Run Time Problems. The expression contains undefined function call MyUserFunction().

Environment

Product

Progress® Telerik® Reporting

Description

An error with red message 'The expression contains undefined function call MyUserFunction().' occurs in the report.

Solution

There are three cases in which this error message occurs:

• The function name is typed in manually in the Expression, without building the class library, and it does not exist yet.
• Using the function with incorrect number/type of parameters. The passed fields must match the function signature.
• The field specified in the function is null. Make sure such cases are handled in the user function.