How do I test for NULL values in reports?

Permanently deleted user

5. November 2015 16:14

The data we get from the Assessor now has NULL valuesin some fields and my labels ave broken.  How do I test for NULL values, and if it is NULL, then leave bank, else use the field value?

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  Chris Dunlop

  5. November 2015 23:57

  Hi Mike.  I've done that by adding a script to the Script tab.  The string/numeric null/empty logic is a little convoluted, but basically it searches each value for a null, and if so, it replaces it with a 0.  This won't work if your fields are resolving coded domains (using the .name() method).  ANyway, hopefully enough to get you going.

   

  Chris

   

  public void ActiveReport_DataInitialize()

   

  {

   

   

   

      int numRows = (rpt.DataSource as DataSet).Tables[0].Rows.Count;

   

     for (int ii = 0; ii < numRows;ii++)

   

     { 

   

      if (   string.IsNullOrEmpty((rpt.DataSource as DataSet).Tables[0].Rows[ii]["UTILITIES_Water_Hydrants.HYG_INLT_SZ"].ToString())   )

   

      {

   

          (rpt.DataSource as DataSet).Tables[0].Rows[ii]["UTILITIES_Water_Hydrants.HYG_INLT_SZ"]=0; 

   

      }

   

     }

   

    rpt.DataSource = ((DataSet)rpt.DataSource).Tables[0].Select(null, "UTILITIES_Water_Hydrants.HYG_NUMBER ASC");

   

  }

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