private void cSelectRestExpendComboBox_SelectedIndexChanged(object sender, EventArgs e)
{
Restaurant r = _rest.GetRestaurant(cSelectRestExpendComboBox.Text);
if (!Equals(r, null))
{
double expenses = _rest.CalcRestExp(r.RestaurantID);
cRestExpendResultsTextBox.Text = "$" + string.Format("{0:0.00}", expenses);
}
}
