What happens if I write a .net program using the framework 3.5 and I use a 2.0 dll? Are both frameworks (3.5 and 2.0) loaded at the same time "eating" more memory, or does the 2.0 dll uses the 3.5 framework? --- thanks ...more >>

I'm trying to understand how to speed up the ui. I have been experimenting with background processing, but am not getting results that I think I should. To experiment, I've created a window that contains a bunch of randomly sized and placed circles. My goal is to be able to resize the windo...more >>

Can someone compare in detail? I feel WebService is part of WCFservice now. Thanks, soworl...more >>

Hi, I have a question related to lambda expresions and how to prevent exceptions in a FindAll(). The following code create a list of objects and search for an item the "old" way and the "new" way: Create the list. List<object> list2 = new List<object>() { 1, 2, null, 6 }; Sea...more >>

I can't install .Net Framework (either 1.1, 2.0 or 3.0) After a new installation of Windows XP Pro on an HP Workstation xw4200 machine it keeps giving me errors and can not get it to install. I have tried a few things already that were on the MS KB site but nothing worked so far. Also deleted ...more >>

I invoked ildasm, couldn't figure out what it was doing, and invoked it again. Here's a screenshot of the twins: http://www.geocities.jp/hitotsubishi/ildasm.png What is the one on the left doing? ...more >>

Hi, I am experiencing problems with the SHA256Managed class when multiple threads are simultaneously using it. I have reduced the problem to a small piece of code (see below). This creates two threads, each of which repeatedly attempts to hash a string and compare the result to a previous a...more >>

Hi, I have to check if a url like http://my_server/abc.aspx?id=123 sends a valid file. The server always returns OK as status code, but sends emtpy files, if the id is not correct. It's not possible for me to change the server side. Content-Lenght is always zero, because files are in a stream...more >>

Hi, I know it's possible to call a Framework 3.5 compile dll in a with a Framework 2.0 compile executalbe for exemple. Is it supported and recommended ??? And what about with a 1.1 Framework execuable?? Thank for your help. -- Nico...more >>

I have a crystal report that i added datasources to that are classes made from linq-to-sql designer. This report errors trying to find logon info when i tell it export data or use it in a viewer. There is no logon info so whats up? I am settings the SetDataSource method with the object returne...more >>

According to this article, if using VB FileSystem I/O isn't supported. http://msdn2.microsoft.com/en-us/library/t340010s.aspx Does this mean that if using C# it is supported? Or does it only mention VB but it applies to all languages? Also, all the links on this page only refers to VB, not C...more >>

I have a desktop aplication which use an embeded database engine (embeded in the application that is) to store its data. And I used LINQ 2 SQL as an ORMapper to synchronize the database with my object representation in memory. What I want to do is load most object at the start, do in memory wo...more >>

Hi, I am using Visual Studio 2005 to debug a program. It is like obfuscated code, so I wonder if given a starting bracket, VS can tell me where the closing bracket is. By the way, I also wonder if this is the right group to ask these questions. Otherwise suggestions are welcome ! Thanks ...more >>

Ho finito di sviluppare un'applicazione Windows (C# 2005), composta di un ..exe di avvio e vari .dll, e la devo distribuire. Domanda: come faccio a impedire che le dll che distribuisco insieme all’applicazione siano open source, cioè utilizzabili per un altro progetto (non mio) semplicement...more >>

I posted this to the interop group. I'm reposting to troll for a few more ideas. In my managed C# app we capture trace statements and direct them to a log file using trace listeners. Part of the app uses unmanaged C++ dlls, and unfortunately, the C++ printfs don't get picked up and are simply...more >>

Hi there I am looking to buy MO 2007 Home and Student version. I have both a PC and a Mac and would like to install a suite on both. Is this possible or will I have to buy seperate packages? Best wishes, Pam...more >>

I have seen attributes, specifically Serializable declared in 2 ways and was wondering if anyone had any insight on the differance if there is any. These 2 ways are [Serializable] and [Serializable()]. Does the addition of the parenthesis do anything? Is this calling a constructor? Both seem t...more >>

The short form of this post is as follows. For an instance of System.Timers.Timer, after setting Enabled to False, is there a foolproof way to tell if an Elapsed event will or will not fire? The long form follows. I have a class, MyClass, that declares Private WithEvents MyTimer As Sys...more >>

Hi... I was just wondering what recommendations people had for C# code profilers? I'm trying to figure out where a lot of our app's time is going. I downloaded and am trying ProfileSharp Enterprise Edition, but I'm finding the interface awkward and the results suspect (profiling for cpu c...more >>

Hi all, I have installed EnterpriseLibrary v3.1 (latest version) on my pc. When I create the app.config file using the "EnterpriseLibrary Configuration" utility, I get an error saying it can't detect the EL.Logging.dll file. I fixed the problem by setting the PublicKeyToken= "null" instead ...more >>

Hi, I want to use GDI to rotate some text at an angle and output the resultant image to the asp.net response stream. I can do that all fine, however what I'm struggling with is trimming the whitespace from the resultant image. What im doing is creating a blank canvas image (of arbitrarily...more >>

I'd like to distribute the .NET framework with my application. I'm wondering about the license. My application is being created with Borland Delphi 8 (with .NET) - I've the license for that product. So the question is: may I distribute the .NET framework with my app? I was trying to find this in...more >>

Hi all, My question consists of 2 parts: 1) I have installed my windows service [by right-click on Setup.exe in SolutionExplorer, then Install ... ] onto a folder on my desktop. When I click on the MyNewService.exe file, I got the following error message: " Cannot start service from th...more >>

Hi... We have some elapsed time stopwatches using the QueryPerformanceCounter() win32 api, but since I was getting tired of doing the arithmatic all the time I added some DateTime.Now.ToString("HH:mm:ss.fff")'s to the log and I noticed an interesting quirk. There's often about a 5ms diff...more >>

Hi. I've downloaded & installed the Visual Studo Tools for Microsoft Office. I have both Visual Studio 2005 Pro & Microsoft Office 2007 Pro installed. I'm trying to create my first Office project, but I don't see 'Office' as an available Project Type. I'm following the directions shown he...more >>

I have a Metafile and a Graphics attached to it and I do several drawings on the Metafile through the Graphics. After the drawings I need to print the metafile. If I try to print the Metafile right away, nothing shows on the page, now, If I do a Graphics.Dispose() and then print the Metafile,...more >>

Hello, I have a service application that uses Windows Workflow Foundation as part of its processes. One of the class libraries in this application is a collection of custom WF activities that I have written to represent the bits of business process. The solution compiles fine when compil...more >>

I have created a simple Web Application that just contains default.aspx and a web.config. I have added a Web Setup project to this solution, it Built Fine in VS2008. The installer works fine on windows Vista x64, but fails on the Virtual Machines of XP and 2003 R2. The installer reads "The ...more >>

Hello, I have a Windows Service-hosted WCF service that occasionally throws an timeout exception, or something that looks like one. The call chain looks like this: Client->WCF Service->COM Server->COM App The exception seems to appear as the call to the service is completing. Interes...more >>

How do I control the xsd.exe so that it will generate C# class files with one class per file?...more >>

So, I have a new thread creating something like: dim myThread as new System.Threading.Thread(AddressOf myProcedure) but, could I send an any kind of parameter instead of call to myProcedure??? I don't know did I made myself clear, but I would like to have something like: public sub St...more >>

Any help with - '=========== THIS PART IS NOT WORKING ======== section in the code. I'm not able to send using emails using "C:\temp\" folder! Any idea! Thanks ------------------------------------------------------------------------- Sub SendAsync() Try Dim strmsgBody As...more >>

Hello, I program a user control which display a RichTextBox and a format ToolStrip. I want to process some shortcut keys. The RichTextBox accepts tab. Ctrl + I is supposed to format the selection in italic. But Ctrl+I is also de code for Tab. So when I press Ctrl+I, a tab is inserted (rep...more >>