.NET触发MouseWheel事件

来源：互联网发布：图册排版设计软件编辑：程序博客网时间：2024/04/28 19:09

该方法适用于ListBox,Panel等，可惜ListView小弟我没有try成功。

        private int fontSize = 6;

        private void Form1_Load(object sender, EventArgs e)
        {
            listBox1.MouseWheel += new MouseEventHandler(this.listBox1_MouseWheel);
            listBox1.SelectedIndex = 10;

        }

        private void listBox1_MouseWheel(object sender, System.Windows.Forms.MouseEventArgs e)
        {
            int numberOfTextLinesToMove = e.Delta * SystemInformation.MouseWheelScrollLines / 120;
            int numberOfPixelsToMove = numberOfTextLinesToMove * fontSize;
            GraphicsPath mousePath = new GraphicsPath();
            if (numberOfPixelsToMove != 0)
            {
                System.Drawing.Drawing2D.Matrix translateMatrix = new System.Drawing.Drawing2D.Matrix();
                translateMatrix.Translate(0, numberOfPixelsToMove);
                mousePath.Transform(translateMatrix);
            }
            listBox1.Invalidate();

        }