Last Updated: 14 Jun 2019 13:40 by ADMIN
Created on: 29 May 2019 13:20
Type: Bug Report
JsonDataSource evaluates NULL values incorrectly
The data coming from a JsonDataSource component has null values for a date field. Using the (IsNull, ??, IIf) to check for null does not seem to work. For example: =IIF(Fields.actualWorkHrs Is NULL, "T", "F") always returns false even when there are null values in the actualWorkHrs field.
Posted on: 14 Jun 2019 13:40
Hello Glenn,

This is an additional thing that we consider as valid feature request. I opened a new Feature Request item on your behalf. Please check it here: In future versions of our product we consider for implementation the most demanded features, so if it has more votes, we'll move it up in our implementation list.

And hello Tursunhuja,
Thank you for the input! We will check the Web Service Data Source too.

Best Regards,
Progress Telerik
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Posted on: 12 Jun 2019 10:47

That is also a problem in the web data source. I was trying to use "IsNull, ??, IIf" to check for null, but it doesn't work.

Posted on: 11 Jun 2019 13:28
I would like to be able to do this syntax: Fields.Address?.State.  If address is null, then it is the same as state being null.  Instead of displaying an error, it would just show blank.