/// <summary>
/// Gets the password changed date.
/// </summary>
/// <param name="userName">Name of the user.</param>
/// <returns>The date and time when the password was most recently changed, or <see cref="System.DateTime.MinValue"/> if the password has not been changed for this account.</returns>
/// <exception cref="System.InvalidOperationException">
/// The <seealso cref="Initialized"/> method was not called.-or-
/// The <seealso cref="InitializeDatabaseConnection(string)"/> method was not called.-or-
/// The <seealso cref="MySqlSimpleMembershipProvider"/> membership provider is not registered in the configuration of your site.
/// For more information, contact your site's system administrator.
/// </exception>
public static DateTime GetPasswordChangedDate(string userName)
{
MySqlSimpleMembershipProvider provider = VerifyProvider();
Debug.Assert(provider != null); // VerifyProvider checks this
return(provider.GetPasswordChangedDate(userName));
}