ToolStripDropDown.Show Method (Control, Point, ToolStripDropDownDirection)

Positions the ToolStripDropDown relative to the specified control at the specified location and with the specified direction relative to the parent control.

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

public void Show(
	Control control,
	Point position,
	ToolStripDropDownDirection direction


Type: System.Windows.Forms.Control

The control (typically, a ToolStripDropDownButton) that is the reference point for the ToolStripDropDown position.

Type: System.Drawing.Point

The horizontal and vertical location of the reference control's upper-left corner, in pixels.

Type: System.Windows.Forms.ToolStripDropDownDirection

One of the ToolStripDropDownDirection values.


The control specified by the control parameter is null.

The following code example demonstrates how to display the ToolStripDropDown control relative to the parent control.

// This method calls the ToolStripDropDown control's Show  
// method to display the ContextMenuStrip relative to the 
// owning control. 
private void button1_MouseUp(object sender, MouseEventArgs e)
    Control c = sender as Control;
    if (e.Button == MouseButtons.Right)
        this.contextMenuStrip1.Show(c, e.Location, this.dropDownDirection);

.NET Framework

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

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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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