Is there anyway to do the following? Type myType = typeof(User); Collection<myType> list = new Collection<myType>(); I know I could just use User instead of myType but have a function that takes a type and populates a collection then calls SetValue using reflection. How would I create th...more >>

// What I want to do Use enumerated types with the Interlocked.Exchange methods Suggestions please // My estimation of problem Seems like Interlocked.Exchange only works with ints, referencable objects, and floats // Background I have a class that wraps up a worker thread to handle...more >>

I wrote a simple Web Service. It Consumes a single String, writes it to a text file on the hard drive, and returns a success. Now I need a trigger that will start the program that processes the file. I could make a routine that checks for new files every so many seconds, but that uses to...more >>

Hi, I am sending windoew message from a c# application to c++(unmanage) application using this code System.UInt32 rm= RegisterWindowMessage("12345"); System.IntPtr ptr=(IntPtr)HWND_BROADCAST; PostMessage(ptr,(int)rm,5,5); PostMessage(ptr,WM_AAA,5,5); but the c++(vc-6 mfc) dont catch t...more >>

Hi, I'm designing an server application. Eventhough, in the first release, a few hundred clients will be connecting to this server, later on few thousands of clients will connect. Currently, I'm thinking to use a Hashtable to store various clents and their Information. Howeve...more >>

Hello Experts! I am attempting to use the OleDbCommand.ExecuteScaler() function within my ASP.NET C# web page to perform a simple validation, but receive the following error: "Incorrect syntax near the keyword 'DEFAULT'" The form has 2 fields on it, called tb_username and tb_password. (...more >>

Although I mostly use the Visual Studio IDE, and recommend it, from time to time I prefer to knock out a small app with just the command line, and a text editor. Until recently I've used VIM in a unix terminal, for c++, but that is no longer available to me, and, AFIK, doesn't support c#. ...more >>

I have one tab control with 5 tab pages. I want to color each tab page a different color. Does anyone know how to color the entire tab page a unique color? (that includes the tab part of the tab page) In other words, just like different paper folders come in different colors, how do you prog...more >>

Definitely a newcomer to C# (in fact to any programming after some years away) and I'm finding lots of examples but they are sometimes confusing. My concept of (say) QuickBasic was that you write a main program that calls subroutines, thus breaking the thing up into manageable parts. I sta...more >>

Hi there, I have a function which converts a calculation into double dr[i] = Convert.ToDouble (tbl.Rows[0][i], provider) / campCustomers * 100; The returned value looks like this: 0.0132622796653082877191290300 I would like that this value is format to show only the last two decimals ...more >>

I have a Control derived class. When the parent of the control changes the control's Location property, the stack overflows. I have not found a way to find out what was on the stack when it does overflow. All I know is that the program is either stopped due to an exception at the end of Mai...more >>

I am beginner in using C#, actually I am trying to move from VB6 to C# I need very small maybe you will laugh when you get it that simply I have 2 forms let’s say Form1 (main form) and Form2 and there is parameter in form2 I have to call from form1. So please would you tell me how? What...more >>

I am beginner in using C#, actually I am trying to move from VB6 to C# I need very small help in programming problem my be you will laugh when you get it That simply I have to form let’s say Form1 (main form) and Form2, there is parameter in form2 I have to called from form1. So please woul...more >>

Hey, Does anyone have any sample code where I can transfer list items between two list boxes. C# and WinForms. Thanks ...more >>

Hi, I have several tables on SQL Server. Is possible that instead of manually creating all these classes (where each table is represented by a class and each field on the table is represented by a property in the class), I can run some wizard which create all these classes/properties? Any f...more >>

Hi, 1. i can't use .net remoting because the new .net ported app have to communicate with the java app. (so i have to use sockets and TCPListener ? ) 2. does the JLCA (java to c# convertor) does all the work for me ? Thanks. ...more >>

Hello, 1) I have an .html page that hosts 2 frames, each of which hosts a different .aspx page with C#. What I would like to do is place a RadioButtonList control with two options on the first frame . Based on the option that the users chooses , I want to activate different functional...more >>

Hi, I am hoping I can get some help with a small problem I have run into using C#. U have an XML file that I load into a Dataset and then display this in a Datagrid. No problems doing this at all. I then use a Dataview to filter this view using a keyword and I have no problems with this either. ...more >>

Give an example:When user pressed "B" or "b",HOOK get that message and let TextBox1.text display "a". The executing founction is as following: **************************************** IntPtr MyHookProc(int code, IntPtr wparam, IntPtr lparam) { if( code < 0 ) return CallNextHookEx(_nex...more >>

I have a simple windows app. It consists of 2 forms. The first is used to view the contents of a dataset, the second is used to update the dataset and add/remove items from it. The problem is, when i add or remove items from the dataset, it doesn't update the dataset until i restart the app...more >>

Hi There I have spent alot of time trying to get a masked text box to validate e-mails, but with no success. Mainly because I can't figure out how to account for the wide variety of different e-mail addresses, for example: billwallis@hta.com bill.wallis@hta.com billwallis@hta.com.au bi...more >>

Hello, Is it possible to generate a CHM file dynamically, from an html file or a word document, through code. I searched on the net, but could not find any answers. I would like to generate a help file, for a particluar form/page on the fly. Any help is greatly appreciated. Thanking you ...more >>

Hi, I developed a filewatcher service to monitor file creation on a network drive - 90% time it works fine and from time to time I found out that the newly created file on that network drive does not trigger the event - all I have to do is to restart the service. I kind of suspect the re...more >>

Hi. I'm trying to load an image and copy it to an array of bytes. The image is a png 32bit format. The code I have is: ------------------------------------------------------------- public void LoadImage(path) { Bitmap image = new Bitmap(path); byte[] pixels = new byte[image.Width*image.Hei...more >>

Hi, When calculating a remainder, R, as a result of X / Y, you wouldn't expect R to be greater than Y, right? Wrong! Math.IEEERemainder( double.MaxValue, 1000.0 ) returns 1.99584030953472E+292. I understand why and how this happens, but the point is that returning a value that is...more >>

Hi, I'm programming on Visual C# Express Beta 2 and I have the following code: class MyClass { int[] a = new int[30] int [,] b = new int[10,20] public int SomeMethod() } class OtherClass { MyClass[] cls = null; public void DoSomething() { int a =...more >>

I have a byte array with binary data and I want to get its contants into a string. tagContent = System.Text.Encoding.ASCII.GetString(str); screws binary data. foreach (byte b in str) { tagContent += (char)b; } is damn slow. What's the correct way to do this? ...more >>

is there any dot net frame work for linux ?? or a developement platform for .net under linux ??...more >>

how can I run an application without a graphic interface , I mean an application that works in the background licke the msn messenger , I know that I can hide the window form , but that makes the program very slow !!...more >>

I have a string... abcdefghijklmnop I know the 'abcdefg' and i know the 'jklmnop', but I dont know the >hi<. How do I assign this >hi< to a string so that I can play with it later? ...more >>

Hi groups, Can anyone give me the equivalent C# sharp code for this VB.ET code, :: VB.NET :: Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) _ Handles MyBase.Load 'This event routine in the loginCheck user control fires when...more >>

Hello, I am developing an application whose main goal is to read from a dynamic ..asp Internet URL. This URL automatically produces an RSS file, which I further want to load into my application so as to manilupate the source and render the results into an HTML page using ASP.NET and C#. My pr...more >>

given namespace WindowsService1 { public class Service1 : System.ServiceProcess.ServiceBase......... private void timer1_Elapsed(object sender, System.Timers.ElapsedEventArgs e) { ArrayList myAL = new ArrayList(); CustomClass objCont = new ControllerClass; CustomClass objInfo ...more >>

I am trying to send a 6 byte char array from the serial port in new C# 2005 Express: com.Write(new string(new char[] { (char)34, (char)14, (char)192, (char)51, (char)0, (char)0 }, 0, 6)); I am receiving 34,14,63,51,0,0 from the port as I connected Tx and Rx pins to each other by using the ...more >>

Hi There What convention do you use when naming an enumeration and variables that use the enumeration? I like plural/singular, for example: public class Example { public enum VehicleTypes { Car, Truck, Motorbike }; static VehicleTypes VehicleType = VehicleTypes.C...more >>

Hi There Is there any easy way to use the System.Compression tools in .NET 2.0 to compress an entire directory ? All my source code is kept in a single directory so I have written a utility that recursively backs up the directory and compresses each file as it goes. The utility has no GUI...more >>

Why is it that I get these errors on this function 1.) The out parameter 'Avalues' must be assigned to before control leaves the current method 2.) Use of unassigned local variable 'Avalues' public bool getStringFieldAsArrayList( out ArrayList Avalues) { bool retVal=false ; Avalues.Add...more >>

How do I find out what control a DragDrop event comes from? I initially presumed that it was the "sender" parameter. But this always seems to be the destination. Ie ... private void listviewMonday_DragDrop (object sender, System.Windows.Forms.DragEventArgs e) { // "sender" always se...more >>

Hello, Im in need of a BASIC interpreter source code in C#. If anyone can point me to something like this, it would be appreciated. ...more >>

Is it possible to display something in a combobox and store something else? For example, can I display "Query for active employees" and save the actual query in the same combobox item? That way I can automatically retrieve the specific query for the option the user chose. Is this possible...more >>

I have a little problem with a webservice. I reproduced the problem in the following simplified example. I just create a new C# ASP.NET webservice and a c# console application. I added a new class test to the namespace of the webservice which I try to access from the console application. ...more >>

I have been looking all over the internet on how to learn C# .net. I have read a couple of books, lots of forums, and tutorials, but i am still at a very big loss as far as trying to write my own GUI Windows application. I was just wondering how everyone one learns C# so well that they progr...more >>

I am currently designing a ASP.NET form for contacts which displays a picture depending on which contact is being viewed. This code works perfectly thus far, but I want to add an if-case for when the picture does not exist. In english it would be something like this: If file exists (".....more >>

I am running an application called AcroComm.exe to poll time clocks here at our company. I have written a small C# app that will poll the clocks based on information found in a DB. My problem is that AcroComm will sometimes stop polling in the middle of the process and terminate. The programing ...more >>

Hi All, This is a very simple question. I have a proxy class (for web service) and couple of other classes that are common for 3 of my projects. As a developer, I would like to keep these common classes seperatly and use them in three different projects. How can I do that? Thanks. ...more >>

I have a configuration class which a handful of enum's that I want to access from another assembly/project. Is this possible? ...more >>

Hi, I am contemplating the purchase of Microsoft Visual Studio .NET, and I've noticed that the prices range anywhere from $200 to $600 USD: <+>-<+>-<+>-<+>-<+>-<+>-<+>-<+>-<+>-<+>-<+>-<+>-<+>-<+>-<+>-<+>-<+>-<+> http://www.calibex.com/Microsoft-Visual-Studio-NET--zz57175175z0znz1zvisual _st...more >>

I have athe following code, but nothing happens when I minimize or maximze the form using "top right corner minimze/maximize buttons". What am I missing!!!!! Help please!!!!!!!!!! Thanks JJ private void Form1_SizeChanged(object sender, System.EventArgs e) { if(this.WindowState == ...more >>

A really simple question. I have an interactive application that works using a microphone and speakers plugged into the sound card. I'd like this app to work over a telephone now. VOIP or a real telephone line - both are workable options. I am clueless how to proceed further, this was d...more >>

I have athe following code, but nothing happens when I minimize or maximze the form using "top right corner minimze/maximize icons". What am I missing!!!!! Help please!!!!!!!!!! Thanks JJ private void Form1_SizeChanged(object sender, System.EventArgs e) { if(this.WindowState == Fo...more >>