private void RBCreate_CheckedChanged(object sender, EventArgs e)
 {
     BtnAdd.Enabled    = true;
     BtnUpdate.Enabled = false;
     TextBoxClearEvent();
     CmbCustID.Focus();
 }
        private void CustomerCreations_Load(object sender, EventArgs e)
        {
            LoadCustomerCombo();
            LoadVehicleCombo();
            GridViewLoad();
            LoadSalesRepCombo();
            CmbCustID.Select();
            ToolTip tip = new ToolTip();

            tip.SetToolTip(BtnExcel, "Export to excel");
            tip.SetToolTip(ChkEnableSearch, "Check to enable search");
        }