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AxWebBrowser problems in VS2005I can instantiate an "AxWebBrowser browser" and refer to its members, properties, and methods. I'm having trouble with the AxWebBrowser.Document: When I print browser.Document.GetType().ToString() at runtime, I get "mshtml.HTMLDocumentClass". But The VS2005 compiler does not recognize the member AxWebBrowser.Document as anything other than a System.Object -- e.g., "Define doc As mshtml.HTMLDocumentClass = browser.Document" will fail to compile with "Type 'mshtml.HTMLDocumentClass' is not defined." When I try to install the missing component(s) via "aximp" and "tlbimp", there seems to be no effect whatsoever. The commands I run in the project directory, in a VS.NET Command Prompt, are: aximp c:\windows\system32\shdocvw.dll tlbimp mshtml.tlb The only suspicious behavior that goes on during the installation itself is a short list of warnings generated by tlbimp. They are as follows: TlbImp : warning TI0000 : At least one of the arguments for 'IActiveIMMApp.GetDe faultIMEWnd' cannot be marshaled by the runtime marshaler. Such arguments will therefore be passed as a pointer and may require unsafe code to manipulate. TlbImp : warning TI0000 : The type library importer could not convert the signat ure for the member '__MIDL___MIDL_itf_mshtml_0256_0010.hbmpChecked'. TlbImp : warning TI0000 : The type library importer could not convert the signat ure for the member '__MIDL___MIDL_itf_mshtml_0256_0010.hbmpUnchecked'. TlbImp : warning TI0000 : The type library importer could not convert the signat ure for the member '__MIDL___MIDL_itf_mshtml_0256_0010.hbmpItem'. TlbImp : warning TI0000 : The type library importer could not convert the signat ure for the member '_userBITMAP.pBuffer'. TlbImp : warning TI0000 : The type library importer could not convert the signat ure for the member '__MIDL___MIDL_itf_mshtml_0256_0011.hbmpChecked'. TlbImp : warning TI0000 : The type library importer could not convert the signat ure for the member '__MIDL___MIDL_itf_mshtml_0256_0011.hbmpUnchecked'. TlbImp : warning TI0000 : The type library importer could not convert the signat ure for the member '__MIDL___MIDL_itf_mshtml_0256_0011.hbmpItem'. TlbImp : warning TI0000 : The type library importer could not convert the signat ure for the member '_FLAGGED_BYTE_BLOB.abData'. Type library imported to MSHTML.dll Whether or not these warnings are significant enough to prevent proper installation, I do not know. In any event, the control doesn't seem to be getting installed correctly at all. Any advice on doing this correctly or determing the point of failure of this component's installation in the dev environment? -------- Bonus points: I am afraid I'm missing the bigger picture with typecasting in VB .NET 2.0. Even though the compiler thinks AxWebBrowser.Document is a simple Object, it still lets me reference members within it that only exist in mshtml.HTMLDocumentClass. That is, it doesn't complain that System.Object has no such member as "documentelement". In fact, I've even tried nonsense strings like "foobar" -- anything goes! The compiler will allow me to pretend that AxWebBrowser.Document has any imaginary members I want it to have, and then waits until runtime to see if I'm right. If the member does exist, then great, the runtime environment hands it to me as a plain System.Object. (From there, I can even continue printing out GetType().ToString(). In this manner I've learned of the existence of a whole slew of classes I should have but don't have, such as mshtml.HTMLHtmlElementClass.) Otherwise -- that is, if the member doesn't exist ("foobar" or what have you) -- it hangs forever trying to search for it. My questions are: 1) Why is the compiler so relaxed about missing datatypes, coercing them upwards into Objects instead of complaining that they're missing? 2) Why does the compiler get so lenient about nonexistent members whenever this happens? 3) Why does VB .NET hang whenever it can't find something, rather than gracefully reporting the problem (e.g., by throwing an exception)? Dave,
Are you using the AxWebBrowser of the Net 2.0 Webbrowser. Cor Show quoteHide quote "Dave Booker" <dbooksta@newsgroup.nospam> schreef in bericht news:1F96800F-5F4A-4749-BADD-B7CB0C7EFA4E@microsoft.com... > It appears that I cannot correctly install the AxWebBrowser in VS2005. > > I can instantiate an "AxWebBrowser browser" and refer to its members, > properties, and methods. I'm having trouble with the > AxWebBrowser.Document: > When I print browser.Document.GetType().ToString() at runtime, I get > "mshtml.HTMLDocumentClass". But The VS2005 compiler does not recognize > the > member AxWebBrowser.Document as anything other than a System.Object -- > e.g., > "Define doc As mshtml.HTMLDocumentClass = browser.Document" will fail to > compile with "Type 'mshtml.HTMLDocumentClass' is not defined." > > When I try to install the missing component(s) via "aximp" and "tlbimp", > there seems to be no effect whatsoever. The commands I run in the project > directory, in a VS.NET Command Prompt, are: > > aximp c:\windows\system32\shdocvw.dll > tlbimp mshtml.tlb > > The only suspicious behavior that goes on during the installation itself > is > a short list of warnings generated by tlbimp. They are as follows: > > TlbImp : warning TI0000 : At least one of the arguments for > 'IActiveIMMApp.GetDe faultIMEWnd' cannot be marshaled by the runtime > marshaler. Such arguments will therefore be passed as a pointer and may > require unsafe code to manipulate. > TlbImp : warning TI0000 : The type library importer could not convert the > signat ure for the member > '__MIDL___MIDL_itf_mshtml_0256_0010.hbmpChecked'. > TlbImp : warning TI0000 : The type library importer could not convert the > signat ure for the member > '__MIDL___MIDL_itf_mshtml_0256_0010.hbmpUnchecked'. > TlbImp : warning TI0000 : The type library importer could not convert the > signat ure for the member '__MIDL___MIDL_itf_mshtml_0256_0010.hbmpItem'. > TlbImp : warning TI0000 : The type library importer could not convert the > signat ure for the member '_userBITMAP.pBuffer'. > TlbImp : warning TI0000 : The type library importer could not convert the > signat ure for the member > '__MIDL___MIDL_itf_mshtml_0256_0011.hbmpChecked'. > TlbImp : warning TI0000 : The type library importer could not convert the > signat ure for the member > '__MIDL___MIDL_itf_mshtml_0256_0011.hbmpUnchecked'. > TlbImp : warning TI0000 : The type library importer could not convert the > signat ure for the member '__MIDL___MIDL_itf_mshtml_0256_0011.hbmpItem'. > TlbImp : warning TI0000 : The type library importer could not convert the > signat ure for the member '_FLAGGED_BYTE_BLOB.abData'. > Type library imported to MSHTML.dll > > Whether or not these warnings are significant enough to prevent proper > installation, I do not know. In any event, the control doesn't seem to be > getting installed correctly at all. Any advice on doing this correctly or > determing the point of failure of this component's installation in the dev > environment? > > -------- > > Bonus points: I am afraid I'm missing the bigger picture with typecasting > in > VB .NET 2.0. Even though the compiler thinks AxWebBrowser.Document is a > simple Object, it still lets me reference members within it that only > exist > in mshtml.HTMLDocumentClass. That is, it doesn't complain that > System.Object > has no such member as "documentelement". In fact, I've even tried > nonsense > strings like "foobar" -- anything goes! The compiler will allow me to > pretend that AxWebBrowser.Document has any imaginary members I want it to > have, and then waits until runtime to see if I'm right. If the member > does > exist, then great, the runtime environment hands it to me as a plain > System.Object. (From there, I can even continue printing out > GetType().ToString(). In this manner I've learned of the existence of a > whole slew of classes I should have but don't have, such as > mshtml.HTMLHtmlElementClass.) Otherwise -- that is, if the member doesn't > exist ("foobar" or what have you) -- it hangs forever trying to search for > it. My questions are: > 1) Why is the compiler so relaxed about missing datatypes, coercing them > upwards into Objects instead of complaining that they're missing? > 2) Why does the compiler get so lenient about nonexistent members whenever > this happens? > 3) Why does VB .NET hang whenever it can't find something, rather than > gracefully reporting the problem (e.g., by throwing an exception)? I'm trying to use the AxWebBrowser. As far as I can tell the .NET 2.0
WebBrowser doesn't expose all of the functionality I need. Show quoteHide quote "Cor Ligthert [MVP]" wrote: > Dave, > > Are you using the AxWebBrowser of the Net 2.0 Webbrowser. > > Cor Dave,
I and probably me not alone (and seeing people strugling with that) did never succeed in direct instancing the AxWebbrowser. Did you already drag an webbrowser on a form from the toolbox? Cor Show quoteHide quote "Dave Booker" <dbooksta@newsgroup.nospam> schreef in bericht news:B5301C51-EBDC-41AB-8797-B0B26C45A6DC@microsoft.com... > I'm trying to use the AxWebBrowser. As far as I can tell the .NET 2.0 > WebBrowser doesn't expose all of the functionality I need. > > "Cor Ligthert [MVP]" wrote: > >> Dave, >> >> Are you using the AxWebBrowser of the Net 2.0 Webbrowser. >> >> Cor > "Dave Booker" <dbooksta@newsgroup.nospam> schrieb: Which functionality do you need? Note that > I'm trying to use the AxWebBrowser. As far as I can tell the .NET 2.0 > WebBrowser doesn't expose all of the functionality I need. 'WebBrowser1.Document.DomDocument' provides access to the unmanaged document object. -- M S Herfried K. Wagner M V P <URL:http://dotnet.mvps.org/> V B <URL:http://classicvb.org/petition/> Hi Dave,
Thank you for posting. The Documnent property of the AxWebBrowser is Object typed and read-only. There's a Navigate() method in the AxWebBrowser class which could be used to display a url resource such as a html page, a jpg file, a word document and so on. Then at run-time, we could use the Document property of the AxWebBrowser to get an object representing the resource currently displayed in the AxWebBrowser control. The type of the Document varies with the type of the resource which the AxWebBrowser is browsing. For example, if the resource is a html page, the type of the Document will be "mshtml.HTMLDocumentClass". And if the resource is a word document, the type of the Document will be "Microsoft.Office.Interop.Word.DocumentClass". That is to say, the compiler could not determine which type the Document is at design-time. Because the resource is accessed and displayed at run-time, the compiler could not check out any error when compiling even if the resource doesn't exist. When running, a default web page saying "The page cannot be displayed" will appear in the AxWebBrowser control if the resource doesn't exist and it doesn't take a long time to display this default web page. I have performed a test and confirmed this. Hope this is helpful to you. If you have any concerns or need anything else, please don't hesitate to let me know. Sincerely, Linda Liu Microsoft Online Community Support ==================================================== When responding to posts,please "Reply to Group" via your newsreader so that others may learn and benefit from your issue. ==================================================== Hi Dave,
You have mentioned that "Define doc As mshtml.HTMLDocumentClass = browser.Document" will fail to compile with "Type 'mshtml.HTMLDocumentClass' is not defined." The type HTMLDocumentClass is located in Microsoft.mshtml assembly and the namespace is mshtml. To use the type HTMLDocumentClass in your code, you should add a reference to Microsoft.mshtml into your project. Hope this is helpful to you. If you have any other concerns or need anything else, please don't hesitate to let me know. Sincerely, Linda Liu Microsoft Online Community Support ==================================================== When responding to posts,please "Reply to Group" via your newsreader so that others may learn and benefit from your issue. ==================================================== 
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