Called after a parameter dropdown object is constructed. Allows for modifying the object SQL.
For custom code the args array is structured as follows:
args contains one object, the SQL string which is passed to the server to construct the parameter dropdown.
For .NET Assemblies the method signature is as follows:
string EventHandlerName(SessionInfo sessionInfo, string sqlStatement)
The event expects a string return value: The (modified) SQL statement to be passed to the server to construct the parameter dropdown.