Add ContextMenu to ListBox : ListBox : GUI Windows Forms C# Examples

    
using  System;
using  System.Drawing;
using  System.Collections;
using  System.ComponentModel;
using  System.Windows.Forms;
using  System.Data;

public  class  ListBoxContextMenu  :  System.Windows.Forms.Form
{
    private  System.Windows.Forms.Button  btnDone;
    private  System.Windows.Forms.TextBox  textBox1;
    private  System.Windows.Forms.Button  btnAdd;
    private  System.Windows.Forms.ListBox  listBox1;
    private  System.Windows.Forms.ContextMenu  contextMenu1;
    private  System.Windows.Forms.MenuItem  menuItem1;
    private  System.Windows.Forms.MenuItem  menuItem2;
    private  System.Windows.Forms.MenuItem  menuItem3;
    private  System.Windows.Forms.MenuItem  menuItem4;

    private  System.ComponentModel.Container  components  =  null;

    public  ListBoxContextMenu()
    {
        InitializeComponent();
    }

    protected  override  void  Dispose(  bool  disposing  )
    {
        if(  disposing  )
        {
            if  (components  !=  null)  
            {
                components.Dispose();
            }
        }
        base.Dispose(  disposing  );
    }

    #region  Windows  Form  Designer  generated  code
    private  void  InitializeComponent()
    {
        this.btnDone  =  new  System.Windows.Forms.Button();
        this.textBox1  =  new  System.Windows.Forms.TextBox();
        this.btnAdd  =  new  System.Windows.Forms.Button();
        this.listBox1  =  new  System.Windows.Forms.ListBox();
        this.contextMenu1  =  new  System.Windows.Forms.ContextMenu();
        this.menuItem1  =  new  System.Windows.Forms.MenuItem();
        this.menuItem2  =  new  System.Windows.Forms.MenuItem();
        this.menuItem3  =  new  System.Windows.Forms.MenuItem();
        this.menuItem4  =  new  System.Windows.Forms.MenuItem();
        this.SuspendLayout();
        //  
        //  btnDone
        //  
        this.btnDone.Location  =  new  System.Drawing.Point(208,  16);
        this.btnDone.Name  =  "btnDone";
        this.btnDone.TabIndex  =  3;
        this.btnDone.Text  =  "Done";
        this.btnDone.Click  +=  new  System.EventHandler(this.btnDone_Click);
        //  
        //  textBox1
        //  
        this.textBox1.Location  =  new  System.Drawing.Point(16,  88);
        this.textBox1.Name  =  "textBox1";
        this.textBox1.TabIndex  =  5;
        this.textBox1.Text  =  "";
        //  
        //  btnAdd
        //  
        this.btnAdd.Location  =  new  System.Drawing.Point(16,  120);
        this.btnAdd.Name  =  "btnAdd";
        this.btnAdd.TabIndex  =  6;
        this.btnAdd.Text  =  "Add";
        this.btnAdd.Click  +=  new  System.EventHandler(this.btnAdd_Click);
        //  
        //  listBox1
        //  
        this.listBox1.ContextMenu  =  this.contextMenu1;
        this.listBox1.Location  =  new  System.Drawing.Point(16,  8);
        this.listBox1.Name  =  "listBox1";
        this.listBox1.Size  =  new  System.Drawing.Size(120,  69);
        this.listBox1.TabIndex  =  7;
        //  
        //  contextMenu1
        //  
        this.contextMenu1.MenuItems.AddRange(new  System.Windows.Forms.MenuItem[]  {
              this.menuItem1,
              this.menuItem2,
              this.menuItem3,
              this.menuItem4});
        //  
        //  menuItem1
        //  
        this.menuItem1.Index  =  0;
        this.menuItem1.Text  =  "Move  Down";
        this.menuItem1.Click  +=  new  System.EventHandler(this.ctxtMenuClick);
        //  
        //  menuItem2
        //  
        this.menuItem2.Index  =  1;
        this.menuItem2.Text  =  "Move  up";
        this.menuItem2.Click  +=  new  System.EventHandler(this.ctxtMenuClick);
        //  
        //  menuItem3
        //  
        this.menuItem3.Index  =  2;
        this.menuItem3.Text  =  "Delete";
        this.menuItem3.Click  +=  new  System.EventHandler(this.ctxtMenuClick);
        //  
        //  menuItem4
        //  
        this.menuItem4.Index  =  3;
        this.menuItem4.Text  =  "Duplicate";
        this.menuItem4.Click  +=  new  System.EventHandler(this.ctxtMenuClick);
        //  
        //  ListBoxContextMenu
        //  
        this.AutoScaleBaseSize  =  new  System.Drawing.Size(5,  13);
        this.ClientSize  =  new  System.Drawing.Size(292,  266);
        this.Controls.AddRange(new  System.Windows.Forms.Control[]  {
                this.listBox1,
                this.btnAdd,
                this.textBox1,
                this.btnDone});
        this.Name  =  "ListBoxContextMenu";
        this.ResumeLayout(false);

    }
    #endregion

    [STAThread]
    static  void  Main()  
    {
        Application.Run(new  ListBoxContextMenu());
    }

    private  void  btnDone_Click(object  sender,  System.EventArgs  e)
    {
        Application.Exit();
    }

    private  void  btnAdd_Click(object  sender,  System.EventArgs  e)
    {
        listBox1.Items.Add(textBox1.Text);
        textBox1.Text  =  "";
    }

    private  void  ctxtMenuClick(object  sender,  System.EventArgs  e)
    {
        if  (  listBox1.SelectedIndex  !=  -1  )
        {
            MenuItem  mi  =  (MenuItem)  sender;
            MessageBox.Show(mi.Text  +  "  on  "  +  listBox1.SelectedItem,"Context  Menu",  MessageBoxButtons.OK,  MessageBoxIcon.Asterisk);
        }else{
            MessageBox.Show("Please  select  an  item","Context  Menu  Tester",  MessageBoxButtons.OK,  MessageBoxIcon.Asterisk);

        }
    }
}