Our team is in the process of converting Crystal Reports documents over to Telerik Reporting and one of Crystal Reports advantages over Telerik Reporting was the ability to create custom fields with Crystal or Visual Basic Syntax, including the declaration of variables. Lack of variables and a few common constructs can make simple expressions overly complex.

One of the more common use cases for us is formatting text differently based on one or more other values. Without the ability to write if/elseif/else blocks we wind up with nested ternary statements which can be are hard to read and maintain.

While we can write user functions that seems impractical for long term maintenance and support. It would be very helpful if we could create expressions using C# directly in the Report Designer and have the embedded within the report itself.

See my initial request for something similar in the forms here: https://www.telerik.com/forums/feature-request-if-elseif-else-and-or-switch-statement-support-in-expressions