private void NameTB_Validating_1(object sender, CancelEventArgs e)
{
string Name = NameTB.Text.Trim();
if (string.IsNullOrEmpty(Name))
{
NameErr.SetError(NameTB, "You have to enter a name");
e.Cancel = true;
}
}
private void NameTB_Validated(object sender, EventArgs e)
{
NameErr.Clear();
}
