Result Types are Mismatched for If Statement

[Anonymous]

I am trying to create an if statement using the Expression Builder. 

The syntax is:

 If ( [condition], [trueValue], [falseValue] )  

I have entered:

  If (  OWNER_ID = 10, 'COVAV' , 'Other' )  

OWNER_ID is an integer. I have tried other fields that are strings and putting quotes around the test, but nothing works. I get:

The expression is invalid
Error: Argument types for function 'If' are mismatched. Click here to move the cursor to the error (3)#3
Error: Result types are mismatched: the validation operation expected 'Boolean' but the expression returned 'Unknown'

Thanks

[Anonymous]

Try single-quoting the condition part of the expression.

If (  'OWNER_ID = 10', 'COVAV' , 'Other' )  

- Jackie