DropDownOpened Event
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ToolStripDropDownItem.DropDownOpened Event


Occurs when the ToolStripDropDown has opened.

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

public event EventHandler DropDownOpened

This event occurs when the user clicks the drop down item or when you call the ShowDropDown method. You can use this event to dynamically populate the ToolStripDropDown.

For more information about handling events, see Handling and Raising Events.

The following code example demonstrates how to handle the DropDownOpened event for multiple ToolStripDropDownItem controls. This code example is part of a larger example provided for the ToolStripDropDownItem class.

// This method handles the DropDownOpened event from a 
// ToolStripDropDownItem. It displays the value of the 
// item's Text property in the form's StatusStrip control.
void toolStripDropDownItem_DropDownOpened(object sender, EventArgs e)
    ToolStripDropDownItem item = sender as ToolStripDropDownItem;

    string msg = String.Format("Item opened: {0}", item.Text);
    this.toolStripStatusLabel1.Text = msg;

.NET Framework
Available since 2.0
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