private void UpdateScrollBars()
{
this.CheckAutoscrollPosition();
Rectangle rect = DisplayRectangle;
if (null != vScrollBar)
{
vScrollBar.SetBounds(rect.Right, 0, vScrollBar.Width, rect.Height);
if (DisplayRectangle.Height >= ScrollArea.Height)
{
vScrollBar.Visible = false;
}
else
{
// vScrollBar.CreateControl();
// set Maximum before setting the value, or we get an exception
vScrollBar.Maximum = ScrollArea.Height - 1;
vScrollBar.Value = -(autoScrollPosition.Y);
// set Large/SmallChange after setting maximum, or display failure
vScrollBar.LargeChange = DisplayRectangle.Height;
vScrollBar.SmallChange = (DisplayRectangle.Height + 9) / 10;
vScrollBar.Visible = vscroll;
}
}
if (null != hScrollBar)
{
hScrollBar.SetBounds(0, rect.Bottom, rect.Width, hScrollBar.Height);
if (DisplayRectangle.Width >= ScrollArea.Width)
{
hScrollBar.Visible = false;
}
else
{
// set Maximum before setting the value, or we get an exception
hScrollBar.Maximum = ScrollArea.Width - 1;
hScrollBar.Value = -(autoScrollPosition.X);
// set Large/SmallChange after setting maximum, or display failure
hScrollBar.LargeChange = DisplayRectangle.Width;
hScrollBar.SmallChange = (DisplayRectangle.Width + 9) / 10;
hScrollBar.Visible = hscroll;
}
}
}
