How to capture image of a specific panel in c# .net windows application?

// required in addition to the usual Win Forms stuff
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Drawing.Imaging;

// path to the Desktop
private string deskTopPath = Environment.GetFolderPath(Environment.SpecialFolder.Desktop);

// counter for number of snaps
private int snapCount = 0;

private void SaveControlImage(Control theControl)
{
    snapCount ++;

    Bitmap controlBitMap = new Bitmap(theControl.Width, theControl.Height);
    Graphics g = Graphics.FromImage(controlBitMap);
    g.CopyFromScreen(PointToScreen(theControl.Location), new Point(0,0), theControl.Size);

    // example of saving to the desktop
    controlBitMap.Save(deskTopPath + @"/snap_" + snapCount.ToString() + @".png", ImageFormat.Png);
}

// assume this is the Click EventHandler for a Button on a Form,
// and that a Panel named 'YourPanelName is what you want to copy
// the screen-image of, and save to a file
private void SnapShotControl_Click(object sender, EventArgs e)
{
    SaveControlImage(YourPanelName);
}