i am trying to use the code in my vb.net 2005 program. i am getting the "loading" and never getting complete. This is exactly what i have been looking for. if you have any ideas, please let me know. here is my code: Imports System.Data.SqlClient Imports System.Data Imports System Imports System.Runtime.InteropServices Public Class Class1 Public Enum HRESULT S_OK = 0 S_FALSE = 1 E_NOTIMPL = &H80004001 E_INVALIDARG = &H80070057 E_NOINTERFACE = &H80004002 E_FAIL = &H80004005 E_UNEXPECTED = &H8000FFFF End Enum <ComVisible(True), ComImport(), Guid("7FD52380-4E07-101B-AE2D-08002B2EC713"), _ InterfaceTypeAttribute(ComInterfaceType.InterfaceIsIUnknown)> _ Public Interface IPersistStreamInit : Inherits IPersist Shadows Sub GetClassID(ByRef pClassID As Guid) <PreserveSig()> Function IsDirty() As Integer <PreserveSig()> Function Load(ByVal pstm As System.Runtime.InteropServices.ComTypes.IStream) As HRESULT <PreserveSig()> Function Save(ByVal pstm As System.Runtime.InteropServices.ComTypes.IStream, _ <MarshalAs(UnmanagedType.Bool)> ByVal fClearDirty As Boolean) As HRESULT <PreserveSig()> Function GetSizeMax(<InAttribute(), Out(), _ MarshalAs(UnmanagedType.U8)> ByRef pcbSize As Long) As HRESULT <PreserveSig()> Function InitNew() As HRESULT End Interface <ComVisible(True), ComImport(), Guid("0000010c-0000-0000-C000-000000000046"), _ InterfaceTypeAttribute(ComInterfaceType.InterfaceIsIUnknown)> _ Public Interface IPersist Sub GetClassID(ByRef pClassID As Guid) End Interface Declare Function CreateStreamOnHGlobal Lib "ole32" (ByVal hGlobal As IntPtr, ByVal fDeleteOnRelease As Boolean, _ ByRef ppstm As System.Runtime.InteropServices.ComTypes.IStream) As Long ' Please note that i copied above IPersistStream definition from sp!ke. I owe him a drink ;). Private Function FindXMLPageName(ByVal strHtml As String) As String Try 'We will use HTMLDocument to open and load remote webpage in to IHTMLDocument2 'we can't use the same HTMLDocument as it is needed for persistance(IPersistStream) 'we also can't use IHTMLDocument2 object as it will not have DOM interface faetures enabled. we will use IHTMLDocument3. Dim url As String = "http://java.sun.com" Dim objMSHTML As New mshtml.HTMLDocument Dim objMSHTML2 As mshtml.IHTMLDocument2 Dim objMSHTML3 As mshtml.IHTMLDocument3 Dim x As Integer = 10 'a dummy variable Dim objIPS As IPersistStreamInit 'here is the whole trick objIPS = DirectCast(objMSHTML, IPersistStreamInit) objIPS.InitNew() 'you have to do it, if not you will always have readyState as "loading" objMSHTML2 = objMSHTML.createDocumentFromUrl(url, vbNullString) Do Until objMSHTML2.readyState = "complete" x = x + 1 Loop objMSHTML3 = DirectCast(objMSHTML2, mshtml.IHTMLDocument3) Catch ex As Exception End Try End Function End Class

hi Balajidl, I was wondering if you new why many elements HTLMDocument3, like frames get a System.InvalidCastException?

Thanks John, I added your suggestion as well.
Balaji

Hi Balajidl,
why i am sometimes i am getting the below error?
and even when i am not getting the erorr, i cann't get the remote page?
Me.lbl_Msg.Text = objMSHTML3.body.outerHTML
JIT Debugging failed with the following error: Access is denied
JIT Debugging was initiated by the user account 'BCname\ASPNET'.
Check the documentation index for 'just-in-time debugging, errors' for more information

Hi Balajidl, thank you for your response

This is the error I am getting when I run the code above.

JIT Debugging failed with the following error: Access is denied
JIT Debugging was initiated by the user account 'BCname\ASPNET'.
Check the documentation index for 'just-in-time debugging, errors' for more information

Also when I click OK on the above error message dialog, it asks me to refresh the page, when I refresh the page, then it loads the remote web page successfully.

I am running this code on my local IIS server, and using VS 2003.

Thank you.

Sorry, Balajidl
This is what I am trying to do.

I was trying to get a remote web page into my website and manipulate it. Also I want you to know that I am able to do same thing in windows forms application successfully.

Hi Balaji,

BTW, one more thing, the following code is not working with me. i have to Comment it.

Application.DoEvents() 'Suggested by John
'DoEvents' is not member of system.Web.HttpApplicationState

Did you made more progress on this? I'm successfully using MSHTML, but I have a weird behavior. If you start the ASP.NET (1.1), use MSHTML to parse HTML, and then do a DLL update (like re-compiling the code), the existing aspnet_wp.exe crashes, I've get the popup (JIT Debugging failed...), and a new instance of aspnet_wp.exe is created. Refreshing the page works this time. It looks like the old aspnet_wp.exe is holding some resource that causes a side-by-side run to fail. Then it crashes and all is good again.

hello I have a problem too i'm using mshtml under asp.net it works fine. the problem is when i try to get Dim sLocation As String = objHtml2.location.toString() objHtml2 is Ihtmldocument2 i this point i'm geting Error System.InvalidCastException: No such interface supported but it works under windows.form please help

Hi Dim iLoc As mshtml.IHTMLLocation --- this line generate an Error System.InvalidCastException: No such interface supported iLoc = oHtml2.location --- sLocation = oLoc.href And only under Asp.NET , under window forms Application it works fine

I have it working, but when I execute the URL, it doesn't pop up in a new window. How am I supposed to use this script? Please provide an example. Seems like it would be useful, if I can open a browser window (IE) with the url, and populate some fields.

OK, thanks for clearing it up, page load event makes sense.

Hello Balaji I'm trying to make same thing using C#, but can't connect MSHTML.dll to my web page... Can u write step by step instruction: how to connect MSHTML to the aspx web pages.

umm i'm still can not get remote page i recieve RPC_E_SERVERFAULT error when using

IHTMLDocument4 objMSHTML = new HTMLDocumentClass();

IHTMLDocument2 objMSHTML2;
objMSHTML2 = objMSHTML.createDocumentFromUrl(url, options);

Hi Balaji, I read in your blog and this discussion . Can you send the .aspx and .aspx.vb code via email to me. Thank you very much. My email : milk_flower@hotmail.com. Best Regards. Please help me and sorry for my bad English, I am from Vietnam.

Having a bit of a nightmare converting this to C# - don't suppose you have code that works?

Hi Martin
Thanks for the C# version of the problem.
BTW, i have used IHTMLDocument2 & 3 because of the persistance and methods not found issues. I have quoted them in the sample code.
Regards Balaji

Hallo Hongtao,
in fact there in c# ver. is no DoEvents. I have tried even this version and I regulary had problems with this version. I am open for any solution, but I dont thing this is language issue (c#). Sometimes this Worked well, but after IIS restart it was unfortunately not working anymore. Sometimes parsing was also very slow. I finally decided to use thirdparty html parser (MILHTMLParser).

Balaji, Your blog is excellent. Your solution to loading into a mshtml object was exactly what I needed. Now I have another problem and I hope that you might know the solution. I have a small bit of HTML saved in a string variable that I want to load into IHTMLDocument2. Is there a way to do this?

I figured it out. Add line objMSHTML.Clear() after you are done with the object.

Hi Balaji...very nice code...however I have a question.. Is it possible to reduce the round trips to the HTML document by both populating the objMSHTML2 (as you have done in the example) and a WebBrowser. I tried populating 'your' result into a WebBrowser and of course the other way (dropping the IPS code) which I know doesn't seem to work (hence your code). In summary, I am trying to display the WebPage but ALSO use the DOM to extract the information from the web page...ANy help appreciated...

hi Balaji, i'm programming with mshtml, but I have a problem with messages that are thrown by some websites. These messages are security alerts, login boxes..etc.When one of these is thrown the application stop. Do you know how can I control this?

Hi all, thanks for the code. mshtml object was exactly what I needed. But I'm facing a problem when I try to using the object. I got this error "Access is denied. (Exception from HRESULT: 0x80070005 (E_ACCESSDENIED))" when I'm trying to do something like "element.setAttribute("xpath", path)" Thanks

Hii I'm new to the world of asp.net n c#.net I'm working on MSHTML in C#. The following is my code ******************************************* private void btnCheck_Click(object sender, EventArgs e) { int intI,intJ; //string strImagePath = ""; ArrayList objArrayList = new ArrayList(); try { if(objWebBrowser.ReadyState != WebBrowserReadyState.Complete) { Console.WriteLine(objWebBrowser.ReadyState); Application.DoEvents(); } HtmlDocument objHtmlDocument = objWebBrowser.Document; Console.WriteLine("******************************The Domain is:"+objHtmlDocument.Domain); MSHTML.IHTMLDocument2 objIHTMLDocument = (MSHTML.IHTMLDocument2)objWebBrowser.Document.DomDocument; if (objIHTMLDocument.frames.length > 0) { MSHTML.FramesCollection objFramesCollection = objIHTMLDocument.frames; for ( intI = 0; intI < objFramesCollection.length; intI++) { object idx = (object)intI; MSHTML.HTMLWindow2 objHTMLWindow2 = (MSHTML.HTMLWindow2)objFramesCollection.item (ref idx); MSHTML.HTMLDocument objHTMLDocument = (MSHTML.HTMLDocument)objHTMLWindow2.document; objArrayList.Add(objHTMLWindow2); Console.WriteLine("-------------------"); Console.WriteLine(objHTMLWindow2.name); Console.WriteLine("-------------------"); HtmlElementCollection objImageCollections = objHtmlDocument.GetElementsByTagName("object"); for ( intJ = 0; intJ < objImageCollections.Count; intJ++) { strImagePath = objImageCollections[intJ].GetAttribute("src"); Console.WriteLine(strImagePath); } } /* for (intI = 0; intI < objArrayList.Count; intI++) { //objComponent = (Component)objArrayList[intI]; Console.WriteLine(objArrayList[intI].GetType()); }*/ } ******************************************* I'm getting the following exception at MSHTML.HTMLDocument objHTMLDocument = (MSHTML.HTMLDocument)objHTMLWindow2.document; **The Exception is A first chance exception of type 'System.UnauthorizedAccessException' occurred in mscorlib.dll at System.RuntimeType.ForwardCallToInvokeMember(String memberName, BindingFlags flags, Object target, Int32[] aWrapperTypes, MessageData& msgData) at MSHTML.DispHTMLWindow2.get_document() at WindowsFormsApplication1.Form1.btnCheck_Click(Object sender, EventArgs e) in E:\cSharp_workspace\Parser\Parser\Form1.cs:line 85 *********************************** Can any one help me out with this exception?? My task is to collect images n flash files from various Frames on any site but this exception is holding me back How shuld I go further??