Retrieves user credentials.
Assembly: System.Web.Extensions (in System.Web.Extensions.dll)
When using forms authentication with client application services, you can pass a user name and password to the ValidateUser method. You can also pass empty strings or null as the parameters to use a credentials provider. A credentials provider is a class that you provide and specify in your application configuration. A credentials provider class must implement the IClientFormsAuthenticationCredentialsProvider interface, which has a single method called . A typical method implementation will display a dialog box to retrieve user input. Using a credentials provider enables you to share a single login dialog box among multiple applications. For more information, see How to: Implement User Login with Client Application Services.
The following example code demonstrates how to implement the method. In this example, the method is part of a login dialog box class. This method displays the dialog box, and then returns a ClientFormsAuthenticationCredentials instance initialized with the user-specified values.