FormBorderStyle.None 时候最大化不遮盖任务栏

this.FormBorderStyle = FormBorderStyle.None;

            this.MaximumSize = new Size(Screen.PrimaryScreen.WorkingArea.Width, Screen.PrimaryScreen.WorkingArea.Height);

            this.WindowState = FormWindowState.Maximized;

 

转自：http://wisecn.blog.163.com/blog/static/19755864520120644738257/