GrapeCity.Win.Spread.InputMan.CellType.GcComboBoxCellType gccombo = new GrapeCity.Win.Spread.InputMan.CellType.GcComboBoxCellType();
gccombo.DropDownStyle = ComboBoxStyle.DropDownList;
gccombo.ListSelectedItemStyle.BackColor = Color.Red;
gccombo.Items.AddRange(new String[] { "Feta", "Havarti", "Swiss"});
fpSpread1.Sheets[0].Cells[1, 1].CellType = gccombo;
Dim gccombo As New GrapeCity.Win.Spread.InputMan.CellType.GcComboBoxCellType()
gccombo.DropDownStyle = ComboBoxStyle.DropDownList
gccombo.ListSelectedItemStyle.BackColor = Color.Red
gccombo.Items.AddRange(New String() {"Feta", "Havarti", "Swiss"})
FpSpread1.Sheets(0).Cells(1, 1).CellType = gccombo