次のサンプルコードは、ShowTrailingプロパティを設定します。
GrapeCity.Win.Spread.InputMan.CellType.GcDateTimeCellType gcDateTimeCell1 = new GrapeCity.Win.Spread.InputMan.CellType.GcDateTimeCellType();
gcDateTimeCell1.DropDownCalendar.ShowTrailing = false;
fpSpread1.Sheets[0].Cells[1, 1].CellType = gcDateTimeCell1;
Dim gcDateTimeCell1 As New GrapeCity.Win.Spread.InputMan.CellType.GcDateTimeCellType()
gcDateTimeCell1.DropDownCalendar.ShowTrailing = False
FpSpread1.Sheets(0).Cells(1, 1).CellType = gcDateTimeCell1