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ToolStripDropDownItem.DropDownItems Property

Gets the collection of items in the ToolStripDropDown that is associated with this ToolStripDropDownItem.

Namespace: System.Windows.Forms
Assembly: System.Windows.Forms (in system.windows.forms.dll)

public ToolStripItemCollection DropDownItems { get; }
/** @property */
public ToolStripItemCollection get_DropDownItems ()

public function get DropDownItems () : ToolStripItemCollection

Not applicable.

Property Value

A ToolStripItemCollection of controls.

Use the DropDownItems property to get all the items in the ToolStripDropDown that is referred to by the DropDown property.

The following code example demonstrates how to use the DropDownItems property to create a menu with sub-menus. For the complete code example, see How to: Display Option Buttons in a MenuStrip (Windows Forms).

public class Form1 : Form
{
    private MenuStrip menuStrip1 = new MenuStrip();
    private ToolStripMenuItem mainToolStripMenuItem = new ToolStripMenuItem();
    private ToolStripMenuItem toolStripMenuItem1 = new ToolStripMenuItem();
    private ToolStripRadioButtonMenuItem toolStripRadioButtonMenuItem1 = 
        new ToolStripRadioButtonMenuItem();
    private ToolStripRadioButtonMenuItem toolStripRadioButtonMenuItem2 = 
        new ToolStripRadioButtonMenuItem();
    private ToolStripRadioButtonMenuItem toolStripRadioButtonMenuItem3 = 
        new ToolStripRadioButtonMenuItem();
    private ToolStripRadioButtonMenuItem toolStripRadioButtonMenuItem4 = 
        new ToolStripRadioButtonMenuItem();
    private ToolStripRadioButtonMenuItem toolStripRadioButtonMenuItem5 = 
        new ToolStripRadioButtonMenuItem();
    private ToolStripRadioButtonMenuItem toolStripRadioButtonMenuItem6 = 
        new ToolStripRadioButtonMenuItem();

    public Form1()
    {
        mainToolStripMenuItem.Text = "main";
        toolStripRadioButtonMenuItem1.Text = "option 1";
        toolStripRadioButtonMenuItem2.Text = "option 2";
        toolStripRadioButtonMenuItem3.Text = "option 2-1";
        toolStripRadioButtonMenuItem4.Text = "option 2-2";
        toolStripRadioButtonMenuItem5.Text = "option 3-1";
        toolStripRadioButtonMenuItem6.Text = "option 3-2";
        toolStripMenuItem1.Text = "toggle";
        toolStripMenuItem1.CheckOnClick = true;

        mainToolStripMenuItem.DropDownItems.AddRange(new ToolStripItem[] {
            toolStripRadioButtonMenuItem1, toolStripRadioButtonMenuItem2,
            toolStripMenuItem1});
        toolStripRadioButtonMenuItem2.DropDownItems.AddRange(
            new ToolStripItem[] {toolStripRadioButtonMenuItem3, 
            toolStripRadioButtonMenuItem4});
        toolStripMenuItem1.DropDownItems.AddRange(new ToolStripItem[] {
            toolStripRadioButtonMenuItem5, toolStripRadioButtonMenuItem6});

        menuStrip1.Items.AddRange(new ToolStripItem[] {mainToolStripMenuItem});
        Controls.Add(menuStrip1);
        MainMenuStrip = menuStrip1;
        Text = "ToolStripRadioButtonMenuItem demo";
    }
}

static class Program
{
    [STAThread]
    static void Main()
    {
        Application.EnableVisualStyles();
        Application.SetCompatibleTextRenderingDefault(false);
        Application.Run(new Form1());
    }
}

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0

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