过去有3个点在SplitContainer中的分隔栏。就像有在显示它可以抓起的StackOverflow问题的详细信息文本框中三行。如何才能做到这一点的，SplitContainer中的.NET分隔栏？

There used to be 3 dots in the splitter bar of a SplitContainer. Just like there are three lines in question details text box on StackOverflow that shows it can be grabbed. How can I do this with the splitter bar of a SplitContainer in .NET?

推荐答案

这并不是说我对亚历克斯的回答什么，但我想我会分享这个解决方案，因为它的看起来的一点更好给我（在XP的机器呢？）。

Not that I have anything against Alex's answer, but I thought I'd share this solution as it looks a bit nicer to me (on an XP machine anyway?).

private void SplitContainer_Paint(object sender, PaintEventArgs e)
{
    var control = sender as SplitContainer;
    //paint the three dots'
    Point[] points = new Point[3];
    var w = control.Width;
    var h = control.Height;
    var d = control.SplitterDistance;
    var sW = control.SplitterWidth;

    //calculate the position of the points'
    if (control.Orientation == Orientation.Horizontal)
    {
        points[0] = new Point((w / 2), d + (sW / 2));
        points[1] = new Point(points[0].X - 10, points[0].Y);
        points[2] = new Point(points[0].X + 10, points[0].Y);
    }
    else
    {
        points[0] = new Point(d + (sW / 2), (h / 2));
        points[1] = new Point(points[0].X, points[0].Y - 10);
        points[2] = new Point(points[0].X, points[0].Y + 10);
    }

    foreach (Point p in points)
    {
        p.Offset(-2, -2);
        e.Graphics.FillEllipse(SystemBrushes.ControlDark,
            new Rectangle(p, new Size(3, 3)));

        p.Offset(1, 1);
        e.Graphics.FillEllipse(SystemBrushes.ControlLight,
            new Rectangle(p, new Size(3, 3)));
    }
}

希望这喜悦的人吗？哈阿！

Hope this pleases someone? Haa!