This error message was thrown when trying to set ListControl.ValueMember=“mydatafield“
I know I had this problem once before and wasted a lot of time trying to solve it.
I found nothing helpful via google (though a hint about Oracle that referred to case sensitivity which I stupidly ignored since it was Oracle).
Finally it occured to me (as it has in the past) that the damned thing is case sensitive.
Just check what the datatable has as the column name and follow the casing exactly.
I thought I’d stick this here for the next poor sucker searching in Google for this problem.
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