TextBox Error Provider for Tab Page in C#.net

TextBox Error Provider for Tab Page in C#.net

public static bool TextBoxErrorControl(TextBox txt, string message,TabPage tp)
{
if (!string.IsNullOrEmpty(txt.Text))
{
ErrProvider.SetError(txt, "");
}
else
{
ErrProvider.SetError(txt, message);
}
object[] control = ErrProvider.GetControls(tp).ToArray();
if (control.Length > 0)
return false;
else
return true;
}