这是在 .net 3.5 winform 上运行的网络单点登录代码。只要 ie8 只打开一个选项卡，代码就可以在 ie6 或 ie8 上正常运行。问题是，如果用户打开一个新选项卡(选项卡 2、3 等)并导航到网站(组织内部的 Web 表单)，将执行以下代码，但 ie COM 自动化对象将返回 HTMLDocument对于第一个选项卡(选项卡 1)，即使选项卡 2 是事件选项卡。我无法在任何地方的 InternetExplorer 或 HTMLDocument 类中找到任何 IE 选项卡引用。实际上，在 IE COM 自动化文档中几乎没有任何与 IE 选项卡相关的文档。
AutoResetEvent ie2_NavigateCompleteAutoReset;
/// <summary>
/// Given the handle of an Internet Explorer instance, this method performs single sign on to
/// several known web login forms.
/// </summary>
/// <param name="iEFramHandle"></param>
private void WebFormSignOn(int iEFramHandle)
{
foreach (SHDocVw.InternetExplorer ie2 in new SHDocVw.ShellWindows())
{
if (ie2.HWND == iEFramHandle)
{
while (true)
{
Thread.Sleep(100);
if (ie2.ReadyState == SHDocVw.tagREADYSTATE.READYSTATE_COMPLETE)
{
try
{
mshtml.HTMLDocument doc = (mshtml.HTMLDocument)ie2.Document;
ie2.NavigateComplete2 += new SHDocVw.DWebBrowserEvents2_NavigateComplete2EventHandler(ie2_NavigateComplete2);
ie2_NavigateCompleteAutoReset = new AutoResetEvent(false);
/*Find the username element and enter the user's username*/
mshtml.HTMLInputElement userID = (mshtml.HTMLInputElement)doc.all.item("username", 0);
userID.value = Globals.Username;
/*Find the password element and enter the user's password*/
mshtml.HTMLInputElement pwd = (mshtml.HTMLInputElement)doc.all.item("password", 0);
pwd.value = Globals.GetAppName();
/*Find the submit element/button and click it*/
mshtml.HTMLInputElement btnsubmit = (mshtml.HTMLInputElement)doc.all.item("submit", 0);
btnsubmit.click();
/*Wait up to 5 seconds for the form submit to complete.
This is to prevent this method from being called multiple times
while waiting for the form submit and subsequent navigation from completing.*/
ie2_NavigateCompleteAutoReset.WaitOne(5000);
return;
}
catch (Exception err)
{
Logger.Log(err.ToString(), Logger.StatusFlag.Error, this.ToString(), "WebFormSignOn");
return;
}
finally
{
/*Remove the event handler*/
ie2.NavigateComplete2 -= ie2_NavigateComplete2;
}
}
}
}
}
}
void ie2_NavigateComplete2(object pDisp, ref object URL)
{
ie2_NavigateCompleteAutoReset.Set();
}
最佳答案
事实证明，IE 8 中的每个选项卡都有自己的进程和句柄。在原始代码中，我总是从第一个 IEFrame 获取句柄。我修改了代码(如下)，现在它可以工作了。变化在于，代码不仅查找第一个 IEFrame 句柄，还查找与触发调用 WebFormsSignOut 的方法的 url 相匹配的 LocationURL。
private void WebFormSignOn(int iEFramHandle,string addressBarText)
{
var shellWindows = new SHDocVw.ShellWindows();
foreach (SHDocVw.InternetExplorer ie2 in shellWindows)
{
if (ie2.LocationURL==addressBarText)
{ //rest of the code (see orignal post)
关于c# - IE 8 的 InternetExplorer COM 对象忽略事件选项卡，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/7337204/