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Power Platform Community / Forums / Power Apps / Expression XXX eq null...
Power Apps
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Expression XXX eq null is not supported.

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Posted on by SNCBPowerapps

Hello,

 

I am a beginner in the use of Powerapps and I get this error when I click one of my dropbox : 

SNCBPowerapps_0-1684996489863.png

 

The dropbox is basically showing an Excel table column.

SNCBPowerapps_1-1684996711380.png

 

I have a few textboxes displaying stu depending on the choice selected via the dropbox :

SNCBPowerapps_2-1684996729416.png for example

 

That error doesn't affect the performance of the application but is unpleasant to the user.

 

I have looked upon all of the other topics about that subject but have not found the solution yet.

 

Any help to resolve would be grealy appreciated ! 👍

Categories:
Building Power Apps
  • v-qiaqi@microsoft.com Profile Picture
    v-qiaqi@microsoft.com Microsoft Employee on at

    Hi @SNCBPowerapps,

    I think you should translate the error message in English and tell me that what is your varSTec and why you refer to SerieTechnique in the Concat() function.

     

    Concat() should return a text string instead of null, so make sure that varSTec has data within.

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