DropDownOpened Event (AutoCompleteTextBox)

This event is raised when the AutoCompleteTextBox's Popup is opened to display the items taken from the ItemsSource once they've been filtered.

Syntax

Visual Basic
C#

'Declaration
 
Public Event DropDownOpened As EventHandler(Of EventArgs)

'Usage
 
Dim instance As AutoCompleteTextBox
Dim handler As EventHandler(Of EventArgs)
 
AddHandler instance.DropDownOpened, handler

public event EventHandler<EventArgs> DropDownOpened

Requirements

Target Platforms: Windows 11, Windows 10, 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

Reference

AutoCompleteTextBox Class
AutoCompleteTextBox Members