Chart Item Click

4 posts, 0 answers
  1. Simeon
    Simeon avatar
    27 posts
    Member since:
    Jul 2012

    Posted 22 Oct 2009 Link to this post

    I have a line graph with about 300 datapoints on it.  So to smooth it out we have changed the ShowPointMarks property on the 

    LineSeriesDefinition

     

     

    to be false.  This works great and makes for a really pretty chart.  However I also need to be able to click the point to display data in a textblock (got this working by adding a handler for the DefaultView.ChartArea.ChartItemClick) but what I want to now is change the style of the chart item that was clicked to show a point mark to tie the visual point on the graph to the extra data I am displaying in the textblock.

    Is this possible?

    Cheers,

  2. Giuseppe
    Admin
    Giuseppe avatar
    2363 posts

    Posted 26 Oct 2009 Link to this post

    Hello James,

    Unfortunately RadChart does not support selective display for the Line pointmarks at the moment and it will not be possible to achieve the desired effect.


    All the best,
    Manuel
    the Telerik team

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  3. Simeon
    Simeon avatar
    27 posts
    Member since:
    Jul 2012

    Posted 27 Oct 2009 Link to this post

    Ok.  Are there any plans in the future to add this sort of functionality?  As I think it would add to the interactivty if the chart.  We are trying to use the chart to control temperature data over a timescale but we would like to tie the record being displayed to a position on the chart.

    This might sound like a stupid question but could we replace the x-asis with a RadSlider to give the time this would also help up with precise navigation of our temperature records because at the moment it is quite difficult to click an exact time due to the quanitity of the coordinates plotted.

    Thanks,
  4. Giuseppe
    Admin
    Giuseppe avatar
    2363 posts

    Posted 30 Oct 2009 Link to this post

    Hello James,

    Indeed such functionality would add value to the control interactivity and we will forward your feedback to our developers so they can consider it when planning the backlog for the next version of the control.

    As for your second question -- unfortunately it is not possible to replace the XAxis with a slider control that would preserve its functionality.


    All the best,
    Manuel
    the Telerik team

    Instantly find answers to your questions on the new Telerik Support Portal.
    Watch a video on how to optimize your support resource searches and check out more tips on the blogs.
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