Here is the sample

Hello,

If you need any additional assistance don’t hesitate to ask.

Regards

I used VB.net language.

Public Class CreatingUIElement

     Implements IUIElementCreationFilter

    Public Function BeforeCreateChildElements(ByVal parent As Infragistics.Win.UIElement) As Boolean Implements IUIElementCreationFilter.BeforeCreateChildElements

         Return False

     End Function

    Public Sub AfterCreateChildElements(ByVal parent As UIElement) Implements IUIElementCreationFilter.AfterCreateChildElements

        Dim oElement As QatQuickCustomizeToolUIElement = CType(parent, QatQuickCustomizeToolUIElement)

         If oElement IsNot Nothing Then

             oElement.Rect = New Rectangle(oElement.Rect.X, oElement.Rect.Y, 0, 0)

         End If

    End Sub

End Class

I tried this way.

But

" Dim oElement As QatQuickCustomizeToolUIElement = CType(parent, QatQuickCustomizeToolUIElement) "

the casting error appear this area.

Hi,

Please try the code below:

Public Class CreatingUIElement

                Implements IUIElementCreationFilter

                Public Sub AfterCreateChildElements(parent As UIElement)

                                Dim El As QatQuickCustomizeToolUIElement = TryCast(parent, QatQuickCustomizeToolUIElement)

                                If El IsNot Nothing Then

                                                El.Rect = New Rectangle(El.Rect.X, El.Rect.Y, 0, 0)

                                End If

                End Sub

                Public Function BeforeCreateChildElements(parent As UIElement) As Boolean

                                Return False

                End Function

End Class

Let me know if you have any questions.