ChangePassword

This method updates the password for a user.

Declaration

// C#
public override bool ChangePassword(string userName, string oldPassword, 
  string newPassword);

Parameters

userName

The user to update the password for.
oldPassword

The current password for the specified user.
newPassword

The new password for the specified user.

Return Value

Returns true if the password was updated successfully; otherwise, returns false.

Exceptions

ArgumentNullException - The userName, oldPassword, or newPassword parameter is null.

System.Web.Security.MembershipPasswordException - userName was not found in the membership database.

System.Configuration.Provider.ProviderException - An error occurred when setting the new password in the database.

Exception - An unhandled exception has occurred.

ArgumentException - One of the following conditions exists:

The userName parameter is an empty string, contains a comma, or is longer than 256 characters.
The oldPassword parameter is an empty string or is longer than 128 characters.
The newPassword parameter is an empty string, is longer than 128 characters (including the encoded version), is less than the value of the MinRequiredPasswordLength property, has a number of nonalphanumeric characters less than the value of MinRequiredNonAlphanumericCharacters property, or does not match the regular expression defined in the PasswordStrengthRegularExpression property.
The change-password operation was canceled by a subscriber to the ValidatingPassword event, and the FailureInformation property was a null reference.

Remarks

The ChangePassword method returns true if the supplied user name and password are valid and the password was updated successfully; otherwise, it returns false.