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First I’d like thank you, Phil, for the time to put out such good details. That's all there is to late binding to a COM object........ Yes No Additional feedback? 1500 characters remaining Submit Skip this Thank you! so that i can access it through Excel VBA Srajan_aga Thanks a ton!!!!!!!!!!! http://optimisersonpc.com/cannot-load/cannot-load-type-library.html

One example is automation of Microsoft Office 2003. STDMETHODIMP CAirlineArrivalPager::AddArrivalDetails( BSTR bstrAirlineName,BSTR bstrArrivalTerminal) { // Notify all subscribers that an Airline has hit the tarmac Fire_OnAirlineArrivedEvent(bstrAirlineName,bstrArrivalTerminal); // Return the status to the caller return S_OK; } ....... In the example case, the type library registration entry has an InprocServer32 class that is used to marshal the interface, and it refers to oleaut32.dll, the OLE Automation Dll. I had to actually use the project output option and set the Register option to vsdrfCOM to get registered properly on another machine to use with VB6. anchor

The AirlineArrivalPager object supports an incoming interface called IAirlineArrivalPager and an outgoing interface called _IAirlineArrivalPagerEvents. Typically, COM components that support event notifications have what is called, an outgoing interface. For those of us who program with COM for a living, and for those of us who live by the 'COM is love' mantra, there is good news. It turns out that this is relatively straightforward using the late binding methods that scripters have been using for years - remember those script-based worms that enumerated your address book and

interface IAirlineInfo : IDispatch { [id(1), helpstring("method GetAirlineTiming")] HRESULT GetAirlineTiming([in] BSTR bstrAirline, [out,retval] BSTR* pBstrDetails); [propget, id(2), helpstring("property LocalTimeAtOrlando")] HRESULT LocalTimeAtOrlando([out, retval] BSTR *pVal); }; ....... To get to the point here, if you leave the assembly version as the default of 1.0.*, then the version will change every time you build, and this will make your Please select another delimiter. 164 Invalid TimeOut Value - An invalid TimeOut value was specified. 165 SessionID Error - A SessionID string cannot be created. 166 Uninitialized Object - An attempt SashaCleerri's Weblog Scattered thoughts and writings Home could not load type ‘projectname.assemblyname.pagename' 22 09 2008 When doing ASP.Net development hosted in SharePoint, I occasionally found the following error when opening certain

If you built your assembly with Visual Studio 2003, the RuntimeVersion in the registration will refer to the 1.1 framework, so you might assume that this is the runtime version that One RCW instance is created for each instance of the COM object. Is it possible to register these components as a part of the deployment. https://bytes.com/topic/asp-net/answers/878447-asp-net-application-state Similar topics Application State usage/tuning and "Object reference not set" erro caching: Session state or Application state...

Not the GAC, and that's why there is a CodeBase entry referring to the assembly's location. Give us your feedback Active Server Pages Events Event ID Description 100 Out of memory - Unable to allocate required memory. 101 Unexpected error - The function returned |. 102 Expecting The other classes are not COMVisible but they are used in the COMVisible Class. It has replaced that with the GetEnumerator() method that returns the IEnumerator interface of the object that handles the actual enumeration.

  1. Delegates allow an event raised by any component to be connected to a handler function or method of any other component as long as the function signatures of the handler function
  2. Updating the Interface When updating a COM interface, the contract on the original interface must remain the same, otherwise you risk shipping a new version of your assembly and immediately breaking
  3. try { object objAirlineLateBound; Type objTypeAirline; // Create an object array containing // the input parameters for the method object[] arrayInputParams= { "Air Scooby IC 5678" }; //Get the type information

Of course, the COM object still needs to implement the ISupportErrorInfo and IErrorInfo interfaces for this error propagation to work, so that the RCW knows that the object provides extended error https://msdn.microsoft.com/en-us/library/7bw0ch66(v=vs.100).aspx Your command line will be something like: 1 Tlbexp This generated type library then needs to be added to your setup project (in the application folder is Type libraries have always been used in COM programming, but the reason type libraries are a bit more prominent in the .NET COM Interop world is because they are less hidden Use relative URLs. 232 Invalid Cookie Specification~METADATA tag contains an invalid cookie specification. 233 Cannot load cookie script source - Cannot load cookie script source file specified in the METADATA tag.

That's all there is to receiving event notifications from COM components. http://optimisersonpc.com/cannot-load/cannot-load-oci-dll-oci-dll.html dispinterface _IAirlineArrivalPagerEvents { properties: methods: [id(1), helpstring("method OnAirlineArrivedEvent")] HRESULT OnAirlineArrivedEvent([in] BSTR bstrAirlineName, [in] BSTR bstrArrivalTerminal); }; .... That was generated by Regasm and imported into the setup project. When I first saw this behavior I thought for a moment that Visual Studio was generating the type library for me automatically, but it wasn't.

However in the .NET world, assemblies contain metadata, and so you use a tool like Regasm.exe or Tlbexp.exe to explicitly generate a type library. If you're familiar with traditional COM registration, all those entries will be new except for the usual InprocServer32 entry that, in this case, points to mscoree.dll. This is what the FinalConstruct attempts to do by adding some ice cream flavors into the vector< _bstr_t > represented by m_coll........ http://optimisersonpc.com/cannot-load/cannot-load-type-global-asax.html Then we wire the delegate to reference the SpeakEnglish and SpeakFrench methods of the HelloWorld object.

HRESULT CIceCreamMenu::FinalConstruct() { // Fill up the menu with some flavors m_coll.push_back(_bstr_t(_T("Chocolate Almond Fudge"))); m_coll.push_back(_bstr_t(_T("Peach Melba"))); m_coll.push_back(_bstr_t(_T("Black Currant"))); m_coll.push_back(_bstr_t(_T("Strawberry"))); m_coll.push_back(_bstr_t(_T("Butterscotch"))); m_coll.push_back(_bstr_t(_T("Mint Chocolate Chip"))); return S_OK; } STDMETHODIMP CIceCreamMenu::AddFlavortoMenu(BSTR bstrNewFlavor) { m_coll.push_back(_bstr_t(bstrNewFlavor)); See ASP.NET Ajax CDN Terms of Use – http://www.asp.net/ajaxlibrary/CDN.ashx. ]]> Through the Interface A blog for developers programming with The out method parameter keyword gets mapped to an [out] directional attribute in IDL.

Everything else I have seen seems to refer to the /codebase switch but, this is being used and still causing an issue.

I did a /verbose regasm, and everything is exported and the assembly is registered. In any event, registering a type library has always been a part of COM registration, so it does no harm to install and register one - that's exactly what Regasm would Access is denied to this object. 179 Application Initialization Error - An error occurred while initializing the Application object. 180 Disallowed object use - An intrinsic object cannot be stored within Take a look at the implementation of the incoming IAirlineArrivalPager interface's AddArrivalDetails method:.......

If you were to build a traditional COM Dll in C++ with the help of (for example) Visual Studio's ATL (Active Template Library) wizards, the type library is automatically generated and If your class is based on a simple collection such as an array, you need to just make an index move back and forth across the array for the MoveNext implementation. asked 6 years ago viewed 1480 times active 5 months ago Upcoming Events 2016 Community Moderator Election ends Nov 22 Get the weekly newsletter! his comment is here And added the following code (from MSDN) in Global.asax: Expand|Select|Wrap|Line Numbers <%@ApplicationCodebehind="Global.asax.cs"Inherits="WebApplication1.Global"Language="C#"%> Just to check, when I run the application I get the following error: Server Error

Linux questions C# questions ASP.NET questions fabric questions SQL questions discussionsforums All Message Boards... Firstly, you need to generate a .NET metadata proxy from the COM object's typelibrary, so that it can be consumed by a .NET application. An interface pointer to this sink object is passed by the client to the component. It creates type library information from the assembly's metadata and registers that type library information.

One caveat here is that you cannot selectively override only specific methods from the COM coclass in your managed code. You need to set the Procedure ID for NewEnum to -4 and also make sure that you turn on the Hide this member attribute check box.Option Explicit Private mIceCreamFlavors As Collection This property usually returns an IUnknown interface pointer to an object that implements the IEnumVariant interface. We'll create an ATL EXE project that hosts an object called AirlineArrivalPager.

Here's the IDL definition for the IAirlineInfo interface:..... The reason I explained to you how delegates work is because it's one of the primary enablers of the .NET event handling model and it's important to understand this to appreciate Using collections allows you to get data on demand. VB will do all the hard work under the covers to hook up the notifications made on the outgoing interface to the appropriate handler function.

These collections can be enumerated just as easily by .NET clients. Learning resources Microsoft Virtual Academy Channel 9 MSDN Magazine Community Forums Blogs Codeplex Support Self support Programs BizSpark (for startups) Microsoft Imagine (for students) United States (English) Newsletter Privacy & cookies The content you requested has been removed. Read more about error handling here.

Can Sombra teleport to her teleporter after respawn? vivekanand.poojari Unable to manually register the tlb file. In this case, the Outlook object model requires us to start with the application object and use it to create a mail item object. The existing production Application references the assembly and runs fine.

Download source code for all examples - 156 KB Download demo - (Built COM Component binaries and .NET Assemblies only) - 320 KB (Disclaimer: The information in this article and source Error Code is : -2147221502.

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