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FormsAuthenticationEventArgs Class

Definition

Provides data for the FormsAuthentication_OnAuthenticate event. This class cannot be inherited.

C#
public sealed class FormsAuthenticationEventArgs : EventArgs
Inheritance
FormsAuthenticationEventArgs

Examples

The following code example uses the FormsAuthentication_OnAuthenticate event to set the User property of the current HttpContext to a GenericPrincipal object with a custom Identity.

C#
public void FormsAuthentication_OnAuthenticate(object sender, FormsAuthenticationEventArgs args)
{
  if (FormsAuthentication.CookiesSupported)
  {
    if (Request.Cookies[FormsAuthentication.FormsCookieName] != null)
    {
      try
      {
        FormsAuthenticationTicket ticket = FormsAuthentication.Decrypt(
          Request.Cookies[FormsAuthentication.FormsCookieName].Value);
        
        args.User = new System.Security.Principal.GenericPrincipal(
          new Samples.AspNet.Security.MyFormsIdentity(ticket),
          new string[0]);
      }
      catch (Exception e)
      {
        // Decrypt method failed.
      }
    }
  }
  else
  {
    throw new HttpException("Cookieless Forms Authentication is not " +
                            "supported for this application.");
  }
}

Remarks

The FormsAuthenticationEventArgs class is used to supply event values to the FormsAuthentication_OnAuthenticate event and to enable you to specify a custom identity for the current request.

The FormsAuthenticationModule constructs a FormsAuthenticationEventArgs object using the current HttpContext and passes it to the FormsAuthentication_OnAuthenticate event.

You can use the User property to set the User property of the current HttpContext to a custom IPrincipal object.

If you do not specify a value for the User property during the FormsAuthentication_OnAuthenticate event, the identity supplied by the forms authentication ticket in the cookie or URL is used.

The FormsAuthentication_OnAuthenticate event is only raised when the authentication Mode is set to Forms and the FormsAuthenticationModule is an active HTTP module for the application.

Constructors

Properties

Context

Gets the HttpContext object for the current HTTP request.

User

Gets or sets the IPrincipal object to be associated with the current request.

Methods

Equals(Object)

Determines whether the specified object is equal to the current object.

(Inherited from Object)
GetHashCode()

Serves as the default hash function.

(Inherited from Object)
GetType()

Gets the Type of the current instance.

(Inherited from Object)
MemberwiseClone()

Creates a shallow copy of the current Object.

(Inherited from Object)
ToString()

Returns a string that represents the current object.

(Inherited from Object)

Applies to

Product Versions
.NET Framework 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1

See also