private void DeSelected(System.Object sender, System.EventArgs e)
{
Employee waiter = default(Employee);
Button button = default(Button);
int whichShift = 0;
button = (Button)sender;
System.Windows.Forms.DialogResult response = default(System.Windows.Forms.DialogResult);
response = MessageBox.Show("Are you sure you want to de-select? ", "De-Select Shift", MessageBoxButtons.YesNo);
//1.***Allow the manager to decide whether he really wants to change
if (response == System.Windows.Forms.DialogResult.Yes)
{
//2.***Swap the Dynamic event handling routines
button.Click -= DeSelected;
button.Click += SlotSelected;
//3.***Use the AccessibleNamefield of the button to store the employee ID
waiter = employeeController.Find(button.AccessibleName);
//4.***Add the waitron back to the combobox if it was already taken out
if (shiftController.GetShiftCount(waiter) == 5)
{
waitersComboBox.Items.Add(waiter);
eventsMessageLabel.Visible = false;
}
//5.***Find the right shift and remove the waitron from that shift
whichShift = (Convert.ToInt32(button.Tag) / 6) * 2 + (Convert.ToInt32(button.Tag) % 6) / 3;
shiftController.RemoveEmployeeFromShift(whichShift, waiter);
//6***Reset the blocks to what it looked like BEFORE it was selected
button.Text = "";
button.AccessibleName = "";
if (whichShift % 2 == 0)
{
button.BackColor = Color.LightGoldenrodYellow;
}
else
{
button.BackColor = Color.Turquoise;
}
}
}