[Solved] datablocks question: add send receive collision

hi
I want to put in datablocks to make the object able to receive collision
I tried like this
in datablocks.cs

datablock t2dSceneObjectDatablock( moneyBlock )
{
class = "money"; // the class that will be associated with the object
layer = 0; // the render layer

CollisionActiveReceive = "1"; // <----

};

but when I open the project and check the object the collision receive not ticked
any one know what is my mistake ?