FarPoint.Win.Spread.StyleInfo info = new FarPoint.Win.Spread.StyleInfo();
bool b;
info.Renderer = new FarPoint.Win.Spread.CellType.CheckBoxCellType();
fpSpread1.ActiveSheet.DefaultStyle = info;
b = info.IsPropertySet(FarPoint.Win.Spread.SheetStyleProperty.Renderer);
listBox1.Items.Add(b.ToString());
Dim info As New FarPoint.Win.Spread.StyleInfo()
info.Renderer = New FarPoint.Win.Spread.CellType.CheckBoxCellType()
Dim b As Boolean
FpSpread1.ActiveSheet.DefaultStyle = info
b = info.IsPropertySet(FarPoint.Win.Spread.SheetStyleProperty.Renderer)
ListBox1.Items.Add(b.ToString())