BeforeDropDown Event (UltraComboEditorColumn)

Fired before the dropdown list is displayed.

Syntax

Visual Basic

'Declaration
 
Public Event BeforeDropDown As CancelEventHandler

C#

public event CancelEventHandler BeforeDropDown

Event Data

The event handler receives an argument of type CancelEventArgs containing data related to this event. The following CancelEventArgs properties provide information specific to this event.

Property	Description
Cancel

Remarks

The BeforeDropDown event can be canceled; when this happens, the dropdown list is not displayed, and the AfterDropDown event does not fire.

Requirements

Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2