C#实现自定义控件loading等待效果

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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Text;
using System.Windows.Forms;

namespace CNPOPSOFT.Controls
{
    public partial class LoadingCircle : Control
    {
        #region 常数

        private const double NumberOfDegreesInCircle = 360;
        private const double NumberOfDegreesInHalfCircle = NumberOfDegreesInCircle / 2;
        private cons

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

     文件      24576  2013-02-06 17:07  C#实现等待进度\LoadingCircle\bin\Debug\CNPOPSOFT.Controls.dll

     文件      30208  2013-02-06 17:07  C#实现等待进度\LoadingCircle\bin\Debug\CNPOPSOFT.Controls.pdb

     文件       2312  2012-06-08 08:32  C#实现等待进度\LoadingCircle\CNPOPSOFT.Controls.csproj

     文件        168  2012-06-08 08:32  C#实现等待进度\LoadingCircle\CNPOPSOFT.Controls.csproj.user

     文件      15476  2012-06-08 08:32  C#实现等待进度\LoadingCircle\LoadingCircle.cs

     文件       1042  2012-06-08 08:32  C#实现等待进度\LoadingCircle\LoadingCircle.Designer.cs

     文件       1519  2013-02-06 17:09  C#实现等待进度\LoadingCircle\obj\CNPOPSOFT.Controls.csproj.FileListAbsolute.txt

     文件      24576  2013-02-06 17:07  C#实现等待进度\LoadingCircle\obj\Debug\CNPOPSOFT.Controls.dll

     文件      30208  2013-02-06 17:07  C#实现等待进度\LoadingCircle\obj\Debug\CNPOPSOFT.Controls.pdb

     文件       1426  2012-06-08 08:32  C#实现等待进度\LoadingCircle\Properties\AssemblyInfo.cs

     文件       1455  2012-06-08 08:32  C#实现等待进度\LoadingCircle.sln

    ..A..H.    107520  2013-02-06 17:35  C#实现等待进度\LoadingCircle.suo

     文件      24576  2013-02-06 17:07  C#实现等待进度\LoadingCircleTest\bin\Debug\CNPOPSOFT.Controls.dll

     文件      30208  2013-02-06 17:07  C#实现等待进度\LoadingCircleTest\bin\Debug\CNPOPSOFT.Controls.pdb

     文件      28672  2013-02-06 17:09  C#实现等待进度\LoadingCircleTest\bin\Debug\CNPOPSOFT.Controls.Test.exe

     文件      28160  2013-02-06 17:09  C#实现等待进度\LoadingCircleTest\bin\Debug\CNPOPSOFT.Controls.Test.pdb

     文件       5632  2012-06-08 08:32  C#实现等待进度\LoadingCircleTest\bin\Debug\CNPOPSOFT.Controls.Test.vshost.exe

     文件       3044  2013-02-06 17:07  C#实现等待进度\LoadingCircleTest\CNPOPSOFT.Controls.Test.csproj

     文件        608  2012-06-08 08:32  C#实现等待进度\LoadingCircleTest\CNPOPSOFT.Controls.Test.csproj.user

     文件        799  2013-02-06 17:09  C#实现等待进度\LoadingCircleTest\Form1.cs

     文件       3571  2013-02-06 17:09  C#实现等待进度\LoadingCircleTest\Form1.Designer.cs

     文件       5814  2013-02-06 17:09  C#实现等待进度\LoadingCircleTest\Form1.resx

     文件       4483  2012-06-08 15:32  C#实现等待进度\LoadingCircleTest\frmMain.cs

     文件      26850  2012-06-08 15:32  C#实现等待进度\LoadingCircleTest\frmMain.Designer.cs

     文件       5987  2012-06-08 15:32  C#实现等待进度\LoadingCircleTest\frmMain.resx

     文件       3141  2013-02-06 17:10  C#实现等待进度\LoadingCircleTest\obj\CNPOPSOFT.Controls.Test.csproj.FileListAbsolute.txt

     文件        180  2013-02-06 17:09  C#实现等待进度\LoadingCircleTest\obj\Debug\CNPOPSOFT.Controls.Form1.resources

     文件        180  2013-02-06 17:07  C#实现等待进度\LoadingCircleTest\obj\Debug\CNPOPSOFT.Controls.frmMain.resources

     文件        829  2013-02-06 17:09  C#实现等待进度\LoadingCircleTest\obj\Debug\CNPOPSOFT.Controls.Test.csproj.GenerateResource.Cache

     文件      28672  2013-02-06 17:09  C#实现等待进度\LoadingCircleTest\obj\Debug\CNPOPSOFT.Controls.Test.exe

............此处省略22个文件信息