protected void ASPxGridView1_HtmlRowPrepared(object sender, DevExpress.Web.ASPxGridViewTableRowEventArgs e) { int rowCount = Convert.ToInt32(ASPxGridView1.GetGroupSummaryValue(e.VisibleIndex, ASPxGridView1.GroupSummary[0])); if (e.RowType == DevExpress.Web.GridViewRowType.Group) { if (rowCount > 10) { e.Row.BackColor = System.Drawing.Color.Red; } else { e.Row.BackColor = System.Drawing.Color.Green; } } }