This method returns the user name associated with the specified e-mail address.

Declaration

// C#
public override string GetUserNameByEmail(string emailAddress);

Parameters

• emailAddress

  The email address to search for.

Return Value

The user name associated with the specified e-mail address. If no match is found, then it returns a null reference.

Exceptions

ArgumentException - E-mail address exceeds 256 characters.

System.Configuration.Provider.ProviderException - More than one user with the same e-mail address exists in the database and the RequiresUniqueEmail property is true.

Remarks

If the value of the RequiresUniqueEmail property is true, then a unique e-mail address must be associated with each user name.