RadioCheck MenuItem

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using System;
using System.Drawing;
using System.Windows.Forms;

class CheckAndRadioCheck: Form
{
MenuItem miColor, miFill;

public static void Main()
{
Application.Run(new CheckAndRadioCheck());
}
public CheckAndRadioCheck()
{
ResizeRedraw = true;

string[] astrColor = {“Black”, “Blue”, “Green”, “Cyan”,
“Red”, “Magenta”, “Yellow”, “White”};
MenuItem[] ami = new MenuItem[astrColor.Length + 2];
EventHandler ehColor = new EventHandler(MenuFormatColorOnClick);

for (int i = 0; i < astrColor.Length; i++) { ami[i] = new MenuItem(astrColor[i], ehColor); ami[i].RadioCheck = true; } miColor = ami[0]; miColor.Checked = true; ami[astrColor.Length] = new MenuItem("-"); miFill = new MenuItem("&Fill",new EventHandler(MenuFormatFillOnClick)); ami[astrColor.Length + 1] = miFill; MenuItem mi = new MenuItem("&Format", ami); Menu = new MainMenu(new MenuItem[] {mi}); } void MenuFormatColorOnClick(object obj, EventArgs ea) { miColor.Checked = false; miColor = (MenuItem)obj; miColor.Checked = true; Invalidate(); } void MenuFormatFillOnClick(object obj, EventArgs ea) { MenuItem mi = (MenuItem)obj; mi.Checked ^= true; Invalidate(); } protected override void OnPaint(PaintEventArgs pea) { if (miFill.Checked) { Console.WriteLine("fill"); } else { Console.WriteLine("not fill"); } } } [/csharp]