c# webBrowser清除缓存问题

1.webBrowser的浏览器为ie。

2.通过清除ie缓存即可。

3.代码调用如下：

public enum ShowCommands : int
    {

        SW_HIDE = ,

        SW_SHOWNORMAL = ,

        SW_NORMAL = ,

        SW_SHOWMINIMIZED = ,

        SW_SHOWMAXIMIZED = ,

        SW_MAXIMIZE = ,

        SW_SHOWNOACTIVATE = ,

        SW_SHOW = ,

        SW_MINIMIZE = ,

        SW_SHOWMINNOACTIVE = ,

        SW_SHOWNA = ,

        SW_RESTORE = ,

        SW_SHOWDEFAULT = ,

        SW_FORCEMINIMIZE = ,

        SW_MAX = 

    }

[DllImport("shell32.dll")]
        static extern IntPtr ShellExecute(IntPtr hwnd, string lpOperation, string lpFile, string lpParameters, string lpDirectory, ShowCommands nShowCmd);

ShellExecute(IntPtr.Zero, "open", "rundll32.exe", " InetCpl.cpl,ClearMyTracksByProcess 8", "", ShowCommands.SW_HIDE);

其中ClearMyTracksByProcess 可进行选择设置 ：
Temporary Internet Files  （Internet临时文件）
ClearMyTracksByProcess
Cookies
ClearMyTracksByProcess
History (历史记录)
ClearMyTracksByProcess
 Form. Data （表单数据）
ClearMyTracksByProcess
 Passwords (密码）
ClearMyTracksByProcess
 Delete All  （全部删除）
ClearMyTracksByProcess