I'm suffering with DataGrid, using some controls that have an "auto-bound" data, like TTMSFNCCustomCheckGroupPicker. As in the image below, it always take the value from "value" property, but i need to take another value. I already have implemented methods: OnCellEditSetData and OnCellEditGetData, but these methods are triggered before pass through the code in image (eg. set data). These methods should have a parameter called "Handled" .. then if handled, no value will be set or get from controls using rtti methods like below...
for now, i didn't find a way to work around that.
