blocks|key|1653659|text|要清除会话(如HttpOnly+cookies)，可以使用wininet.dll中的InternetSetOption()。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1653660|private+const+int+INTERNET_OPTION_END_BROWSER_SESSION+=+42;

[DllImport("wininet.dll",+SetLastError+=+true)]
private+static+extern+bool+InternetSetOption(IntPtr+hInternet,+int+dwOption,+IntPtr+lpBuffer,+int+lpdwBufferLength);|code-block|syntax|javascript|1653661|并在需要清除会话时使用此方法。|1653662|InternetSetOption(IntPtr.Zero,+INTERNET_OPTION_END_BROWSER_SESSION,+IntPtr.Zero,+0);
webBrowser1.Document.Window.Navigate(url);|1653663|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

To clear session (such as HttpOnly cookies), you can use InternetSetOption() from wininet.dll.

<pre><code>private const int INTERNET_OPTION_END_BROWSER_SESSION = 42;

[DllImport("wininet.dll", SetLastError = true)]
private static extern bool InternetSetOption(IntPtr hInternet, int dwOption, IntPtr lpBuffer, int lpdwBufferLength);
</code></pre>

and use this method whenever need to clear session.

<pre><code>InternetSetOption(IntPtr.Zero, INTERNET_OPTION_END_BROWSER_SESSION, IntPtr.Zero, 0);
webBrowser1.Document.Window.Navigate(url);
</code></pre>

blocks|key|1653710|text|我尝试了所有方法来清除表单数据，这样下一个用户就不会看到以前的电子邮件地址，等等。我最终这样做是为了清除cookie……|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1653711|string[]+theCookies+=+System.IO.Directory.GetFiles(Environment.GetFolderPath(Environment.SpecialFolder.Cookies));
foreach+(string+currentFile+in+theCookies)
{
+++try
+++{
++++++System.IO.File.Delete(currentFile);
+++}
+++catch+(Exception+ex)
+++{
+++}
}|code-block|syntax|javascript|1653712|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

I tried everything to clear the form data so the next user would not see the previous email address, etc. I ended up doing this to clear the cookies...

<pre><code>string[] theCookies = System.IO.Directory.GetFiles(Environment.GetFolderPath(Environment.SpecialFolder.Cookies));
foreach (string currentFile in theCookies)
{
 try
 {
 System.IO.File.Delete(currentFile);
 }
 catch (Exception ex)
 {
 }
}
</code></pre>

blocks|key|1653835|text|Private+Const+INTERNET_OPTION_END_BROWSER_SESSION+As+Integer+=+42

++++<DllImport("wininet.dll",+SetLastError:=True)>
++++Public+Shared+Function+InternetSetOption(hInternet+As+IntPtr,+dwOption+As+Integer,+lpBuffer+As+IntPtr,+lpdwBufferLength+As+Integer)+As+Boolean
++++End+Function

++++Private+Sub+WebBrowserFormName_Closed(ByVal+sender+As+Object,+ByVal+e+As+System.EventArgs)+Handles+Me.Closed
++++++++InternetSetOption(IntPtr.Zero,+INTERNET_OPTION_END_BROWSER_SESSION,+IntPtr.Zero,+0)
++++End+Sub|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1653836|只是在VB中张贴寻找这个答案的人。编码快乐！|unstyled|1653837|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|J|8|@]|9|@]|A|$]]|$1|G|3|-4|5|F|7|K|8|@]|9|@]|A|$]]]|H|$]]

<pre><code>Private Const INTERNET_OPTION_END_BROWSER_SESSION As Integer = 42

 &lt;DllImport("wininet.dll", SetLastError:=True)&gt;
 Public Shared Function InternetSetOption(hInternet As IntPtr, dwOption As Integer, lpBuffer As IntPtr, lpdwBufferLength As Integer) As Boolean
 End Function

 Private Sub WebBrowserFormName_Closed(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Closed
 InternetSetOption(IntPtr.Zero, INTERNET_OPTION_END_BROWSER_SESSION, IntPtr.Zero, 0)
 End Sub
</code></pre>

Just posting for someone looking for this answer in VB.
Happy coding!!!

blocks|key|1653525|text|webBrowser1.Document.Cookies+=+"“不起作用。此调用不会清除cookie。webBrowser1.Document.Cookies+=在javascript中就像document.cookie一样工作。您应该找到想要清除的cookie，sa+'Session'，使用webBrowser1.Document.Cookies+=+"Session+=+''"；它将根据您的需要将cookie设置为'‘。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1653526|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

webBrowser1.Document.Cookies = "" won't work. This call will not clear the cookie. webBrowser1.Document.Cookies = just works as document.cookie in javascript. 
You should find the cookie you want to clear, sa 'Session', use
webBrowser1.Document.Cookies = "Session = ''";
It will just set the cookie to '', as you want.

blocks|key|1439136|text|下面的解决方案对我很有效-|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1439137|webBrowser1.Document.ExecCommand("ClearAuthenticationCache",+false,+null);|code-block|syntax|javascript|1439138|这是在下面的帖子中建议删除cookies+https://stackoverflow.com/a/21512662/6291511|offset|length|1439139|你可以在这里找到更多关于这个的信息-+https://msdn.microsoft.com/en-us/library/system.windows.forms.htmldocument.execcommand(v=vs.110).aspx|1439140|希望它能有所帮助！|1439141|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/a/21512662/6291511|1|https://msdn.microsoft.com/en-us/library/system.windows.forms.htmldocument.execcommand(v=vs.110).aspx^0|0|0|L|18|0|0|J|2T|1|0|0^^$0|@$1|2|3|4|5|6|7|Y|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|Z|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|10|8|@]|9|@$I|11|J|12|1|13]]|A|$]]|$1|K|3|L|5|6|7|14|8|@]|9|@$I|15|J|16|1|17]]|A|$]]|$1|M|3|N|5|6|7|18|8|@]|9|@]|A|$]]|$1|O|3|-4|5|6|7|19|8|@]|9|@]|A|$]]]|P|$Q|$5|R|S|T|A|$U|V]]|W|$5|R|S|T|A|$U|X]]]]

Following solution worked for me -

<pre><code>webBrowser1.Document.ExecCommand("ClearAuthenticationCache", false, null);
</code></pre>

This was suggested in following post for deleting cookies - <a href="https://stackoverflow.com/a/21512662/6291511">https://stackoverflow.com/a/21512662/6291511</a>

You can find more info regarding this here - <a href="https://msdn.microsoft.com/en-us/library/system.windows.forms.htmldocument.execcommand(v=vs.110).aspx" rel="nofollow noreferrer">https://msdn.microsoft.com/en-us/library/system.windows.forms.htmldocument.execcommand(v=vs.110).aspx</a>

Hope it helps!!!

blocks|key|1653443|text|你必须意识到，从web服务器的角度来看，跟踪“会话状态”的方式是通过向客户端浏览器提供一个带有会话id的cookie。当浏览器回发到服务器时，该cookie允许服务器将请求与存储的会话状态相关联。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1653444|因此，解决方案是清除webBrowser控件的cookies。例如webBrowser1.Document.Cookies+=+""，我想这应该可以。|1653445|ASP.NET还有所谓的“无cookieless会话”，它的工作原理是将会话id添加到url中。因此，如果这是服务器使用的机制，您可以尝试将其从url中过滤出来。但是你不会看到太多，它主要是基于cookie的会话状态。|1653446|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|H|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|I|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|J|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|G|$]]

You have to realise that the way "session state" is tracked, from the point of view of a web server, is by giving the client browser a cookie with a session-id in it. When the browser posts back to the server, that cookie allows the server to associate the request with a stored session state.

So the solution is to clear the cookies of the webBrowser control. Eg webBrowser1.Document.Cookies = "", that should work I think.

ASP.NET also has what it calls "cookieless sessions", which work by adding the session id to the url. So if that's the mechanism used by the server, you could try to filter that out of the url. But you won't see that much, it's mostly the cookie based session state.

blocks|key|1653758|text|Windows7使用index.dat文件来存储.Dat和历史记录，这样比尔和他在中央情报局的朋友就可以窥探你，并尽他们所能确保你不会删除这些文件，并确保在复制后不会删除这些文件，因为Windows正在运行时使用了“特殊文件夹”并且cookie文件保持锁定状态。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1653759|这不是一个完美的解决方案，但它在某种程度上适用于列表中的完整文件名。|1653760|int+DeletedCount+=+0;
++++++++int+CouldNotDelete+=+0;
++++++++KillExplorer();
++++++++foreach+(string+DatFile+in+DatFiles)
++++++++{//Do+not+put+break+point+or+step+into+the+code+else+explorer+will+start+and+the+file+will+become+locked+again
++++++++++++DirectoryInfo+DInfo=new+DirectoryInfo(DatFile.Replace("index.dat",""));
++++++++++++FileAttributes+OldDirAttrib+=+DInfo.Attributes;
++++++++++++DInfo.Attributes++=+FileAttributes.Normal;//Set+to+normal+else+can+not+delete
++++++++++++FileInfo+FInfo+=+new+FileInfo(DatFile);
++++++++++++FileAttributes+OldFileAttrib+=+FInfo.Attributes;
++++++++++++SetAttr(FInfo,+FileAttributes.Normal);
++++++++++++TryDelete(FInfo);
++++++++++++SetAttr(FInfo,+OldFileAttrib);//Sets+back+to+Hidden,system,directory,notcontentindexed
++++++++++++if+(File.Exists(DatFile))
++++++++++++++++CouldNotDelete%2B%2B;
++++++++++++else
++++++++++++++++DeletedCount%2B%2B;

++++++++}
++++++++if+(DatFiles.Count>0)//Lets+get+explorer+running+again
++++++++++++System.Diagnostics.Process.Start(DatFiles[DatFiles.Count+-+1].Replace("index.dat",+""));
++++++++else
++++++++++++System.Diagnostics.Process.Start("explorer");
++++++++System.Windows.Forms.MessageBox.Show("Deleted+"+%2B+DeletedCount+%2B+"+Index.dat+files+with+"+%2B+CouldNotDelete+%2B+"+Errors");


++++++++return+"Deleted+"+%2B+DeleteFileCount+%2B+"+Files+";
++++}

++++private+void+KillExplorer()
++++{
++++++++foreach+(Process+P+in+Process.GetProcesses())
++++++++{//Kill+both+these+process+because+these+are+the+ones+locking+the+files
++++++++++++if+(P.ProcessName.ToLower()+==+"explorer")
++++++++++++++++P.Kill();
++++++++++++if+(P.ProcessName.ToLower()+==+"iexplore")
++++++++++++++++P.Kill();
++++++++}
++++}

++++private+bool+TryDelete(FileInfo+Info)
++++{
++++++++try
++++++++{
++++++++++++Info.Delete();
++++++++++++return+true;
++++++++}
++++++++catch+
++++++++{return+false;}
++++}

++++private+void+SetAttr(FileInfo+Info,FileAttributes+Attr)
++++{
++++++++try
++++++++{
++++++++++++Info.Attributes+=+Attr;
++++++++}
++++++++catch+{+}
++++}|code-block|syntax|javascript|1653761|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Windows 7 uses index.dat files to store cookies and history so that Bill and his freinds at CIA central can snoop on you and have done all they can to ensure you can not delete these files and that after taking copies because 'Special Folders' are used and the .Dat files remain locked whilst windows is running.

This is not a perfect solution but it works to some degree with the full file names being in a List.

<pre><code>int DeletedCount = 0;
 int CouldNotDelete = 0;
 KillExplorer();
 foreach (string DatFile in DatFiles)
 {//Do not put break point or step into the code else explorer will start and the file will become locked again
 DirectoryInfo DInfo=new DirectoryInfo(DatFile.Replace("index.dat",""));
 FileAttributes OldDirAttrib = DInfo.Attributes;
 DInfo.Attributes = FileAttributes.Normal;//Set to normal else can not delete
 FileInfo FInfo = new FileInfo(DatFile);
 FileAttributes OldFileAttrib = FInfo.Attributes;
 SetAttr(FInfo, FileAttributes.Normal);
 TryDelete(FInfo);
 SetAttr(FInfo, OldFileAttrib);//Sets back to Hidden,system,directory,notcontentindexed
 if (File.Exists(DatFile))
 CouldNotDelete++;
 else
 DeletedCount++;

 }
 if (DatFiles.Count&gt;0)//Lets get explorer running again
 System.Diagnostics.Process.Start(DatFiles[DatFiles.Count - 1].Replace("index.dat", ""));
 else
 System.Diagnostics.Process.Start("explorer");
 System.Windows.Forms.MessageBox.Show("Deleted " + DeletedCount + " Index.dat files with " + CouldNotDelete + " Errors");


 return "Deleted " + DeleteFileCount + " Files ";
 }

 private void KillExplorer()
 {
 foreach (Process P in Process.GetProcesses())
 {//Kill both these process because these are the ones locking the files
 if (P.ProcessName.ToLower() == "explorer")
 P.Kill();
 if (P.ProcessName.ToLower() == "iexplore")
 P.Kill();
 }
 }

 private bool TryDelete(FileInfo Info)
 {
 try
 {
 Info.Delete();
 return true;
 }
 catch 
 {return false;}
 }

 private void SetAttr(FileInfo Info,FileAttributes Attr)
 {
 try
 {
 Info.Attributes = Attr;
 }
 catch { }
 }
</code></pre>

How can I clear current session data (cookies, cached data, auth sessions, etc) without restarting the application?

Update: I'm talking about WebBrowser control in Windows.Forms, not the ASP.Net session.

How to clear System.Windows.Forms.WebBrowser session data?

身份验证

服务器

Windows

如何在不重启应用程序的情况下清除当前会话数据(cookies、缓存数据、身份验证会话等)？更新:我说的是Windows.Forms中的WebBrowser控制，而不是ASP.Net会话。

问如何清除System.Windows.Forms.WebBrowser会话数据？
EN

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问如何清除System.Windows.Forms.WebBrowser会话数据？EN

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问如何清除System.Windows.Forms.WebBrowser会话数据？
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