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String-length – XpressDox

String-length is used to test the length of a string (the value of a data element)



Consider the following example. The business rule is that the value of «Code» may not be more than 4 characters. In order to guide users, a rule has been written testing the string-length of Code. If it is longer than 4 characters, users are presented with a message preventing them from proceeding.


«Rule(Code,hard,string-length(Code) < 5,'Your Code may not be longer than 4 characters')?»