如何移动滑块按钮( AutoScroll )

Question

如果整个长度正好是600点，如何将滑块分成两部分移动，右和左恰好200点？使用ButtonLeft和ButtonRight按钮...

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    private void buttonLeft_Click(object sender, EventArgs e)
    {
        panel1.AutoScrollPosition = new Point(-200, 0);
    }

    private void buttonRight_Click(object sender, EventArgs e)
    {
        panel1.AutoScrollPosition = new Point(+200, 0);
    }

Answer 1

如果有错误，请直接告诉我，但代码可以工作：SL#1 SL#2

    private void buttonLeft_Click(object sender, EventArgs e)
    {
        panel1.AutoScrollPosition = new Point(-panel1.AutoScrollPosition.X - 200);
    }

    private void buttonRight_Click(object sender, EventArgs e)
    {
        panel1.AutoScrollPosition = new Point(-panel1.AutoScrollPosition.X + 200);
    }

或

    private void buttonLeft_Click(object sender, EventArgs e)
    {
        Point p = panel1.AutoScrollPosition;
        panel1.AutoScrollPosition = new Point(-p.X - 200)
    }

    private void buttonRight_Click(object sender, EventArgs e)
    {
        Point p = panel1.AutoScrollPosition;
        panel1.AutoScrollPosition = new Point(-p.X + 200)
    }