I have written a server in C# using the .net 2.0 socket class. The server will run fine accepting incoming connections and handling connected sockets (up to 10 at a time) just fine. It may run for 2 weeks without a hitch, then all of the sudden, without any notification, the server will just d...more >>

Hi, I have an unmanged interface which i have exposed through COM to C#. I have been able to implement the interface in one of the C# classes (say Class1) as well. But now what i want to do is that i need to pass the reference of the object of Class1 to this COM wrapper...and then from insi...more >>

Can anyone tell me how can i write on a custom control area using keyboard. i.e i want that custom control to work like textbox, but i m not using (inheriting) textbox instead i m creating my control using UserControl thanks in advance....more >>

Hi Experts: In my C# program I need to use a Win32 DLL which leads to a question: how to define Win32/C++ struct with array in C#. For example, I have a C++ struct: struct MY_STRUCT { int nCities[128]; }; How to define it in C#? Thanks in advance! Polaris ...more >>

I need to associate text used in messages with every DLinq entity type. I need to retrive this text from entity name. I tried to solve this by creating public static readonly property Text in every entity and use EntityManager.GetText() method. Is this best way or is there any better idea...more >>

Is it perfectly acceptable, from a "conventions" or "best practices" point of view to have a class in one namespace extend a class in another namespace? I just came across this state of affairs in the .NET Framework itself and, at first, it seemed somehow like a "bad thing" (in part because...more >>

I'm trying to learn threads so I created a simple dialog based MFC app with an edit box, a Run button and an Exit button. Run starts a loop that continually updates the edit control. How do I modify the code so that the dialog responds to events? That is, so the Exit button will work. Do...more >>

I have some code that looks like this: int[] customerIds = { 1, 2, 3, 4, 5, 6, 7, 8 }; List<Thread> threads = new List<Threads>(); foreach (int customerId in customerIds) { Thread thread = new Thread(delegate() { // do calculation with customerId }); threads.Add(th...more >>

hey all, i have a test network that's exactly like my prod network (except for the FQDN) and all i have to do is move my network cable from one network to the other. sometimes i forget which network i'm on while working on an application. do you know of some different ways in csharp i can...more >>

I have an application I want to automate. I don't believe it has COM automation (how do I tell?) Is there a .NET counterpart to COM automation? If so, how would I determine if this application supports it? The only way I can think to automate it is to enumerate all the windows on the sys...more >>

This is probably a stupid question, but I've never used the ASP.NET GridView control before, so I hope you'll bear with me and give me a clue. I've got a Gridview on my webform to show the contents of a database table. It's configured to show both "edit" "delete" and "insert" options in the co...more >>

Hi, I have one application that is a CMS that uses .NET membership. Now on the same domain, I have to setup a ecommerce store. I want the URLS to look like: www.example.com <-- ecommerce application www.example.com/articles/ <-- CMS Installed there The CMS has the login page als...more >>

I'm needing a little bit of clarity on using the factory design method. Lets say I have two concrete classes that implement an interface. Then I have two factories that instantiate objects of that type. I would like to have the two factories adhere to a common interface for creating the objec...more >>

I have a C# application that uses Windows Media Encoder 9 to stream multiple programs. For each new program, I create a new instance of WMEncoder. After successfully stopping the Encoder, what is the proper way to remove it for Garbage Collection? Currently I set Encoder = null and Garbage ...more >>

Hi, hopefully Ill explain my question ok. Im using an arraylist to get an an array of values from an application, which allows me to use a com interface to interact with its functions. I have no access to the code. I use prices.Add(ba.getPrices());, prices bieng my arraylist. It returns 1 elemen...more >>

I am trying to implement a singleton pattern in my application. I need to make sure that this class is both thread safe and ensure that only 1 instance can created at any given time. As you can see below I create a two instances of the singleton class, s1 and s2. Both s1 and s2 are indeed...more >>

The following code is placed a new Windows Forms App and a DataGridView and BindingSource are dragged onto the form: using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Win...more >>

hello, i'm not sure if this is possible. i have a small VS 2005 C# windows application. it has a textbox and a button. once the user presses the button it fires off many tasks. i want to use the "textbox" to give realtime update, a status window. it seems that in some part of the program t...more >>

I am trying to take over the painting of a windows form but I can't seems to override the OnPaint method... or the OnPaintBackground method... or even the OnNotifyMessage method if there is a control covering the client area. None of these are getting called in any way. I've tried using SetStyle...more >>

System.Threading.ThreadStateException: ActiveX control '8856f961-340a-11d0-a96b-00c04fd705a2' cannot be instantiated because the current thread is not in a single-threaded apartment. at System.Windows.Forms.WebBrowserBase..ctor(String clsidString) at System.Windows.Forms.WebBrowser..ctor...more >>

Hi there, I have some code thatr does the following: Managers.AppUrl = String.Format("http://{0}:{1}{2}",Request.Url.Host, Request.Url.Port, Request.ApplicationPath); To assign the URL of an ASP.NET site to a property - this is called from the startup code of the default page. This wo...more >>

Hi, I was debating if I should be posting this in the drawing newsgroup but finally decided that it wasn't drawing related (even if that's what I'm ultimatly doing) but instead optimization / math. In a sense it's not c-sharp specific either but I hope someone can share some suggestions. So...more >>

Hi All, How would I convert the SQL IN statement to LinQ Select * from TableName where FieldName in (Value1, Value2) or Select * from Table1 where Field1 in (Select Field1 from Table2) Thanks...more >>

In the operation,it is neccessary to create a new table by smo and then insert some data into the new table by DataContext.Executecommand(). Is it possible to implement in a transaction? If no,any adivise? Thanks. ...more >>

This is driving me batty. Why is this piece of code repeatedly throwing an "access to registry key is denied exception"? This is a small console application that is being run on Vista. I fire up a command prompt (which is NOT running as an administrator) and when I launch this app the abov...more >>

Hi, I have to homologate my binaries so I need them to be byte-per-byte identical after each compilation (if the source code is the same, logically). Does anybody know how to achieve that with either compiler options or modifying some parts of the binaries? After some research I've succesfully ...more >>

Hi all, I have to write an editor for Visual Studio. It's one editor for different kind of Arrays: Button[], TextBox[] and so on. The intern array is Control[], so I can use it for all of the inherited controls. But now I don't know how to convert a Control[] back to the given type. Ple...more >>

Hi !! i want to compare two strings and return the difference For example, i have two strings, string str1="then"; string str2="than"; it compared the two strings and returns 1, as only one character is different (a and e). Is there a function in c# that can do this??...more >>

Dear Experts, I have an application that has several graphical components on it. The state of these components is decided by some data which is available in some data store. The graphical components periodically go to the data base to see if the data has changed and accordingly change their...more >>

Hello I need to deploy an application.The application has to connect to a database that is already attached to the DB on the machine.How can i check what DB's are on the machine select the one i want to connect to....more >>

hello everyone. i made a singleton com with sink. then i use the com in C# with sink. -- win32dll -> atl com -> event of atl(if i don't use this code, it's ok) -> C# so i wrote my sample code below. 1.the client call the function of com in thread. 2.the function in COM will fire to C#...more >>

Hello, I got the following question , part of my future application I will run number of threads according to number of enteries in input xml file. How can I dynamically build handlers which will wait for those threads if I don't know before the runtime how many threads will be? Thank u! ...more >>

Download the latest release of SQL Server 2008 Community Technology Preview (CTP) and discover new capabilities to help support your mission-critical ... http://downloadcorner.googlepages.com...more >>

Hello everyone, I'm writing a Windows Forms application (i.e. desktop) which I wish to eventually distribute to a reasonably wide customer base (not necessarily as wide as possible, but as wide as it makes sense for me to do given my limited resources). I am currently developing using VS 20...more >>

Hello, I build a console application which will run few actions in parallel. I wanted to know what is the best way to implement it : by regular threads,some thread interfaces or background workers? And where can I find good example for that? Thank you! *** Sent via Developersdex http:/...more >>

Hello, What is the best way to compare strings is it str1==str2 or String.Compare(str1,str2)? Thank you! *** Sent via Developersdex http://www.developersdex.com ***...more >>

is there any way to change format of any kind of file to little endian or big endian in c#...more >>