C # WebBrowser controls disable pop-up solutions like alert,confirm

The same code, I tried many times did not succeed. Finally succeeded because I didn't call this code in the right event .

Private voidInjectalertblocker () {htmlelement head= WbNav.Document.GetElementsByTagName ("Head")[0]; HtmlElement Scriptel= WbNav.Document.CreateElement ("Script"); Mshtml. IHTMLScriptElement element=(MSHTML.            IHTMLScriptElement) scriptel.domelement; stringAlertblocker ="Window.alert = function () {}"; Element.text=Alertblocker; Head.            AppendChild (Scriptel); Wbnav.scripterrorssuppressed=true; }

// prevent new Windows        from popping up Private　　　　void Wbnav_newwindow (object  sender, CancelEventArgs e)        {            true;        } //must be called in this event to be disabled, previously written in other events, wasted 2 hours.         Private void wbnav_navigated (object  sender, WebBrowserNavigatedEventArgs e)        {            injectalertblocker ();        }

In order to deepen the impression, special record.

BTW, don't forget to add Mshtml.dll this component. Full Name: Microsoft HTML Object Library

C # WebBrowser controls disable pop-up solutions like alert,confirm