3 Replies Latest reply: Nov 20, 2014 4:13 AM by Zhihong He RSS

    isNull(fieldName) is true if select more than one value from fieldName

    Zhihong He

      Hi, all, I am confused of using IsNull here when I use IsNull() to check whether there value from a fieldName is selected or not.

      I can understand that if no selection of fieldName, then IsNull(fieldName) is true, but when I select more than one value from the fieldName, the result is also true, which I expect be false.

       

      If that is the case, then how can I identify there is no selection of a field? I need to use the result as a condition to show other object.

       

      Thank you very much~