清除webBrowser 緩存和Cookie的解決方案

通過測試webBrowser與IE緩存和Cookie都存放在Local Settings\Temporary Internet Files，我們可以直接調用IE API進行清除

解決方案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臨時文件ShellExecute(IntPtr.Zero, "open", "rundll32.exe", " InetCpl.cpl,ClearMyTracksByProcess 255", "", ShowCommands.SW_HIDE);

其中ClearMyTracksByProcess?可進行選擇設置 ：

Temporary Internet Files? (Internet臨時文件)

RunDll32.exe InetCpl.cpl,ClearMyTracksByProcess 8

Cookies

RunDll32.exe InetCpl.cpl,ClearMyTracksByProcess 2

History (歷史記錄)

RunDll32.exe InetCpl.cpl,ClearMyTracksByProcess 1

?Form. Data (表單數據)

RunDll32.exe InetCpl.cpl,ClearMyTracksByProcess 16

?Passwords (密碼)

RunDll32.exe InetCpl.cpl,ClearMyTracksByProcess 32

?Delete All? (全部刪除)

RunDll32.exe InetCpl.cpl,ClearMyTracksByProcess 255

解決方案2：快速清除webBrowser Cookie

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

另外一個

[DllImport("wininet.dll", CharSet = System.Runtime.InteropServices.CharSet.Auto, SetLastError = true)]

public static extern bool InternetSetOption(int hInternet, int dwOption, IntPtr lpBuffer, int dwBufferLength);

private unsafe void SuppressWininetBehavior()

{

/* SOURCE: http://msdn.microsoft.com/en-us/library/windows/desktop/aa385328%28v=vs.85%29.aspx

* INTERNET_OPTION_SUPPRESS_BEHAVIOR (81):

* A general purpose option that is used to suppress behaviors on a process-wide basis.

* The lpBuffer parameter of the function must be a pointer to a DWORD containing the specific behavior to suppress.

* This option cannot be queried with InternetQueryOption.

*

* INTERNET_SUPPRESS_COOKIE_PERSIST (3):

* Suppresses the persistence of cookies, even if the server has specified them as persistent.

* Version: Requires Internet Explorer 8.0 or later.

*/

int option = (int)3/* INTERNET_SUPPRESS_COOKIE_PERSIST*/;

int* optionPtr = &option;

bool success = InternetSetOption(0, 81/*INTERNET_OPTION_SUPPRESS_BEHAVIOR*/, new IntPtr(optionPtr), sizeof(int));

if (!success)

{

MessageBox.Show("Something went wrong !>?");

}

}

總結

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