VisualTreeHelper is not working

[Sandro]

Hi

I have this function to get the parent of the control. When I use it on RadGridview, the return is nothing.
Do you have any idea?


Public Function GetParentObject(Of T As FrameworkElement)(ByVal obj As DependencyObject, Optional ByVal name As String = "") As T

    Dim parent As DependencyObject = VisualTreeHelper.GetParent(obj)

    While parent IsNot Nothing

        If TypeOf parent Is T AndAlso (CType(parent, T).Name = name Or String.IsNullOrEmpty(name)) Then Return CType(parent, T)

        parent = VisualTreeHelper.GetParent(parent)

 

    End While

    Return Nothing

End Function

[Dimitrina]

Hello,

I have defined a 'GridView' inside 'Grid' Inside 'MainPage'. When I executed the GetParent() method of the VisualTreeHelper , I got the right parent.

What are the parents of your control? Why do you not use the ParentOfType extension method?

Kind regards,
Didie
the Telerik team

[Sandro]

Hi

Here are the parents of the gridview on my control.

UserControl > Grid (LayoutRoot) > Popup > Grid

Do you have code on using ParentOfType extension method if this can solve the problem?


Thank you in advance for the answer.

[Dimitrina]

Hello,

 
The ParentOfType method get the parent element from the visual tree by given type. For example: 

Popup parent = clubsGrid.ParentOfType<Grid>().ParentOfType<Popup>();

Kind regards,
Didie
the Telerik team

[Sandro]

Hi

Thank you for a quick reply.

I already tried your code but still returns nothing.

Many Thanks