c#拖动控件

最新推荐文章于 2025-12-16 15:32:52 发布

原创最新推荐文章于 2025-12-16 15:32:52 发布 · 493 阅读

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本文介绍了一种使用C#实现图片视图拖动的方法。通过MouseDown、MouseMove和MouseUp事件，用户可以拖动PictureBox中的图像。代码详细展示了如何记录鼠标初始位置并据此更新PictureBox的位置。

private bool isDragging = false; //拖中
private int currentX = 0, currentY = 0; //原来鼠标X,Y坐标
private void pictureBox1_MouseDown(object sender, MouseEventArgs e)
        {
            isDragging = true;  //可以拖动
            currentX = e.X;
            currentY = e.Y;
        }

        private void pictureBox1_MouseUp(object sender, MouseEventArgs e)
        {
            isDragging = false;
        }

        private void pictureBox1_MouseMove(object sender, MouseEventArgs e)
        {
            if (isDragging)
            {
                pictureBox1.Top = pictureBox1.Top + (e.Y - currentY);
                pictureBox1.Left = pictureBox1.Left + (e.X - currentX);
            }
        }