TDBGrid and Drag&Drop

Hi together,

I have problems with Delphi 3.0 TDBGrids. I want to drag the items from
1 dbgrid to another. but when i put dragmode "dragAutomatic" I can't
any item any more, when I try to implement my own procedure by using
component.beginDrag I cannot find a OnMouseDown-Event with the
TDBGrid-Component. I made my own component based on TDBGrid
and published OnMouseDown, but the event is not called.
please, can anyone help me with this problem, or is it perhaps

thx a lot,
carsten willems