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ToolStripDropDownMenu Constructor

ToolStripDropDownMenu Constructor

Initializes a new instance of the ToolStripDropDownMenu class.

Namespace:  System.Windows.Forms
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)

public ToolStripDropDownMenu()

The following code example demonstrates how to create and initialize a ContextMenuStrip control. For a full code listing, see How to: Enable Check Margins and Image Margins in ContextMenuStrip Controls.

// This utility method creates a ContextMenuStrip control 
// that has four ToolStripMenuItems showing the four  
// possible combinations of image and check margins. 
internal ContextMenuStrip CreateCheckImageContextMenuStrip()
{
    // Create a new ContextMenuStrip control.
    ContextMenuStrip checkImageContextMenuStrip = new ContextMenuStrip();

    // Create a ToolStripMenuItem with a 
    // check margin and an image margin.
    ToolStripMenuItem yesCheckYesImage = 
        new ToolStripMenuItem("Check, Image");
    yesCheckYesImage.Checked = true;
    yesCheckYesImage.Image = CreateSampleBitmap();

    // Create a ToolStripMenuItem with no 
    // check margin and with an image margin.
    ToolStripMenuItem noCheckYesImage = 
        new ToolStripMenuItem("No Check, Image");
    noCheckYesImage.Checked = false;
    noCheckYesImage.Image = CreateSampleBitmap();

    // Create a ToolStripMenuItem with a 
    // check margin and without an image margin.
    ToolStripMenuItem yesCheckNoImage = 
        new ToolStripMenuItem("Check, No Image");
    yesCheckNoImage.Checked = true;

    // Create a ToolStripMenuItem with no 
    // check margin and no image margin.
    ToolStripMenuItem noCheckNoImage = 
        new ToolStripMenuItem("No Check, No Image");
    noCheckNoImage.Checked = false;

    // Add the ToolStripMenuItems to the ContextMenuStrip control.
    checkImageContextMenuStrip.Items.Add(yesCheckYesImage);
    checkImageContextMenuStrip.Items.Add(noCheckYesImage);
    checkImageContextMenuStrip.Items.Add(yesCheckNoImage);
    checkImageContextMenuStrip.Items.Add(noCheckNoImage);

    return checkImageContextMenuStrip;
}

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
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