/// <summary>
/// Retrieves a MembershipUser object from the criteria given
/// </summary>
/// <param name="providerUserKey">User to be found based on UserKey</param>
/// <param name="userIsOnline">Is the User currently online</param>
/// <returns>Username as string</returns>
public override string GetUserNameByEmail(string email)
{
if (email == null)
{
ExceptionReporter.ThrowArgumentNull("MEMBERSHIP", "EMAILNULL");
}
DataTable Users = DB.GetUserNameByEmail(this.ApplicationName, email);
if (this.RequiresUniqueEmail && Users.Rows.Count > 1)
{
ExceptionReporter.ThrowProvider("MEMBERSHIP", "TOOMANYUSERNAMERETURNS");
}
if (Users.Rows.Count == 0)
{
return(null);
}
else
{
return(Users.Rows [0] ["Username"].ToString());
}
}