fpSpread1.AddViewport(0, 0);
int i;
fpSpread1.SetViewportLeftColumn(1, 5);
i = fpSpread1.GetViewportLeftColumn(1);
textBox1.Text = i.ToString();
FpSpread1.AddViewport(0, 0)
Dim i As Integer
FpSpread1.SetViewportLeftColumn(1, 5)
i = FpSpread1.GetViewportLeftColumn(1)
TextBox1.Text = i.ToString()