private void cmbOrderID_SelectedIndexChanged(object sender, EventArgs e)//select ORDERID and dispaly all of info related to it
{
order1 = new Order();
List <OrderDetail> orderDetails = new List <OrderDetail>();
order1 = OrdersDB.GetOrder(Convert.ToInt32(cmbOrderID.Text));//get specific ORDER recorder and return it to order1
//need display method
OrderDisplay(); //display order info
orderDetails = OrderDetailsDB.GetRelativeDetails(order1.OrderID); //get related orderdetails info from TABLE order details
dgvOrderDetail.DataSource = orderDetails; //set gridviewer datasource equals to orderdetails and display it
if (orderDetails.Count > 0) //there are relative details
{
//call summary of total charges from order details in TABLE ORDER DETAILS
txtTotalCharge.Text = OrderDetailsDB.GetTotalCharge(order1.OrderID).ToString("c");
}
else
{
txtTotalCharge.Text = null;
}
}
