The OnReportSaveStart Event occurs at the beginning of the Report save process.
For custom code the args array is structured as follows:
args is empty.
For .Net Assemblies the method signature is as follows:
string EventHandlerName(SessionInfo sessionInfo)
The OnReportSaveStart Event expects a string return value. If null, the report will continue processing; if not null, represents the language file ID, or string text to display to the user.
The report being saved can be accessed through the sessionInfo object by using sessionInfo.Report.