Get datagrid's scrollviewer

Question

I\'m trying to get the datagrid\'s scrollviewer to be able to set the offset (which has been stored earlier).

I use this function :

public static T G         


        

Answer 1

You need to go recursive through the VisualTree elements. Your function only looks at DataGrid layer. If the ScrollViewer isn't there (see picture) you will not find it.

Try the following function:

public static ScrollViewer GetScrollViewer(UIElement element)
{
    if (element == null) return null;

    ScrollViewer retour = null;
    for (int i = 0; i < VisualTreeHelper.GetChildrenCount(element) && retour == null; i++) {
        if (VisualTreeHelper.GetChild(element, i) is ScrollViewer) {
            retour = (ScrollViewer) (VisualTreeHelper.GetChild(element, i));
        }
        else {
            retour = GetScrollViewer(VisualTreeHelper.GetChild(element, i) as UIElement);
        }
    }
    return retour;
}