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Dynamics 365 Community / Forums / Finance | Project Operations, Human Resources, ... / Handle null with FormJ...
Finance | Project Operations, Human Resources, ...
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Handle null with FormJsonSerializer X++

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Posted on by AI-26111618-0 49
Hello experts

How to deal with a null value when deserializing an object using FormJsonSerializerin X++, because it throws en error when dealing with a null value
 
Thanks
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Dynamics 365 Finance
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  • Martin Dráb Profile Picture
    Martin Dráb 236,184 Most Valuable Professional on at
    Handle null with FormJsonSerializer X++
    Mohamed, your suggested answer doesn't make a good sense to me. Can you please explain where you would put such code and how it'll solve the problem (if you know what the problem is in the first place). It seems to me that we don't yet know the exact problem, therefore suggesting a solution is a bit premature. 
     
    Your code doesn't even seem to be about JSON deserilization at all; you just check whether an object reference is null, but deserialization happens before data from JSON are available in X++ objects.
  • Suggested answer
    Mohamed Amine Mahmoudi Profile Picture
    Mohamed Amine Mahmoudi 26,311 Super User 2025 Season 2 on at
    Handle null with FormJsonSerializer X++
     
    You must add a condition to avoid desrializing a null object.
     
    if(v != null)
{
   //your code here
}
    Best regards,
    Mohamed Amine MAHMOUDI
  • Martin Dráb Profile Picture
    Martin Dráb 236,184 Most Valuable Professional on at
    Handle null with FormJsonSerializer X++
    Please give us more information about your problem. What do you have in JSON (missing property, empty property, null value), how does the target data contract look like, what error are you getting?
     
    Moved from Integration, Dataverse, and general topics forum. 

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