To reproduce: please refer to the attached sample project. 1. Edit the CommonInt property for the first child row. 2. Edit the CommonInt property for the second child row. Workaround: Add the grid programmatically at run time. Second Workaround: this.radGridView1.CellValueChanged+=radGridView1_CellValueChanged; private void radGridView1_CellValueChanged(object sender, GridViewCellEventArgs e) { e.Column.OwnerTemplate.Refresh(e.Column); }