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Posted 22 Sep 2010

Synchronize ListBoxes easy

, 22 Sep 2010 CPOL
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An easy answer;
I find out an easy way for Silverlight 4 to synchronize two ListBox or any that has a ScrollContentPresenter

I started with silverlightdatagridscroll article I modified the method GetScrollBar to this:

public ScrollContentPresenter GetScrollPresenter(DependencyObject dep)
            for (int i = 0; i < VisualTreeHelper.GetChildrenCount(dep); i++)
                var child = VisualTreeHelper.GetChild(dep, i);
                if (child != null && child is ScrollContentPresenter)
                    return child as ScrollContentPresenter;
                    ScrollContentPresenter sub = GetScrollPresenter(child);
                    if (sub != null)
                        return sub;
            return null;

Now, I implemented the following in my code:

GetScrollPresenter(scrollViewer0).LayoutUpdated += (s1, e1) =>
        if(GetScrollPresenter(scrollViewer1)!=null && GetScrollPresenter(scrollViewer0) !=null)

And the last thing, in my case I have the following in the XAML:

<ScrollViewer Padding="10" x:Name="scrollViewer0" Style="{StaticResource PageScrollViewerStyle}" Margin="10">
            <ListBox x:Name="SourceList" Background="#FFE8F8FF" />



This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


About the Author

Juan Pablo G.C.
Software Developer Expediteapps
Spain Spain
I'm Electronic Engineer, I did my end degree project at Astrophysical Institute and Tech Institute. I'm HP Procurve AIS and ASE ,Microsoft 3.5 MCTS
I live in Canary Islands ,developing customized solutions

Deeply involved in Xamarin Forms LOB (including Azure Cloud with offline support, custom controls, dependencies) projects, WP8.1 & W10 projects, WPF modern styled projects. Portable libraries like portablePDF, portableOneDrive, portableReports and portablePrinting (using Google Printing API).

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