Coding Guidelines for Reporting [AX 2012]

Updated: April 30, 2014

Applies To: Microsoft Dynamics AX 2012 R3

This topic contains coding guidelines to follow when creating Microsoft Dynamics AX reports.

The identifierStr Function is used to convert an identifier into a string, and validates that its argument is a valid identifier.  A benefit of using this function is that we don’t need to put the string in quotes like ‘BookId’; instead we can simply use identifierStr(BookId).

This method is mainly used in the contract class, for the parm methods.  For example, the parm method can be decorated with the DataMemberAttribute attribute which specifies the parameter name.

  This can be specified using the identifierStr() method as follows:

// correct
DataMemberAttribute(identifierStr(DocumentDate))
// incorrect
DataMemberAttribute(‘DocumentDate’)

The literalStr Function is used to validate a string at compile time.  The parameter can either be a hard coded string (in which case, a best practices error for a hard coded string will be thrown) or, as is more often the case, a label ID.  The main benefit of using this method is that it validates the label ID passed to it at compile time and throws a best practices error if an invalid label ID is passed to it.

This method is also often used in the contract class, for the parm methods. For example, the parm method can be decorated with SysOperationLabelAttribute attribute which specifies the label for the parameter.

This can be specified using the literalStr() method as follows:

SysOperationLabelAttribute (literalStr ("@SYS95927"))   // Correct
SysOperationLabelAttribute ("@SYS95927")    // Incorrect

Similar to the identifierStr Function and literalStr Function, the ssrsReportStr Function parses the 2 values passed to it – the report name and the design name – to validate whether it represents a valid report or not.  The report name needs to be set when a menu item points to a controller so that the controller knows which report-design combination must be invoked.  Using the ssrsReportStr Function provides the benefit of compile time validation for the report and design name.  The report name can be specified using the ssrsReportStr Function as follows:

controller.parmReportName(ssrsReportStr(ReportName,DesignName));

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