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Using a tqrexpr component at run-time

Question: How do I check the value of QRExpr control at runtime? Answer: The Value property of a TQRExpr component is of type TQREvResult. You can check Value.Kind to see what the data type is. The following table shows how to retrieve the results of the expression based on the value of Value.Kind: Value.Kind The result is in resInt Value.IntResult resDouble Value.DblResult resString Value.StrResult resBool Value.BooResult resError there was an error The constants are defined in the QRPrntr unit.