public OrdersForm(string CustID)
{
//
// Required for Windows Form Designer support
//
InitializeComponent();
_CustID = CustID;
// create an instance of the orders Web Service
// and fetch the data
OrdersService.RemotingOrders wsOrders = new OrdersService.RemotingOrders();
_dsOrders = wsOrders.Orders(CustID);
_dsLookups = wsOrders.Lookups();
BindData();
// set some default values for new rows
_dsOrders.Tables["Orders"].Columns["CustomerID"].DefaultValue = _CustID;
_dsOrders.Tables["Orders"].Columns["ShipVia"].DefaultValue = _dsLookups.Tables["Shippers"].Rows[0]["ShipperID"];
// set the position for the first row
// this ensures that the buttons/textboxes are enabled or disabled according to the data
OrdersRowPosition_Changed(this.BindingContext[_dsOrders, "Orders"], (EventArgs)null);
}
// the errors form has been closed so refresh the data
void ErrorFormClosed(Object sender, EventArgs e)
{
OrdersService.RemotingOrders wsOrders = new OrdersService.RemotingOrders();
DataSet dsOrders = wsOrders.Orders(_CustID);
_dsOrders.Merge(dsOrders, false);
_dsOrders.AcceptChanges();
}
//process all of the updates
private void btnUpdate_Click(object sender, System.EventArgs e)
{
OrdersService.RemotingOrders OrdersService;
// Stop any current edits.
this.BindingContext[_dsOrders, "Orders"].EndCurrentEdit();
this.BindingContext[_dsOrders, "Orders.CustOrders"].EndCurrentEdit();
// Check to see if any changes have been made.
if (_dsOrders.HasChanges())
{
DataSet dsUpdate;
DataSet dsChanges;
// Clear all old errors in the Customers table before
// we attempt to save
ClearAllErrors();
// Get the changes that have been made to the main dataset.
dsChanges = _dsOrders.GetChanges();
if (dsChanges != null)
{
// update the data source
OrdersService = new OrdersService.RemotingOrders();
dsUpdate = OrdersService.UpdateOrders(_CustID, dsChanges);
// clear the current data
// it will be reloaded with the full data returned from the web service
_dsOrders.Clear();
// merge the changed rows back into the original data
_dsOrders.Merge(dsUpdate, false);
// If there are errors show the error form
if (_dsOrders.HasErrors)
{
ErrorsForm f = new ErrorsForm(_CustID, dsUpdate, _dsLookups);
this.AddOwnedForm(f);
f.Show();
// add a handler so that we know when the error form has been closed
f.Closed += new EventHandler(ErrorFormClosed);
}
else
{
// no errors, so just accept the changes
_dsOrders.AcceptChanges();
}
}
}
}
