Getting RTSUnitTypeName from the engine

Hi, i'm kinda new to torque and am working on a city building game based on the rts starter kit

I need to get the RTSUnitTypeName from the datablock (shown below) in the engine but i don't really know how to access it...

datablock RTSUnitData(r_tileBlock : UnitBaseBlock)
{
   shapeFile = "~/data/shapes/tiles/r_tile.dts";
   RTSUnitTypeName = "ResidentialTile";   
   boundingBox = "32.0 32.0 6.0";
};

using the following code,

RTSUnit* unit = dynamic_cast<RTSUnit*>(ri.object);

Con::printf("ClassName = %s",unit->getClassName() ); //gives me RTSBuilding 
Con::printf("db ClassName = %s",unit->getDataBlock()->className );  //gives me RTSUnitData

is there any way to retrieve the string "ResidentialTile" from the engine?


regards
Liuyi