This callback is triggered when a tag with the format "<MergeCode Name=?/>" is encountered in the XML, where "?" is the name. Generaly, this callback would be used when a value should be dynamically inserted into a placeholder during the loading of the report.
Requirements
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2