This property is available at run time only.
FarPoint.Win.Spread.Cell acell;
float cw;
acell = fpSpread1.ActiveSheet.Cells[0, 0];
cw = acell.Column.Width;
acell.Text = cw.ToString();
Dim acell As FarPoint.Win.Spread.Cell Dim size As Single acell = fpSpread1.ActiveSheet.Cells(0, 0) size = acell.Column.Width acell.Text = size