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ToolStrip.BeginDrag Event

Note: This event is new in the .NET Framework version 2.0.

Occurs when the user begins to drag the ToolStrip control.

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

public event EventHandler BeginDrag
/** @event */
public void add_BeginDrag (EventHandler value)

/** @event */
public void remove_BeginDrag (EventHandler value)

JScript supports the use of events, but not the declaration of new ones.

For more information about handling events, see Consuming Events.

The following code example demonstrates the use of BeginDrag and EndDrag with a ToolStrip and a ToolStripContainer.

using System;
using System.Windows.Forms;

public class Form1 : Form
{
    private ToolStripContainer toolStripContainer1;
    private ToolStrip toolStrip1;
    private RichTextBox richTextBox1;
 
    public Form1()
    {
        DragToolStrip();
    }
    [STAThread]
    static void Main()
        {
            Application.EnableVisualStyles();
            Application.Run(new Form1());
        }

        private void DragToolStrip()
        {
        // Create a ToolStripContainer.
        toolStripContainer1 = new System.Windows.Forms.ToolStripContainer();
        toolStripContainer1.Dock = System.Windows.Forms.DockStyle.Fill;
        Controls.Add(toolStripContainer1);

        // Create a ToolStrip and add items to it.
        toolStrip1 = new System.Windows.Forms.ToolStrip();
        toolStrip1.Items.Add("One");
        toolStrip1.Items.Add("Two");
        toolStrip1.Items.Add("Three");
            
        // Add the ToolStrip to the top panel of the ToolStripContainer.
        toolStripContainer1.TopToolStripPanel.Controls.Add(toolStrip1);
            
        // Create a RichTextBox and add it to the ContentPanel.
        richTextBox1 = new System.Windows.Forms.RichTextBox();
        richTextBox1.Location = new System.Drawing.Point(94, 61);
        toolStripContainer1.ContentPanel.Controls.Add(richTextBox1);

        // Attach event handlers for the BeginDrag and EndDrag events.
        toolStrip1.BeginDrag += new System.EventHandler(toolStrip1_BeginDrag);
        toolStrip1.EndDrag += new System.EventHandler(toolStrip1_EndDrag);
    }
    // Clear any text from the RichTextBox when a drag operation begins.
    private void toolStrip1_BeginDrag(object sender, EventArgs e)
    {
        richTextBox1.Text = "";
    }
    // Notify the user when the drag operation ends.
    private void toolStrip1_EndDrag(object sender, EventArgs e)
    {
        richTextBox1.Text="The drag operation is complete.";
    }
}

Windows 98, Windows 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 .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.

.NET Framework

Supported in: 2.0

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