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ToolStripDropDownItem.ShowDropDown Method

Displays the ToolStripDropDownItem control associated with this ToolStripDropDownItem.

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

public void ShowDropDown()

ExceptionCondition
InvalidOperationException

The ToolStripDropDownItem is the same as the parent ToolStrip.

Use the ShowDropDown method to display the drop-down controls that have been set by the DropDown property.

The following code example demonstrates how to show a ToolStripDropDownItem control when a button is pressed. This code example is part of a larger example provided for the ToolStripDropDownItem class.


// This method shows the drop-down for the first item
// in the form's ToolStrip.
private void showButton_Click(object sender, EventArgs e)
{
    ToolStripDropDownItem item = this.toolStrip1.Items[0] as ToolStripDropDownItem;

    if (item.HasDropDownItems)
    {
        item.ShowDropDown();
    }
}


.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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