private void bnPendingTransactions_Click(object sender, EventArgs e)
{
// XXX List Pending Transactions button event handl
while (true)
{
try
{ // to capture an exception from SelectedIndex/SelectedItem of listPendingTransactionsDialog
listPendingTransactionsDialog.ClearDisplayItems();
//listPendingTransactionsDialog.AddDisplayItems(null); // null is a dummy argument
foreach (Transaction tran in BookShopControl.listOfPendingTransactions)
{
//TODO move into new method
listPendingTransactionsDialog.AddDisplayItems(tran.customerName.userName + " : " + tran.ToString());
}
if (listPendingTransactionsDialog.Display() == DialogReturn.Done)
{
return;
}
// select button is pressed
while (true)
{
try
{ // to capture an exception from SelectedItem/SelectedTransaction of showPendingTransactionDialog
showPendingTransactionDialog.ClearDisplayItems();
//showPendingTransactionDialog.AddDisplayItems(null); // null is a dummy argument
BookShopControl.listTransactionDetails((SelectDialog)showPendingTransactionDialog, BookShopControl.listOfPendingTransactions[listPendingTransactionsDialog.SelectedIndex]);
switch (showPendingTransactionDialog.Display())
{
case DialogReturn.Approve: // Transaction Processed
// XXX
BookShopControl.approveTransaction(BookShopControl.listOfPendingTransactions[listPendingTransactionsDialog.SelectedIndex]);
if (BookShopControl.amountOfPendingTransactions <= 0)
{
return;
}
break;
case DialogReturn.ReturnBook: // Return Book
// XXX
BookShopControl.listOfPendingTransactions[listPendingTransactionsDialog.SelectedIndex].
removeSubTransaction(BookShopControl.listOfPendingTransactions[listPendingTransactionsDialog.SelectedIndex].itemsPurchased[showPendingTransactionDialog.SelectedIndex].purchaseBook.isbn, 1);
continue;
case DialogReturn.Remove: // Remove transaction
// XXX
BookShopControl.removeTransactionFromPending(BookShopControl.listOfPendingTransactions[listPendingTransactionsDialog.SelectedIndex]);
break;
}
break; //for "transaction processed"
}
catch (BookShopException bsex)
{
MessageBox.Show(this, bsex.ErrorMessage);
return;
}
}
}
catch (BookShopException bsex)
{
MessageBox.Show(this, bsex.ErrorMessage);
continue;
}
}
}