Session - Using 3rd Party COM Dll In ASP
Dec 9, 2010
I have an ASP.NET project using a COM dll. When I load the site, I login without a problem and I can browse the site fine as long as I don't go to a page which uses the COM library. When I go to a page which uses the COM library to get data from a database, the page loads fine. The problem comes when I navigate away form this page. For some reason I am sent back to the login page as if the initial session was dropped. If I take away the component on the page which displays the data which the library retrieves, I can navigate away from the page, so it is definitely the call to the library that kills the session. Does anyone have any idea why this could happen?
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Mar 28, 2011
The Scenario:
I have a situation where I need to pass some session variables to an ASPX page, inside a DNN module. This page is then transferred to Winnovative's PDF publishing component's in the form of a byte array. The component returns a PDF document in the result, furthermore that PDF document is then emailed to the customer.
The Problem:
The session gets expired when the ASPX page is called (hosted as a part of DNN web project on IIS) to pass it to Winnovative. It was noticed that the session expired when ever I request the page (by any means) and a new session on that page is created.
Is there any workaround (without involving a database) that I can access those session variables (it is a dataset) from that particular ASP.NET page?
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Aug 27, 2010
Am looking for a third party tool/provider of session state/caching in an ASP.NET context.
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Mar 17, 2011
I know this may be a simple answer or at least to most people but I'm not getting anywhere when attempting this on my own or through the various resources I have looked up.
Here is my issue:
I am using ASP/VB.NET to build this integration. Visual Studio 2008. I previously had asked a question on API Integration on here and utilized that information to successfully perform the next steps. As this API is written differently I may not be grasping the appropriate functions correctly.
A company has given me several addresses for .ASMX portals. I add these into my service references. I can successfully see objects in my object browser and see all the procedures, etc., but further from here I'm unable to correctly use any objects. I attempted to replicate the integration based on my last API question and advice: Connecting to an API offered by a Company. When I'm attempting to use an object or simply relate a field to something on my script I continually get an error.
For example:
Dim A as New API.AddFunction
A.AccountNo = "123"
When running the page:
Object reference not set to an instance of an object.
Here is only one .ASMX I was given. I cannot release any more, until I receive permission to do so from the provider, I apologize.
[URL]
Anyhow, the root of my question is really how do I correctly interface with this API? What information do responders require so I can clarify this question more?
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Jan 1, 2010
I work with many diverse technologies, and don't possess the time to evaluate every single UI framework, so I'd appreciate hearing other coders' experiences with various frameworks.
The stuff I've worked with so far (and my perceptions):
WinForms: DevExpress (love the looks, hate the API and bloat), Krypton (free!, looks good, but limited), Telerik (don't like the looks)WPF: have only used WPF Themes pack. Asp.Net: Telerik MVC Controls (love it), jQuery UI (looks great)
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May 10, 2010
I have two 3rd party unmanaged c++ dll and one C++ project which uses these dlls. In my asp.net project i added c++ project as reference but in runtime it fails with that error:
Exception from HRESULT: 0x8007007E
Visual studio puts c++ project's dll into /bin folder auto. Even if i put other dlls into bin folder, it fails.
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Feb 8, 2010
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May 23, 2010
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Jan 17, 2011
I am working on an add-on component that needs to play nice with other similar add-ons. There is a 3rd party component that decided to implement the functionality a little differently than the default. What I am trying to do is call an overload of a method that only the 3rd party component has, like this:
Select Case True
Case TypeOf provider Is 3rdParty.Provider
result = DirectCast(provider, 3rdParty.Provider).GetNames(method, True)
Case Else
result = provider.GetNames(method)
End Select
Unfortunately, the DLL that contains 3rdParty.Provider is optional, so this code will give compile errors if it is not present. How can I accomplish the same thing but make it safe to run whether the 3rdParty.Provider.dll is present or not?
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Feb 19, 2011
the situation is quite complex ( and my english very basic) but let's try to explain:
i'm developing a Asp.net web service calling a method from an external dll. This external dll calls some method from other .net dlls. So we have:
Asp.net WS ----> External.dll ----> other.NEt.Dll(---> other .netdll)
You have to know that the external dll uses a path ( given by an initialize method) to resolve its internal reference. In conclusion i have a web application with an added reference to my External.dll and a fully trusted path ( c:EXTERNAL ) full of all the .net dlls needed by external.dll. Looking around i've found this code to add to the application_START:
Dim path As String = String.Concat(System.Environment.GetEnvironmentVariable("PATH"), ";", "c:EXTERNAL)
System.Environment.SetEnvironmentVariable("PATH", path, EnvironmentVariableTarget.Machine)
this add my c:EXTERNAL to global environment PATH. With this configuration running from the Visual Studio development server i get no error and it all works correctly. When i publish the application on my local IIS server it gives various errors: At first the result is something like:
Failure reading <Myobject> control of <(static)> type
Unable to create <myobject> object (<C:(WRONGPATH)
eeded.net.dll> assembly)
To resolve this i've tried to add the needed .net dlls to the /bin of my application in wwwroot but the result is something like:
Failure reading <MyType> control of <Myobject> type
Error returned by .NET Framework:
System.ArgumentException: Un oggetto di tipo 'ComNet.BaseControl.LoginDisplayLayout' non può essere convertito nel tipo 'ComNet.BaseControl.LoginDisplayLayout'.
in System.RuntimeType.CheckValue(Object value, Binder binder, CultureInfo culture, BindingFlags invokeAttr)
in System.Reflection.MethodBase.CheckArguments(Object[] parameters, Binder binder, BindingFlags invokeAttr, CultureInfo culture, Signature sig)
in System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture, Boolean skipVisibilityChecks)
in System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
in System.Reflection.RuntimePropertyInfo.SetValue(Object obj, Object value, BindingFlags invokeAttr, Binder binder, Object[] index, CultureInfo culture)
in System.Reflection.RuntimePropertyInfo.SetValue(Object obj, Object value, Object[] index)
in CDotNetType.bSetProperty(CDotNetType* , Object gcrObj, SByte* pszNom, CSLevel* pclPile, Int32 nDimension, Int32* pnTabDimension, STOperationDotNet* pstOperation)
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Mar 1, 2011
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[Code]....
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<%@ Register Assembly="DevExpress.Web.ASPxGridView.v9.2.Export, Version=9.2.9.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a"
Namespace="DevExpress.Web.ASPxGridView.Export" TagPrefix="dxwgv" %>
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I'm working on a project for a client in which the client owns the source code that I develop. I plan on purchasing and using a 3rd party .NET library in this project. When I purchase the library, I have the right to use it royalty free on as many sites as I like. However, the library uses a license key that must be set in a property before using the library.
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