清除webBrowser 缓存和Cookie的解决方案

清除webBrowser 缓存和Cookie的解决方案

 

通过测试webBrowser与IE缓存和Cookie都存放在Local SettingsTemporary Internet Files，我们可以直接调用IE API进行清除

解决方案1：

public enum ShowCommands : int

{

SW_HIDE = 0,

SW_SHOWNORMAL = 1,

SW_NORMAL = 1,

SW_SHOWMINIMIZED = 2,

SW_SHOWMAXIMIZED = 3,

SW_MAXIMIZE = 3,

SW_SHOWNOACTIVATE = 4,

SW_SHOW = 5,

SW_MINIMIZE = 6,

SW_SHOWMINNOACTIVE = 7,

SW_SHOWNA = 8,

SW_RESTORE = 9,

SW_SHOWDEFAULT = 10,

SW_FORCEMINIMIZE = 11,

SW_MAX = 11

}

[DllImport("shell32.dll")]

static extern IntPtr ShellExecute( IntPtr hwnd, string lpOperation, string lpFile, string lpParameters, string lpDirectory, ShowCommands nShowCmd);

//清除IE临时文件

                ShellExecute(IntPtr.Zero, "open", "rundll32.exe", " InetCpl.cpl,ClearMyTracksByProcess 255", "", ShowCommands.SW_HIDE);

其中ClearMyTracksByProcess 可进行选择设置 ：

Temporary Internet Files  （Internet临时文件）

RunDll32.exe InetCpl.cpl,ClearMyTracksByProcess 8

Cookies

RunDll32.exe InetCpl.cpl,ClearMyTracksByProcess 2

History (历史记录)

RunDll32.exe InetCpl.cpl,ClearMyTracksByProcess 1

 Form. Data （表单数据）

RunDll32.exe InetCpl.cpl,ClearMyTracksByProcess 16

 Passwords (密码）

RunDll32.exe InetCpl.cpl,ClearMyTracksByProcess 32

 Delete All  （全部删除）

RunDll32.exe InetCpl.cpl,ClearMyTracksByProcess 255

解决方案2：快速清除webBrowser Cookie

wb.Document.Cookie.Remove(0, (wb.Document.Cookie.Count - 1))

另外一个

1.  
   [DllImport("wininet.dll", CharSet = System.Runtime.InteropServices.CharSet.Auto, SetLastError = true)]
2.  
   public static extern bool InternetSetOption(int hInternet, int dwOption, IntPtr lpBuffer, int dwBufferLength);
3.  
   private unsafe void SuppressWininetBehavior()
4.  
   {
5.  
   /* SOURCE: http://msdn.microsoft.com/en-us/library/windows/desktop/aa385328%28v=vs.85%29.aspx
6.  
   * INTERNET_OPTION_SUPPRESS_BEHAVIOR (81):
7.  
   * A general purpose option that is used to suppress behaviors on a process-wide basis.
8.  
   * The lpBuffer parameter of the function must be a pointer to a DWORD containing the specific behavior to suppress.
9.  
   * This option cannot be queried with InternetQueryOption.
10.  
    *
11.  
    * INTERNET_SUPPRESS_COOKIE_PERSIST (3):
12.  
    * Suppresses the persistence of cookies, even if the server has specified them as persistent.
13.  
    * Version: Requires Internet Explorer 8.0 or later.
14.  
    */
15.  
    int option = (int)3/* INTERNET_SUPPRESS_COOKIE_PERSIST*/;
16.  
    int* optionPtr = &option;
17.  
    bool success = InternetSetOption(0, 81/*INTERNET_OPTION_SUPPRESS_BEHAVIOR*/, new IntPtr(optionPtr), sizeof(int));
18.  
    if (!success)
19.  
    {
20.  
    MessageBox.Show("Something went wrong !>?");
21.  
    }
22.  
    }