FT豹豹哥，你给“鼠标左键，弹出contextMenu”的程序

由于没有IDE环境，所以程序就尽量简单了

不说了，你看程序吧

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

class useonpaint:Form
{
    public useonpaint()
    {;}
    
    static void Main()
    {
        Application.Run(new useonpaint());
    }
    
    protected override void OnMouseUp(MouseEventArgs e)
    {
          if (e.Button == MouseButtons.Left)    test(e);
          
      }
    private void test(MouseEventArgs e)
    {
        ContextMenu m = new ContextMenu();
           this.ContextMenu= m;

           // Create MenuItem objects.
        MenuItem menuItem1 = new MenuItem();
           MenuItem menuItem2 = new MenuItem();
         
           // Set the Text property.
           menuItem1.Text = "New";
        menuItem2.Text = "Open";

        // Add menu items to the MenuItems collection.
        m.MenuItems.Add(menuItem1);
        m.MenuItems.Add(menuItem2);
        
            
        Point position = new Point(e.X, e.Y);
           m.Show(this,position);
     }
}

原文转自：http://www.ltesting.net