c# - 如何在 SplitContainer 的 Splitter 中添加抓取 handle

Question

SplitContainer 的分隔栏中曾经有 3 个点。就像StackOverflow上的question details文本框有三行表示可以抓取。我如何在 .NET 中使用 SplitContainer 的分隔条来做到这一点？

Answer 1

并不是说我反对 Alex 的回答，但我想我会分享这个解决方案，因为它看起来对我来说更好一些(无论如何在 XP 机器上？)。

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)));
    }
}

希望这能让人高兴？哈!