Empty Binary Data field

Empty Binary Data field

  
How can I test inside an expression if an entitie binary data field is empty (Null)
To test the size of a binary field you can use the (unsupported) extension BinaryActions.
There is one other way to check if a binary field is null. You have to use an advanced query and place a condition like:

{entity}.[binaryfield] is null

These are all options when you cannot control the data model. If you are creating your data model it is advised to have the binary content field in a separate entity by itself.

If you do so all you have to do is test if the entry in the entity exists and act accordingly (you can use outer joins in simple queries now).