X Value must be null or empty

3 posts, 0 answers
  1. YongKoo Kang
    YongKoo Kang avatar
    103 posts
    Member since:
    Jan 2010

    Posted 17 Dec 2017 Link to this post

    Hi telerik,

     

    I've a report view which contains Graph and has been used for a few years since 2015 without problem,

    however I encountered an error after upgrading to 2017 R3 saying "lineSeries1 : X value must be null or empty when using Category Style".

    I searched here and there as well as report document guide but can't have a tip.

    What does that mean? 

    Pls refer attached my report design image and let me know what should be changed.

     

    TIA

    Kang

     

  2. Ivan Hristov
    Admin
    Ivan Hristov avatar
    128 posts

    Posted 19 Dec 2017 Link to this post

    Hi Kang,

    You are right, this error message was recently introduced and its function is to notify the user that the series' X value does not need an expression, when using a category scale. As explained here, the X value will be automatically determined by the category group, which has its Grouping set to a certain field, so it's redundant to use this field also for the series' X property.

    Please make sure that the field used for category grouping is LapSeconds and remove (reset) the X property from series definition. This will allow the graph to be correctly processed and rendered.

    Regards,
    Ivan Hristov
    Progress Telerik
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  3. YongKoo Kang
    YongKoo Kang avatar
    103 posts
    Member since:
    Jan 2010

    Posted 19 Dec 2017 in reply to Ivan Hristov Link to this post

    Hi Ivan,

     

    It works. Thanks.

    Kang

     

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