private void lastButton_Click(object sender, EventArgs e)
{
//Populates all text boxes, check box and data time picker with last record and also updates text box txtOrder to current position.
CarsBindingSource.MoveLast();
updatePosition();
}
private void addButton_Click(object sender, EventArgs e)
{
try
{
//Adding a new row.
//Populating column VehicleRegNo because it can't be empty, and column Available with 0 (False) because it's by default set to True.
DataRow row = hireDataSet1.tblCar.NewRow();
row["VehicleRegNo"] = "Regis";
row["Available "] = 0;
hireDataSet1.tblCar.Rows.Add(row);
//Row is added to last place, so this is going to show that record.
CarsBindingSource.MoveLast();
updatePosition();
}
//If there is already row with the same value for column VehicleRegNo this message appear on screen.
//Column VehicleRegNo is a primary key and it must be unique.
catch (ConstraintException)
{
MessageBox.Show("Vehicle Registration Number 'Regis' already exist");
}
}
private void cancelButton_Click(object sender, EventArgs e)
{
//Cancels all changes.
hireDataSet1.RejectChanges();
CarsBindingSource.ResetBindings(false);
updatePosition();
}
