Multiseries /series type - chart help

2 posts, 0 answers
  1. travis
    travis avatar
    8 posts
    Member since:
    Feb 2011

    Posted 27 Jul 2011 Link to this post

    I would like to show a stacked bar chart that is comprised of two series.  This part I have set up and working just fine using databinding.
    There is always 24 points, one for each hour for both series.  I have set up the xaxis with shorttime and formatted the labels.  My datalayer is doing the oa date conversions and passing date values as double to the source datatable.  I'm handing the on_databind event to set up appropriate properties for the series including the col specifications and series type properies. 

    Now that my range stacked bars are setup and working fine I am trying to add an additonal series to the chart that is not made up of a full 24 points.  In fact there may be 0 points or many points in the entire series landing on dates between the xaxis markers (which are formatted for each hour).  The reason for this is the third series is intended to represent events which for all intents and purposes are random.  I intended to use the same databinding event handler to capture and change the type to type point of this third series to point and simply append my data for this series to the existing datatable.  I would intended to pass the variable x dates of the third series with a static y value representing a value just above the max of my existing series1/2 stacked ranges.

    and i was wondering if you could help me with a vb.net sample?

    the series data looks something like this (assume in my data that I've done the oa_Date conversion). Further assume that for both series 1 and 2 there are full 24 points, one for each hour.

    Whether I try to represent the dataset below using binding or manually creating series I can not get the position of the 3rd series set properly on the xaxis. 

    series_1,5/5/2011 2:00,8
    series_1,5/5/2011 3:00,9
    series_1,5/5/2011 4:00,32
    series_1,5/5/2011 5:00,3
     series_2,5/5/2011 2:00,21
    series_2,5/5/2011 3:00,23
    series_2,5/5/2011 4:00,3
    series_2,5/5/2011 5:00,12
    series_3,5/5/2011 2:23,30
    series_3,5/5/2011 4:46,30
     
     

  2. Peshito
    Admin
    Peshito avatar
    496 posts

    Posted 02 Aug 2011 Link to this post

    Hello Travis,

    Try setting your third series data points manually in order to control their appearance.

    As you've mentioned there may be 0 points or many points, then you could try using null values and set the series Empty Point behavior to a property that best works for you.

    Hope that helps.

    Kind regards,
    Peshito
    the Telerik team
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