Form.ContextMenu : Form « System.Windows.Forms « C# / C Sharp by API

1. C# / C Sharp by API
2. System.Windows.Forms
3. Form

Form.ContextMenu

 

using System;
using System.Drawing;
using System.Windows.Forms;
   
class ContextMenuDemo: Form
{
     MenuItem miColor;
   
     public static void Main()
     {
          Application.Run(new ContextMenuDemo());
     }
     public ContextMenuDemo()
     {
          EventHandler eh = new EventHandler(MenuColorOnClick);
   
          MenuItem[] ami = { new MenuItem("Black",   eh),
                             new MenuItem("Blue",    eh),
                             new MenuItem("Green",   eh),
                             new MenuItem("White",   eh) };
   
          foreach (MenuItem mi in ami)
               mi.RadioCheck = true;
   
          miColor = ami[3];
          miColor.Checked = true;
          BackColor = Color.FromName(miColor.Text);
   
          ContextMenu = new ContextMenu(ami);
     }
     void MenuColorOnClick(object obj, EventArgs ea)
     {
          miColor.Checked = false;
          miColor = (MenuItem) obj;
          miColor.Checked = true;
   
          BackColor = Color.FromName(miColor.Text);
     }
}

   
  

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