GridView touch scrolling

8 posts, 0 answers
  1. Szymon
    Szymon avatar
    7 posts
    Member since:
    Jun 2012

    Posted 24 Nov 2012 Link to this post

    I have a problem with touch scrolling in RadGridView on production machine (analog resistive touchscreen).
    On test environment (W8 Simulator) touch scrolling is ok. After installed this same application on production machine - RadGridView starts lag on scrolling.

    Touch scrolling in W8 Simulator: http://www.youtube.com/watch?v=56-xueO9MOU
    Touch scrolling on production machine: http://www.youtube.com/watch?v=9grjiZq4kQc

    <telerik:RadGridView x:Name="ArchivGridView"
        Grid.Row="1"
        HorizontalAlignment="Stretch"
        VerticalAlignment="Stretch"
        AutoGenerateColumns="False"
        CanUserDeleteRows="False"
        CanUserInsertRows="False"
        IsReadOnly="True"
        ItemsSource="{Binding Path=PagedSource,
        ElementName=Pager}"
        EnableRowVirtualization="True"
        PreviewMouseDoubleClick="ArchivGridView_OnPreviewMouseDoubleClick"
        RowDetailsTemplate="{StaticResource RowDetails}">
    </telerik:RadGridView>
    <telerik:RadDataPager x:Name="Pager"
        PageSize="50"
        Grid.Row="2"
        AutoEllipsisMode="Both"
        Source="{Binding Path=MeasuresView}" />

    Any suggestions?

    Everything is ok, when i use mouse for scroll.

  2. Vlad
    Admin
    Vlad avatar
    11100 posts

    Posted 26 Nov 2012 Link to this post

    Hello,

     Can you post more info about the grid version at your end?

    Regards,
    Vlad
    the Telerik team

    Explore the entire Telerik portfolio by downloading Telerik DevCraft Ultimate.

  3. Szymon
    Szymon avatar
    7 posts
    Member since:
    Jun 2012

    Posted 26 Nov 2012 Link to this post

    RadGridView from official 2012 Q3 version.
  4. Pavel Pavlov
    Admin
    Pavel Pavlov avatar
    2039 posts

    Posted 26 Nov 2012 Link to this post

    Hi,
    Thanks for reporting the issue! I am going to treat that as a bug. We are trying to reproduce the problem right now . So far our tests went good , however I believe the problem would be exposed on slower machines.

    Can you give us the specs on the machine where scrolling lags( e.g. processor speed , RAM , video ) , so we can perform tests with a similar machine and make sure the problem is fixed.

    We are in the process of improving touch support right now so the issue will be addressed with high priority.

    Regards,
    Pavel Pavlov
    the Telerik team

    Explore the entire Telerik portfolio by downloading Telerik DevCraft Ultimate.

  5. Szymon
    Szymon avatar
    7 posts
    Member since:
    Jun 2012

    Posted 27 Nov 2012 Link to this post

    Thanks for your quick reply!

    Yes machine is slow, but only touch scrolling lags. Here are specification:
    Processor: E6500 - Pentium Dual-Core E6500 2,93GHz LGA
    RAM: 4GB (DDR3)
    Graphics: Intel Extreme Graphics 2 for 2D/3D video accelerator (Intel 915GM 128MB).
    System: Windows 7
    Full spec: http://support.elmark.com.pl/advantech/pdf/IPPC-6152man.pdf

    Regards,
    Szymon
  6. Pavel Pavlov
    Admin
    Pavel Pavlov avatar
    2039 posts

    Posted 28 Nov 2012 Link to this post

    Hi,

    A quick update  - we were able to reproduce the problem  and we are already working on a fix .  I am going to notify you once we have a descent solution.  Meanwhile I am updating your Telerik points.
    Thanks for the valuable feedback !

    Kind regards,
    Pavel Pavlov
    the Telerik team

    Explore the entire Telerik portfolio by downloading Telerik DevCraft Ultimate.

  7. Szymon
    Szymon avatar
    7 posts
    Member since:
    Jun 2012

    Posted 30 Mar 2013 Link to this post

    Hi,

    Can I please for a quick report about state of this issue?
  8. Yordanka
    Admin
    Yordanka avatar
    634 posts

    Posted 01 Apr 2013 Link to this post

    Hello Szymon,

    We improved our touch support with Q1 2013 version. Could you test your solution with Q1 2013 binaries? You can also test the touch scrolling on our demos. Please let me know about the result.
     
    All the best,
    Yordanka
    the Telerik team

    Explore the entire Telerik portfolio by downloading Telerik DevCraft Ultimate.

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