ADOQuery LookUp字段展示

ADOQuery LookUp字段显示



就是在DBGridEh列中显示下拉字段，  具体步骤是怎么样？我这个不行
[解决办法]
grid有个PickList
DBGrid1->Columns->Items[0]->PickList->Add("a");
DBGrid1->Columns->Items[0]->PickList->Add("b");
DBGrid1->Columns->Items[0]->PickList->Add("c");