Report Designer - question about null values in calculated fields

Chris Dunlop

30. November 2011 04:52

Hello.  I'm trying to set up some logic in a calculated field:  If a field is null, print nothing, else print the trimmed value of the field.

The following expression works for features that have a valid text field SITUS_CITY, but fails if SITUS_CITY is null:  (SITUS_CITY == System.DBNull.Value ? "" : SITUS_CITY.ToString().Trim())

If I remove the .ToString().Trim(), the expression works for nulls, but unfortunately I need valid values to be trimmed.

Any ideas?

Thanks,

Chris

 

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  Chris Dunlop

  1. Dezember 2011 06:58

  Thanks Jonathan, that worked like a charm!

   

  Chris

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  Permanently deleted user

  27. September 2012 00:58

  Hi,

  I am facing problem with DataSource in report designer, i was to able to see the values from the database for the Labels with DataField property in report designer in preview mode.

   

  I have integrated the Print template(.rpx file) in the silverlight site using REST manager, in the output file, the datafeild values are displayed with "Control Script" text.

   

  Do needfull help.

   

  Regards,

  Satish.

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  Permanently deleted user

  27. September 2012 13:18

  Hi Sathish

  are the nulls in the spatial data or linked data?

  Potentially if it is linked data then you could deal with the nulls using

  select field1, ISNULL(field2,'') as notNullField2 from linkedTable where rec_id = @SpatialId

  ie deal with it before it gets to the report. You could even go crazy and make the attributes of the spatial feature to be linked data as well to cure the situation of nulls in that data.

  Regards

  Ralph

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  Permanently deleted user

  27. September 2012 16:50

  Hi Price,

  Thanks for your response. It was not a problem with null values, there are no null vaues in my table. After some research i got details about this issue in the following link

   

  https://support.geocortex.com/SupportForums/Thread.aspx?pageid=0&mid=2&ItemID=2&thread=46479

  This is what my problem exactly, Can you please suggest me a detailed solution for this issue, either i need to use a workflow or configurations can help.

  Regards,

  Satish.

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