protected void Page_Load(object sender, System.EventArgs e)
{
if (this.IsPostBack) return;
FpSpread1.Sheets[0].Cells[0, 1].Value = 30;
FpSpread1.Sheets[0].Cells[1, 1].Value = 15;
FpSpread1.Sheets[0].Cells[2, 1].Value = 10;
FarPoint.Web.Spread.CustomFilterItem customfilter = new FarPoint.Web.Spread.CustomFilterItem(new FarPoint.Web.Spread.FilterCondition(FarPoint.Web.Spread.CustomFilterOperatorType.GreaterThan, 10), new FarPoint.Web.Spread.FilterCondition(FarPoint.Web.Spread.CustomFilterOperatorType.LessThan, 20), true);
FarPoint.Web.Spread.IRowFilter rowFilter = new FarPoint.Web.Spread.HideRowFilter(FpSpread1.ActiveSheetView);
FarPoint.Web.Spread.FilterColumnDefinition fd = new FarPoint.Web.Spread.FilterColumnDefinition(1, FarPoint.Web.Spread.FilterListBehavior.Custom);
fd.Filters.Add(customfilter);
rowFilter.ColumnDefinitions.Add(fd);
FpSpread1.ActiveSheetView.RowFilter = rowFilter;
FpSpread1.ActiveSheetView.AutoFilterColumn(1, customfilter.DisplayName);
FpSpread1.ActiveSheetView.AutoFilterMode = FarPoint.Web.Spread.AutoFilterMode.Enhanced;
}