In the Java and J2EE world there are quite a few application servers like WebShpere, WebLogic or JBoss if you want to develop large-scale applications. How many pure .NET application server exist which are not based on old COM or COM+ technology ? Would it make sense to develop a new one, with s...more >>

Hi all, here is my situation. When I developed my .NET 1.x application (required to be database indipendent and n-tier) I created a structure like this: - Presentation - BusinessLayer - DataModel (referenced in BusinessLayer and DataLayer to communicate entities) - DataLayer Dat...more >>

In VB.NET, I utilized the setup wizard to create the setup project for my VB.net project. When I tried to build the setup project, I got the error message "Keycode is non-nullable". I could not find keycode in the Setup project properties or anywhere in the VB project I created. What am I ...more >>

Hi, I'm trying to run multiple unit tests where each test ends up registering and unregistering an IPC remoting channel. Individually they pass, but as a group all but the first fail - I get a "Failed to create IPC Port: Access is denied" error. What do I need to do? I've tried multiple per...more >>

I have run into a problem I have had no luck hunting down. Here is the scenario... I have a web service application that works fine, it brings back customer information. I have a native .NET application that calls the Web Service and runs in the System tray. That application works fine. ...more >>

Hi, I have several questions about Queued Components in .Net. 1. What are the differences between the checkbox "Queued" and the checkbox "Listen"? They appear Queue Tab in component properties. 2. When should i use message queued? I mean, pls give me somesome useful scenarios 3. Why do...more >>

Hi, This may not be the correct group, but I make it a try. When my application is using a library from a different project I add the different project as a library under the References map. So far so good, but I want to refer to a debug version when I make my debug project, and the non d...more >>

Hello. I've wrote some simple tests to test performance. In the client and server configuration files binary forrmaters were set up. For 10000 objects datasets passed by values are 8 or sometimes even 10 times faseter then reading marshalled by reference objects properties. Why? How marshal...more >>

I downloaded the Debugging ToolSet and debuggingwalkthroughs.msi, run it and opened the VS.Net project. The project has a reference to DebuggingCOMLib which is not shipped with. Where can I find this object. Thanks in advance...more >>

I have been using ClickOnce since the day I downloaded CSharp Express, with great success. I have 10 client machines that run my app. Today I published a new version to the server using Visual Studio 2005 Standard (just purchased) and 7 of the 10 client machines do not see a change in the ...more >>

Hi all, I have a system whereby I need to throw custom exception classes across application domains from remoted APIs. I believe I saw somewhere that there was a bit of a trick to this, but I can't find the article now. I am certain that I saw somewhere that simply declaring the exception c...more >>

Does anyone have a pattern reference that would allow me to dynamically switch between instantiating local objects v. remote objects? I'm particularly interested in anything that uses WCF to manage the remoting options. Thanks....more >>

Hi , i have a windows2003 domain with some server as web , build application server with visual studio installed , a COM+ application server and other. This server and domain is used from developer through remote desktop for create and test a web application that use a aspx and com+ pack...more >>

Dear all I am studying an application architecture based on an n.Tiers architecture. I have it defined as: Presenation tiers Buisness logic DataLayer Actually as far as I have understand benefits of 3 or N-tiers architecture, excpet all adavntage of code maintenance and scalability...more >>

Dear all, I am trying to catch the real used of a serviced componenent I get an example where a libarary named Account has been defined as a serviced component by inheriting from System.ServiceComponent class This library is performing some action on an SQL dtabase tables Then I have a cli...more >>

In .NET 2.0 the RemotingConfiguration.Configure method has a new overload that you are advised to use with the ensureSecurity boolean parameter, but I can find nowhere that explains the effect of passing true as opposed to false. Does this automatically cause all communications over the channe...more >>

Hi, I try to use ClickOnce to deploy a test app thru my web site. During the "Publish Now" process, I have an error "Cannot create _vti_cnf" (Note that the main application folder has been created ok, which means, I believe, that the user rights are correct) So I created the subfolder ma...more >>

In a 3-Tier application, once upon a while comes the need for binding objects or usercontrols from other objects, example binding a usercontrol in the Presentation layer from a Business Layer Object, My problem: I have a Dynamically Rendered WebUserControl that it needs some properties that...more >>

Hi, I used TransactionScope Object in .NET 2.0 on WIN XP SP2. My web site is hosted on WIN XP SP2 and SQL 2000 SP4 DATABASE on WIN 2003 Server SP1. The TransactionScope object fails, when i run the code. I siwtched off the FIREWALL. Changed the RPC and MSDTC Registry Key settings as su...more >>

My application uses the no-touch deployment model. In .NET 1.1, this works great. After I installed .NET 2.0 (and subsequently uninstalled it), the application can no longer read the app.config file. Example: ConfigurationSettings.AppSettings.Get(...) always returns Nothing. Again, this work...more >>

I have a distributed application with a windows client and webservices. I make use of C#, VS2005 and SQL Server 2000. The client user can add records to the datasets locally. With many users performng concurrent inserts into a centralized table on the SQL Server the primary key values gener...more >>

I'm working with a guy who has posted quite a few questions but still hasn't gotten an answer. Here's the situation: We have a windows service and a windows app. The windows service calculates some statistics and when it's done we want the windows app to display them. But we need it to h...more >>

I have a transactional class that derives from EnterpriseServices. On the catch block we log to the database through a utility class that is NOT deriving from EnterpriseServices. For some reason the error also rolls back, when we actually don't want it to. Any ideas? ...more >>

Hi, We're using the UIP in a Web solution and keep getting the following intermittent error message: [NullReferenceException: Object reference not set to an instance of an object.] Microsoft.ApplicationBlocks.UIProcess.UIPConfigSettings.GetPersistenceProviderSettings(String navigat...more >>

Dear all, I do not know if it is the proper place to post this but lets see. I am preparing my MCAD and start to go through the exam based on remoting part. In the MS press book it is mention a subject for COM+ and Component services. I really do not catch wht is all about. Was it for back...more >>

Hi Folks, I got a Smart Client Application that downloads it´s actual assemblies from a Deployment Server. This works fine for all managed assemblies. Does anybody happen to know, how to deploy/auto-update unmanaged dependencies like FFTW3 or BLAS which I use via interop from my managed ...more >>

We are having a problem where one developer machiene gets this error:An error occurred while enlisting in a distributed transaction. we have done other things to fix this on a different developer machine, and both have the same settings: Turn off Windows Firewall (or open port 135) also und...more >>

here's the problem we have a .net app that has a RichTextBox on it - and we need to enter a bunch of text - hit Enter - and have a new line - Note "control Enter" does this - but we want the ENTER key to do it instead - how do we tell the RichText box to accept this? thanks S...more >>

Hi, I could send messages from my development machine to message queue in the same machine. But, I'm failing while sending the same messaged to my win2k server which is also has message queue running. Below is the Code that I tried from my developement machine. (which is working fine). How ...more >>