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Adding Support to Existing RTTI Objects

Question: “I notice that TppDataPipeline (or some other class) has a Next method (or some other member), but the RAP compiler doesn’t seem to recognize that method, are you going to add support for that?” Answer:  There are a number of class members which have not been added to RAP via the RTTI classes. We  Full Article…

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Adding AccessSpecifiers via RTTI

Question: “How do I add support for an Indexed property to RAP?” Answer:  A property such as TStrings.Values, is known as an Access Specifier. If you do a GREP search in the RBuilder source directory, you will find numerous references to AccessSpecifierToRec (see the RAP help for TraRTTI.AccessSpecifierToRec). AccessSpecifiers are an odd hybrid of property  Full Article…

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Summary CalcOnGroup Totals

TECH TIP: Calculating a Summary based on Group Totals Question: “I am using a Variable in the Group Footer to conditionally calculate totals for each group. I want to add a second Variable to the Summary that accumulates the results calculated for each group.” Answer: The following example uses two Variable components: vCustomerTotal and vCustomerSummary.  Full Article…

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