In WPF applicaiton how to get View Source for a page loaded in Webbrowser control

Question

Hi, In WPF applicaiton how to get View Source for a page loaded in Webbrowser control After navigating, Webbrowser.document is null. How can I achieve this.

Sam Hobbs · Answer

A lot of that code appears unnecessary to me, but I could be wrong. In that code you have: IServiceProvider lObjServiceProvider = (IServiceProvider)lObjWwbBwserDocument.Document.DomDocument; In that, lObjWwbBwserDocument.Document would be Webbrowser.document. Are you sure it is null? Since I don't know what you need to do, I still cannot help much. As I said, I think that most of that code is likely unnecessary. Without more information about what you need to do, the sample code does not help me help you. As best as I can tell, you are not using WPF; you are using Windows Forms. Perhaps my article Introduction to Web Site Scraping will help.

Sreenath G · Answer

Here is the code I have tried out…But with this I am not getting actual source for different URLS… WebBrowser WebBrowser1 = new WebBrowser (); void lFnLoadPage() { try { string lStrUrl = "http://www.google.com" ; Uri lObjURI = new Uri (lStrUrl); WebBrowser1.DocumentCompleted += new System.Windows.Forms. WebBrowserDocumentCompletedEventHandler (lObjHandleWebserverDocument); WebBrowser1.Navigate(lObjURI); } catch ( Exception ) { } } private void lObjHandleWebserverDocument( object sender, System.Windows.Forms. WebBrowserDocumentCompletedEventArgs e) { try { Guid lObjSID_SWebBrowserApp = new Guid ( "0002DF05-0000-0000-C000-000000000046" ); var lObjWwbBwserDocument = (( WebBrowser )sender); IServiceProvider lObjServiceProvider = ( IServiceProvider )lObjWwbBwserDocument.Document.DomDocument; Guid lObjServiceGuid = lObjSID_SWebBrowserApp; Guid lObjiid = typeof (SHDocVw. IWebBrowser2 ).GUID; SHDocVw. IWebBrowser2 lObjmyWebBrowser2 = (SHDocVw. IWebBrowser2 )lObjServiceProvider.QueryService( ref lObjServiceGuid, ref lObjiid); mshtml. HTMLDocument lObjDocument = (mshtml. HTMLDocument )lObjmyWebBrowser2.Document; string lStrSource = lObjDocument.documentElement.innerHTML; (( WebBrowser )sender).Dispose(); } catch ( Exception ) { throw ; } }

Sam Hobbs · Answer

Did you wait for the document to complete? If not, then navigation is not complete. I might be able to help you more with more information from you.