Extra Line under item with a groupby

[James Lever]

Right sorry if you don't understand this but i have grid that use's a group by my client wants a Line at the bottom of a main items not each item as it's confusing to which item belongs to which group to view it you may understand http://devskibeat.bn3tech.co.uk/

have a look.

[Princy]

Hello James,

I'm not clear with the scenario you require but from my understanding, to customize a GroupHeaderItem you can try the following code.
cs:

protected void RadGrid2_ItemDataBound(object sender, GridItemEventArgs e)
    {
        if (e.Item is GridGroupHeaderItem)
        {
            GridGroupHeaderItem item = (GridGroupHeaderItem)e.Item;
            item.DataCell.Style.Add("text-decoration", "underline");
        }
    }

You can also refer to the following document, for more information on how to customize the GroupHeader.
Customizing GridGroupHeaderItem

Thanks
Princy.