private void OrderMaintenance_Load(object sender, EventArgs e)
{ //initialize the text box
txtCustomerID.Enabled = false;
txtOrderDate.Enabled = false;
txtRequiredDate.Enabled = false;
txtShippedDate.Enabled = false;
txtTotalCharge.Enabled = false;
List <int> orderId = new List <int>(); //empty list
try
{
orderId = OrdersDB.GetAllOrderID(); //get all orderID from TABLE order
cmbOrderID.DataSource = orderId; //set all of orderID to combox to list them
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, ex.GetType().ToString());
}
}
