Editable cell on hierarchy RadGrid and asociated to another cell on parent table

[Carlos]

Hi, let me try to explain what i need.

I already have a hierarchy grid, the data is loaded on the event "OnNeedDataSource" and creating a dataRelation between tables.

I need a cell is editable and it is related to a cell in the parent table. The parent cell is a summarization of the values ​​in cells is related, so if you change a value in a cell, the parent cell should change.

Attached an image illustrating the case.