public static ExpenseItemRoster ReadFromFile(string filename)
{
ExpenseItemRoster deserializedexpenses = null;
try
{
BinaryFormatter formatter = new BinaryFormatter();
FileStream stream = new FileStream(filename, FileMode.Open, FileAccess.Read, FileShare.Read);
deserializedexpenses = (ExpenseItemRoster)formatter.Deserialize(stream);
stream.Close();
}
catch (Exception)
{ return(null); }
return(deserializedexpenses);
}
public ExpenseRecorder()
{
InitializeComponent();
// Adding List of values for Payment Method Drop Down
comboBoxPayment.Items.Add("Cash");
comboBoxPayment.Items.Add("Cheque");
comboBoxPayment.Items.Add("myDiscover");
comboBoxPayment.Items.Add("myVisa");
comboBoxPayment.Items.Add("myMaster");
comboBoxPayment.Items.Add("myAmericanExpress");
// Adding List of values for Expense Trip Drop Down
comboBoxTrip.Items.Add("Australia Sale meeting");
comboBoxTrip.Items.Add("Australia Conference");
comboBoxTrip.Items.Add("Chicago Sale meeting");
comboBoxTrip.Items.Add("Chicago Conference");
comboBoxTrip.Items.Add("Denver Sale meeting");
comboBoxTrip.Items.Add("Denver Conference");
comboBoxTrip.Items.Add("New York Sale meeting");
comboBoxTrip.Items.Add("New York Conference");
comboBoxTrip.Items.Add("Orlando Sale meeting");
comboBoxTrip.Items.Add("Orlando Conference");
comboBoxTrip.Items.Add("Local sales call");
comboBoxTrip.Items.Add("Emergency customer call");
comboBoxTrip.Items.Add("Sales Material purchase");
// Adding List of values for Filter Drop Down
comboBoxFilter.Items.Add("All");
comboBoxFilter.Items.Add("Trip");
comboBoxFilter.Enabled = true;
textBoxTotalExepense.Enabled = false;
buttonCloseOut.Enabled = false;
OpenFileDialog openFileDialog = new OpenFileDialog();
openFileDialog.InitialDirectory = "c:\\";
openFileDialog.Filter = "BIN files (*.bin)|*.BIN";
openFileDialog.FilterIndex = 1;
openFileDialog.RestoreDirectory = true;
openFileDialog.CheckFileExists = true;
openFileDialog.Title = "Select Expenses Data File";
fileName = null;
if (openFileDialog.ShowDialog() == DialogResult.OK)
{
fileName = openFileDialog.FileName;
roster = ExpenseItemRoster.ReadFromFile(fileName);
}
else
{
roster = new ExpenseItemRoster();
}
LoadExpensesList();
textBoxTotalExepense.Text = roster.TotalAmount().ToString("C");
dateTimePickerExpense.Enabled = false;
textBoxAmount.Enabled = true;
}
