摘自:http://discuss.develop.com/
測試過,挺好的!
public class ProgressStatusBar : System.Windows.Forms.StatusBar
{
public ProgressStatusBar()
{
this.SizingGrip = false;
this.ShowPanels = true;
}
protected override void
OnDrawItem(StatusBarDrawItemEventArgs e)
{
if
(e.Panel.GetType().ToString().EndsWith("ProgressPanel"))
{
ProgressPanel ProgressPanel =
(ProgressPanel) e.Panel;
if (ProgressPanel.Value >
ProgressPanel.Minimum)
{
int NewWidth =
(int)(((double)ProgressPanel.Value / (double)ProgressPanel.Maximum) *
(double)ProgressPanel.Width);
Rectangle NewBounds = e.Bounds;
SolidBrush PaintBrush = new
SolidBrush(ProgressPanel.ForeColor);
NewBounds.Width = NewWidth;
e.Graphics.FillRegion(PaintBrush, new Region(NewBounds));
PaintBrush.Dispose();
}
else
{
base.OnDrawItem(e);
}
}
else
{
base.OnDrawItem(e);
}
}
public void UpdateValue(ProgressPanel ProgressPanel, int
NewValue)
{
ProgressPanel.Value = NewValue;
}
}
public class ProgressPanel : System.Windows.Forms.StatusBarPanel
{
private int m_Minimum = 1;
private int m_Maximum = 100;
private int m_Value = 0;
private Color m_Color;
public ProgressPanel()
{
this.Style = StatusBarPanelStyle.OwnerDraw;
this.ForeColor = Color.DarkBlue;
}
public int Minimum
{
get { return m_Minimum; }
set { m_Minimum = value; }
}
public int Maximum
{
get { return m_Maximum; }
set { m_Maximum = value; }
}
public int Value
{
get { return m_Value; }
set { m_Value = value; }
}
public Color ForeColor
{
get { return m_Color; }
set { m_Color = value; }
}
}