Book Control slow performance

[Mike Tovbin]

Hi, I am using Silverlight 3 Book control version 2010.1.309.1030.  There seems to be a delay in animation when turning the book pages. I don't get this delay when I try your demo. To be certain I created a separate solution with a single page that contains the following xaml and I get the same delayed animation when turning pages.

<UserControl x:Class="SilverlightApplicationBook.MainPage"
           xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
   xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
   xmlns:telerikNavigation="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls.Navigation">
    <Grid x:Name="LayoutRoot" Background="Purple">
        <telerikNavigation:RadBook Margin="50">
            <telerikNavigation:RadBookItem Background="Red">
                <TextBlock Text="Page 1" FontSize="36"/>
            </telerikNavigation:RadBookItem>
            <telerikNavigation:RadBookItem Background="BlueViolet">
                <TextBlock Text="Page 2" HorizontalAlignment="Right" FontSize="36"/>
            </telerikNavigation:RadBookItem>
            <telerikNavigation:RadBookItem Background="RosyBrown">
                <TextBlock Text="Page 3" FontSize="36"/>
            </telerikNavigation:RadBookItem>
            <telerikNavigation:RadBookItem Background="Chocolate">
                <TextBlock Text="Page 4" HorizontalAlignment="Right" FontSize="36"/>
            </telerikNavigation:RadBookItem>
        </telerikNavigation:RadBook>
    </Grid>
</UserControl>

Thank You,
Mike

[Kiril Stanoev]

Hi Mike,

Have you installed the Silverlight 4 plugin? If that is the case, I'd suggest you download 422 version of our controls where the animation issue has been fixed. Give it a try and let me know how it goes.

Regards,
Kiril Stanoev
the Telerik team

Do you want to have your say when we set our development plans? Do you want to know when a feature you care about is added or when a bug fixed? Explore the Telerik Public Issue Tracking system and vote to affect the priority of the items.

[David Moreau]

Hi! I have a similar problem with the radbook. If I use the same code as above, the animation is delayed or "choppy". I'm using the Silverlight 4 controls from August 2010.

[Kiril Stanoev]

Hello David,

We are not aware of any existing performance issues. I've recorded a video demonstrating the above scenario. Please find attached a sample test project as well as a video recording. Have a look at it and let me know how I can be of further assistance.

Best wishes,
Kiril Stanoev
the Telerik team

[David Moreau]

Thanks for answering. I tested the attached solution. While the performance is slightly bettre than my own project, it's still not as good as in your video. I tested my problem on two computers with completly different hardware profile but the result is the same...

One thing I don't understand, when I run the RadBook from your demo section, it runs perfectly smooth, but not the control to it's most basic form.

[Kiril Stanoev]

Hi David,

Could you please try and isolate the issue in a separate project and send us this project. This way we will be better able to assist you. Also it would be great if you can record a video showing the performance issue you experience on your end.

Greetings,
Kiril Stanoev
the Telerik team

[David Moreau]

Yes I can,

Is there an adresse where I can upload the files? I have a video and a project but I can only attach image to this forum.

[Kiril Stanoev]

Hi David,

You can try http://photobucket.com/ or http://www.techsmith.com/jing/. Also, could you please share the project you are using withing the video.

Sincerely yours,
Kiril Stanoev
the Telerik team

[David Moreau]

I tracked down the issue. It has nothing to do with your control. When I run the website on battery on my laptop, it runs fine. When I plug it, I have a lag. I don't understand it yet, but the issue is probably hardware related.

Sorry I bothered you with that and thanks for you assistance.