private void TxtEndDate_Validating(object sender, CancelEventArgs e)
 {
     if (_Tag == "" || ActiveControl == TxtEndDate)
     {
         return;
     }
     if (TxtEndDate.Text != "  /  /")
     {
         try
         {
             if (ClsGlobal.CheckDateInsideCompanyPeriod(Convert.ToDateTime(TxtEndDate.Text)) == 1)
             {
                 ClsGlobal.DateRangeMsg();
                 TxtEndDate.Focus();
             }
         }
         catch
         {
             MessageBox.Show("Please enter valid date.", "Mr. Solutions", MessageBoxButtons.OK, MessageBoxIcon.Error);
             TxtEndDate.Focus();
         }
     }
     else
     {
         ClsGlobal.DateRangeMsg();
         TxtEndDate.Focus();
     }
 }