
The following example code demonstrates how to use this method to validate the user by using an IClientFormsAuthenticationCredentialsProvider implementation. This example requires that you to configure your application to use a credentials provider. For more information, see How to: Configure Client Application Services.
Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.