Public Overloads Sub RemoveViewport( _
   ByVal rowViewportIndex As Integer, _
   ByVal columnViewportIndex As Integer _
) 

Dim instance As FpSpread
Dim rowViewportIndex As Integer
Dim columnViewportIndex As Integer
 
instance.RemoveViewport(rowViewportIndex, columnViewportIndex)

public void RemoveViewport( 
   int rowViewportIndex,
   int columnViewportIndex
)

FarPoint.Win.Spread.FpSpread fpSpread1 = new FarPoint.Win.Spread.FpSpread();
FarPoint.Win.Spread.SheetView shv = new FarPoint.Win.Spread.SheetView();
DialogResult dlg;
fpSpread1.Location = new Point(10, 10);
fpSpread1.Height = 200;
fpSpread1.Width = 400;
Controls.Add(fpSpread1);
fpSpread1.Sheets.Add(shv);
fpSpread1.AddViewport(0, 0);
dlg = MessageBox.Show("Do you want to remove the viewport??", "RemoveViewport", MessageBoxButtons.YesNo);
if (dlg == DialogResult.Yes)
{
     fpSpread1.RemoveViewport(0,0);
}

Dim fpSpread1 As New FarPoint.Win.Spread.FpSpread()
Dim shv As New FarPoint.Win.Spread.SheetView()
Dim dlg As DialogResult
fpSpread1.Location = New Point(10, 10)
fpSpread1.Height = 200
fpSpread1.Width = 400
Controls.Add(fpSpread1)
fpSpread1.Sheets.Add(shv)
fpSpread1.AddViewport(0, 0)
dlg = MessageBox.Show("Do you want to remove the viewport??", "RemoveViewport", MessageBoxButtons.YesNo)
If dlg = DialogResult.Yes Then
     fpSpread1.RemoveViewport(0, 0)
End If