如何将panel控件的四个角改成圆角的?

Question

以下内容是 将panel控件 的边框进行了重绘，但如果要将四个角改成圆角的话，怎么实现呢？
        private void panel2_Paint(object sender, PaintEventArgs e)
        {
            ControlPaint.DrawBorder( e.Graphics,  
                                panel2.ClientRectangle,
                                Color.Blue ,
                                3, 
                                ButtonBorderStyle.Solid,
                                Color.Red,
                                3,
                                ButtonBorderStyle.Solid,
                                Color.Red, 
                                3,
                                ButtonBorderStyle.Solid,
                                Color.Red,
                                3,
                                ButtonBorderStyle.Solid);

Answer 1

c# 的 panel 设置出来的效果太丑了，大家都用了哪些第三方控件呀？

Answer 2

        #region Form圆角
        public void SetWindowRegion()
        {
            System.Drawing.Drawing2D.GraphicsPath FormPath;
            FormPath = new System.Drawing.Drawing2D.GraphicsPath();
            Rectangle rect = new Rectangle(0, 0, this.Width, this.Height - 22);
            FormPath = GetRoundedRectPath(rect, 50);
            this.Region = new Region(FormPath);
        }
        private GraphicsPath GetRoundedRectPath(Rectangle rect, int radius)
        {
            int diameter = radius;
            Rectangle arcRect = new Rectangle(rect.Location, new Size(diameter, diameter));
            GraphicsPath path = new GraphicsPath();
            //   左上角   
            path.AddArc(arcRect, 180, 90);
            //   右上角   
            arcRect.X = rect.Right - diameter;
            path.AddArc(arcRect, 270, 90);
            //   右下角   
            arcRect.Y = rect.Bottom - diameter;
            path.AddArc(arcRect, 0, 90);
            //   左下角   
            arcRect.X = rect.Left;
            path.AddArc(arcRect, 90, 90);
            path.CloseFigure();
            return path;
        }
        protected override void OnResize(System.EventArgs e)
        {
            this.Region = null;
            SetWindowRegion();
        }
        #endregionForm 画面圆角的 希望对你有帮助

Answer 3

        #region Form圆角
        public void SetWindowRegion()
        {
            System.Drawing.Drawing2D.GraphicsPath FormPath;
            FormPath = new System.Drawing.Drawing2D.GraphicsPath();
            Rectangle rect = new Rectangle(0, 0, this.Width, this.Height - 22);
            FormPath = GetRoundedRectPath(rect, 50);
            this.Region = new Region(FormPath);
        }
        private GraphicsPath GetRoundedRectPath(Rectangle rect, int radius)
        {
            int diameter = radius;
            Rectangle arcRect = new Rectangle(rect.Location, new Size(diameter, diameter));
            GraphicsPath path = new GraphicsPath();
            //   左上角   
            path.AddArc(arcRect, 180, 90);
            //   右上角   
            arcRect.X = rect.Right - diameter;
            path.AddArc(arcRect, 270, 90);
            //   右下角   
            arcRect.Y = rect.Bottom - diameter;
            path.AddArc(arcRect, 0, 90);
            //   左下角   
            arcRect.X = rect.Left;
            path.AddArc(arcRect, 90, 90);
            path.CloseFigure();
            return path;
        }
        protected override void OnResize(System.EventArgs e)
        {
            this.Region = null;
            SetWindowRegion();
        }
        #endregion
Form画面圆角的希望对你有帮助

Answer 4

Infragistics组件功能比较强大,你看看

Answer 5

这个好像是设置图形属性，让窗体边缘变得锐化，我做的是让窗体渐变，或者图形线条；用到Graphics这个属性， 导入using System.Drawing.Drawing2D; 好像是吧，俺也没做过， 期待答案！