How to: Dynamically Provide Display Text for Preview Sections
This example customizes the row preview text.
using DevExpress.XtraGrid.Views.Grid;
private void gridView1_CalcPreviewText(object sender, CalcPreviewTextEventArgs e) {
GridView view = sender as GridView;
if (view == null) return;
e.PreviewText = "Item: " + e.PreviewText + "; Units: " +
view.GetRowCellDisplayText(e.RowHandle, _
view.Columns["UnitsOnOrder"]) + ".";
}