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IWindowsFormsEditorService.DropDownControl Method

Displays the specified control in a drop down area below a value field of the property grid that provides this service.

Namespace:  System.Windows.Forms.Design
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)
void DropDownControl(
	Control control
)

Parameters

control
Type: System.Windows.Forms.Control

The drop down list Control to open.

The EditValue method of a UITypeEditor can call this method to display a specified control in a drop down area over the property grid hosting the editor which uses this service.

When possible, the dimensions of the control will be maintained. If this is not possible due to the screen layout, the control may be resized. To ensure that the control resizes neatly, you should implement docking and anchoring, and possibly any resize event-handler update code. If the user performs an action that causes the drop down to close, the control will be hidden and disposed by garbage collection if there is no other stored reference to the control.

.NET Framework

Supported in: 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows Phone 8.1, Windows Phone 8, 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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