FarPoint.Win.Spread.StyleInfo si = new FarPoint.Win.Spread.StyleInfo();
bool b;
si.Renderer = new FarPoint.Win.Spread.CellType.CheckBoxCellType();
fpSpread1.ActiveSheet.DefaultStyle = si;
b = si.IsRendererSet();
label1.Text = b.ToString();
Dim si As New FarPoint.Win.Spread.StyleInfo
Dim b As Boolean
si.Renderer = New FarPoint.Win.Spread.CellType.CheckBoxCellType
FpSpread1.ActiveSheet.DefaultStyle = si
b = si.IsRendererSet()
Label1.Text = b.ToString()