Trackball issue

7 posts, 0 answers
  1. Pirjo
    Pirjo avatar
    10 posts
    Member since:
    Mar 2013

    Posted 12 Jun 2013 Link to this post

    Hi,

    I have a strange problem with trackballs. It happens when the chartview has multiple y-axis and multiple types of series (e.g. line series and bar series). The problem is that the trackball shows only for one or two categories starting from the left. I have attached a picture, in which there is a chartview with four categories, three series and two y-axis. In this case the trackball shows for the first two categories only. When I move the mouse over the third or fourth category, no trackball appears.

    This problem seems to have something to do with two things:
    1.) the order the different serie types are added to the chartview
    2.) incomplete series

     In my case the problem happens when the bar series is added first to the chartview and then the line series, and the series are incomplete. However, it doesn't happen for all cases having these two conditions, so there must be some third factor affecting to this.

    I'm populating the chartview dynamically from datatable. The trackball is added to the chartview like following:

         Dim Trackball As New ChartTrackballController()
         AddHandler Trackball.TextNeeded, AddressOf trackball_textNeeded
         Trackball.InfoElementOffset = New System.Drawing.Point(0, -20)
         rChartView.Controllers.Add(Trackball)

    The formatting for the trackball texts is done in trackball_textNeeded  event handler.

    I'm using Telerik Q1/2013
  2. Pirjo
    Pirjo avatar
    10 posts
    Member since:
    Mar 2013

    Posted 13 Jun 2013 Link to this post

    Hi again,

    Today I managed to reproduce the trackball problem also for a chartview with complete series, i.e. it seems that condition 2 in my previous post does not have to be filled.

    Regards,
    Pirjo
  3. UI for WinForms is Visual Studio 2017 Ready
  4. Peter
    Admin
    Peter avatar
    1148 posts

    Posted 17 Jun 2013 Link to this post

    Hello Pirjo,

    Thank you for writing.

    The trackball functionality does not support multiple axes and the presence of multiple axes breaks the trackball logic. I logged this in our Public Issue Tracking System. You can add your vote for it and subscribe for status change notifications here: http://www.telerik.com/support/pits.aspx#/public/winforms/15187.

    Due to the internal logic of the trackball functionality I am not able to provide a suitable workaround for this.

    Your Telerik points have been updated for your feedback.

    Regards,
    Peter
    Telerik
    RadChart for WinForms is obsolete. Now what?
  5. Larry
    Larry avatar
    24 posts
    Member since:
    Mar 2008

    Posted 29 Sep 2014 in reply to Peter Link to this post

    I have the exact same problem with multiple axis.
  6. Dimitar
    Admin
    Dimitar avatar
    1404 posts

    Posted 30 Sep 2014 Link to this post

    Hello Larry,

    Thank you for writing.

    This functionality is still not implemented. The item is now transferred to our Feedback Portal. You can track it for status changes and add your vote for it here.

    I hope this information helps.

    Regards,
    Dimitar
    Telerik
     
    Check out Telerik Analytics, the service which allows developers to discover app usage patterns, analyze user data, log exceptions, solve problems and profile application performance at run time. Watch the videos and start improving your app based on facts, not hunches.
     
  7. Steve
    Steve avatar
    43 posts
    Member since:
    May 2014

    Posted 17 Mar in reply to Dimitar Link to this post

    I would like this functionality as well.
  8. Dimitar
    Admin
    Dimitar avatar
    1404 posts

    Posted 21 Mar Link to this post

    Hello Steve,

    Thank you for writing.

    The item is now completed and this should work without problems. 
     
    Let me know if you have additional questions.
     
    Regards,
    Dimitar
    Telerik
    Do you need help with upgrading your AJAX, WPF or WinForms project? Check the Telerik API Analyzer and share your thoughts.
Back to Top
UI for WinForms is Visual Studio 2017 Ready