'Declaration
 
<ExtensionAttribute()>
Public Overloads Shared Function ShowDialog( _
   ByVal window As Window, _
   ByVal content As Object, _
   ByVal closingEventHandler As DialogClosingEventHandler _
) As Task(Of Object)

'Usage
 
Dim window As Window
Dim content As Object
Dim closingEventHandler As DialogClosingEventHandler
Dim value As Task(Of Object)
 
value = DialogHostEx.ShowDialog(window, content, closingEventHandler)

[Extension()]
public static Task<object> ShowDialog( 
   Window window,
   object content,
   DialogClosingEventHandler closingEventHandler
)

Parameters

window

content

closingEventHandler

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

DialogHostEx Class
DialogHostEx Members
Overload List