c#自定义圆角panel

c#自定义圆角panel，可设置圆角的弧度，可设置图片，并且有单击事件，自己可以再次修改源码。文件中已生成dll

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace ControlPanel
{
    [ToolboxBitmap（typeof（Panel））]
    [DefaultEvent（“PanelClick“）]
    public partial class PicturePanel : UserControl
    {
        public PicturePanel（）
        {
            InitializeComponent（）;
            this.Padding = new System.Windows.Forms.Padding（0 0 0 0）;
            this.Margin = new System.Windows.Forms.Padding（0 0 0 0）;
            this.BackgroundImageLayout = System.Windows.Forms.ImageLayout.Stretch;
        }
        public delegate void ClickHandle（object sender EventArgs e）;
        public event ClickHandle PanelClick;
        private int radius;  // 圆角弧度

        /// 
圆角弧度（0为不要圆角）

        [Browsable（true）]
        [Description（“圆角弧度（0为不要圆角）“）]
        public int Radius 
        {
            get
            {
                return radius;
            }
            set
            {
                if （value < 0） { radius = 0; }
                else { radius = value; }
                base.Refresh（）;
            }
        }

        private Image picture;
        [Description（“设置图片“）]
        public Image Picture
        {
            get { return picture; }
            set { picture = value; pictureBox1.Image = picture; Invalidate（）; }
        }

        private PictureBoxSizeMode imageMode;
        [Description（“设置图片定位“）]
        public PictureBoxSizeMode ImageMode
        {
            get { return imageMode; }
            set { imageMode = value; pictureBox1.SizeMode = imageMode; Invalidate（）; }
        }
        // 圆角代码
        public void Round（System.Drawing.Region region）
        {
            // -----------------------------------------------------------------------------------------------
            // 已经是.net提供给我们的最容易的改窗体的属性了（以前要自己调API）
            System.Drawing.Drawing2D.GraphicsPath oPath = new System.Drawing.Drawing2D.GraphicsPath（）;
            int x = 0;
            int y = 0;
            int thisWidth = this.Width;
            int thisHeight = this.Height;
            int angle = radius;
            if （angle > 0）
            {
                System.Drawing.Graphics g = CreateGraphics（）;
                oPath.AddArc（x y angle angle 180 90）;                                 // 左上角
                oPath.AddArc（thisWidth - angle y angle angle 270 90）;                 // 右上角
                oPath.AddArc（thisWidth - angle thisHeight - angle angle angle 0 90）;  // 右下角
                oPath.AddArc（x thisHeight - angle angle angle 90 90）;                 // 左下角
                oPath.CloseAllFigures（）;
                Region = new System.Drawing.Region（oPath）;
            }
            // -----------------------------------------------------------------------------------------------
  

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

     文件       9728  2014-02-20 21:11  ControlPanel\bin\Debug\ControlPanel.dll

     文件      19968  2014-02-20 21:11  ControlPanel\bin\Debug\ControlPanel.pdb

     文件       3265  2014-02-06 20:32  ControlPanel\ControlPanel.csproj

     文件        643  2014-02-20 21:11  ControlPanel\obj\Debug\ControlPanel.csproj.FileListAbsolute.txt

     文件       9728  2014-02-20 21:11  ControlPanel\obj\Debug\ControlPanel.dll

     文件      19968  2014-02-20 21:11  ControlPanel\obj\Debug\ControlPanel.pdb

     文件        180  2014-02-20 21:11  ControlPanel\obj\Debug\ControlPanel.PicturePanel.resources

     文件        180  2014-02-20 21:11  ControlPanel\obj\Debug\ControlPanel.Properties.Resources.resources

     文件       4440  2014-02-07 21:59  ControlPanel\obj\Debug\DesignTimeResolveAssemblyReferences.cache

     文件       6008  2014-02-20 21:11  ControlPanel\obj\Debug\DesignTimeResolveAssemblyReferencesInput.cache

     文件        218  2014-02-20 21:11  ControlPanel\obj\Debug\GenerateResource.read.1.tlog

     文件        538  2014-02-20 21:11  ControlPanel\obj\Debug\GenerateResource.write.1.tlog

     文件       4096  2014-02-06 20:31  ControlPanel\obj\Debug\TempPE\Properties.Resources.Designer.cs.dll

     文件       4515  2014-02-20 21:11  ControlPanel\PicturePanel.cs

     文件       2431  2014-02-20 21:09  ControlPanel\PicturePanel.Designer.cs

     文件       5817  2014-02-20 21:09  ControlPanel\PicturePanel.resx

     文件       1376  2014-02-06 20:14  ControlPanel\Properties\AssemblyInfo.cs

     文件       2863  2014-02-06 20:31  ControlPanel\Properties\Resources.Designer.cs

     文件       5817  2014-02-06 20:31  ControlPanel\Properties\Resources.resx

     目录          0  2014-02-06 20:31  ControlPanel\obj\Debug\TempPE

     目录          0  2014-02-20 21:11  ControlPanel\bin\Debug

     目录          0  2014-02-06 20:14  ControlPanel\bin\Release

     目录          0  2014-02-20 21:11  ControlPanel\obj\Debug

     目录          0  2014-02-06 20:14  ControlPanel\bin

     目录          0  2014-02-06 20:14  ControlPanel\obj

     目录          0  2014-02-06 20:31  ControlPanel\Properties

     目录          0  2014-02-06 20:15  ControlPanel

----------- ---------  ---------- -----  ----

               101779                    27



............此处省略0个文件信息