Hi experts,

I'd like to change the border of a cell. But it change the border of entire grid as long as I set cell's border. Wierd, I'm not sure what happend. Please help!!!
As you can see, I try to change the first cell's border, but the entire grid's border turns to red...

DataRecord dr = (DataRecord)this._copylengthGrid.Records[0];
Cell cell = dr.Cells[0];
cell.DataPresenter.BorderThickness = new Thickness(5);
cell.DataPresenter.BorderBrush = Brushes.Red;