What is the correct way to accomplish this? Im not creating the correct expression.
I want the condition to see if a value is not equal to a list of values
Hey Andrew,
I might first set a boolean variable for this result using string.Contains(yourValue), then in your condition, test the variable as being false. Just a thought.
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This condition is looking for a C# expression
to finish what you’ve set up:
ds.PODetail.PartNum != [your expression]
So your expression here has to evaluate to a string that will be checked against the PartNum for equality…
Probably the most straightforward way to do this (particularly if you’re not comfortable with C#) is to add a condition for each invalid PartNum 
I could be wrong, but to do the string.Contains that Mark suggested, you’ll have to get the “changed” row of PODetail (and best to check for null…)
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