public void TextBoxClearEvent()
 {
     TxtAreaName.Clear();
     TxtCustLat.Clear();
     TxtCustLon.Clear();
     CmbCustID.SelectedItem = null;
     CmbVhiID.SelectedItem  = null;
     CmbVhiID.SelectedItem  = null;
     LblId.Text             = "";
 }
 private void CmbSalesRep_KeyDown(object sender, KeyEventArgs e)
 {
     if (e.KeyCode == Keys.Enter)
     {
         if (CmbSalesRep.SelectedItem != null)
         {
             TxtCustLat.Focus();
             e.Handled = true;
         }
         else
         {
             MessageBox.Show("Fill the 'Sales Rep' to continue...!", "Input Error", MessageBoxButtons.OK, MessageBoxIcon.Warning);
         }
     }
 }