The code below was taken from an MSDN example. The example contains explantory lines. Nevertheless I do not understand the use of the while loop. Because of the Pulse within the loop, I would expect the loop to end after the dequeue. If that is correct this would be one off situation, I therefo...more >>

When I select 'Generate Dataset' on the oleDbDataAdapter I get the message: 'Visual Studio could not create an instance of xxx.DataSet1. Confirm the class name is a valid DataSet class.' I haven't been able to find an answer to this exact problem in any discussion groups, but I read somewh...more >>

I have written one Widows Service in ATL, having a ATL component running. Now it is very easy to create the VC client by calling CoCreateINstanceEx to create the component running in the service and giving the appropriate machine where the service runs.. How shud I got about doing the same thi...more >>

I have a windows service written using ATL having a component inside it.Now if I want to write a C# client for that ..I wanna know whether it is possible using Remoting or Service controller class etc. IF I write a COM based application for client I can use CoCreateInstanceEx and instantiate ...more >>

Hello Newsgroupies, I want to develop an item similar to a custom/user control but which is purely graphics. For example; I wish to just draw a simple graph on it based on two or three parameters passed to it via 'session state'. All solutions, suggestions or even code samples gratefull...more >>

Hello All: I have some old ASP Code where it use the WeekdayName Function How Can I get the following values in C# wday = 1; => Sunday wday = 4; => Wednesday I see VB.NET has the Microsoft.VisualBasic.DateAndTime.WeekdayName, but not in C# Thanks Stuart ...more >>

Hi, m a newbie to C# programming, please tell me coding convention or notation followed professionally by the programmers. If possible send me some web page link elaborating the idea. -- Ejaz ul Haq...more >>

What is the way to send/read bits to the printer port at the hex 3F8-3FF or any other legacy io space?? Does C# include the methods to drive the printer or other ports? tia ...more >>

How do I tell if my phone is "smart enough" to run C# apps?...more >>

Hi, How do i pass an ArrayList from C# to C? I am accessing a fn in C# which takes an ref ArrayList as a parameter, how do i pass this datastruct from C? Thanks! (i know i will post in the interop also.. just looking for various psble solutions)...more >>

hi all, I am calling some command from cmd.exe and doing it in server side, while it is executing, i only see the white page and it''s loading now, can I have something on the page like: loading.... and then once it finish, change to : "finished"??? is it possible?? My code example: p.Standa...more >>

I was wondering if anybody has the implementation of CWnd::RunModalLoop/ CWnd::EndModalLoop in C# Mine is a single threaded application... what I want is, the application to wait at one point (and continue processing the messages) until some event sets a flag, which will let the waiting code t...more >>

Hello all, how can I stop the current process when I am write a console application?? Also, can i run command prompt command in the console application?? the programme I am writing is to get data from data base and then generate some txt file, I wanna stop it when it reaches some error/special...more >>

Hi, I am very new to this, but is there anyway I can play a wma file on the smartphone from my application? I need this urgently, any help would be greatly appreciated. Thank you!!! ...more >>

I want to create a thread object to find any duplicate characters within a string and get rid of all the duplicate characters within the string, such as str="abbecdffet". After the thread object runs, the string would become "abecdfet" Any help with this would be appreciated. Thank-you, Dave...more >>

Is it possible to dynamically create report and save it in rpt file? For example I want to add an text object in report on x,y position in page header. I need that dynamically, because I have a lot of reports made in Visual FoxPro. It would be nice if I could make a converter. I read VFP Re...more >>

Hello, I am devoloping a MDI windows form app. using c#. I had two child form- frmChild1 and frmChild2. Now I put a textbox(txtUserID) on frmChild1, after user input text into the textbox, I want a label on frmChild2 can show the UserID as soon as frmChild2 started. Could anybody help me on...more >>

I'm trying to understand the search algorithm done when the CLR (?) is looking for DLLs. At first I've put the DLL(s) in the cache by "gacutil -i foo.dll" and the program using foo.dll works fine. But then I became aware of "program.exe.config" could also define a path to foo.dll {*]. So in...more >>

Hello all, Does anyone have any C# code to replace this working VB6 code ... when i move it to VB.NET is does not work as illustrated below. Ineed to keep the form or web form window on top until a button is clicked? Thanks in advance... :) Public Class Form1 Inherits System.Windo...more >>

I get a Null Reference Exception if I close a non-modal dialog (that is, a form opened with Show()) when a selection is made from a ComboBox. The error message refers to Unsafe Native Methods, but the code is 100% managed. The exception is not thrown if the dialog was modal (opened with ShowDi...more >>

Is there a way to get the convert a unicode character such as chinese characters to byes? Everytime when I use Convert.toByte I will always get a System.OverflowException "Value was either too big ot too small". Is it because unicode characters require 16 bits? In that case how to I convert ...more >>

If I have a "Handle" of a TreeNode, how can I refer to the treenode? For example, if the treenode is tn then I want to get tn.Text or tn.Index. In other words, TreeNode has its pointer property as Handle, how do I crossreference? -- Thanks for your help. Harshad Rathod ...more >>

Ok, I tried to use the concat function. It's in the Help, but it claims it can't find the namespace that contains 'concat'. You'd think there'd be a note in the help system if I have to use some library... Can anyone guide me? (I told you all I was new.) ...more >>

How can I convert strcat and strcpy to c# #include <string.h> #include <stdio.h> void main( void ) { char string[80]; strcpy( string, "Hello world from " ); strcat( string, "strcpy " ); }...more >>

When a library user runs their exe I want the dll to display a message. How can this be done? Thanks in advance. ...more >>

How to make .NET dll appear in the Add Reference dialog. What in general is the Add Reference dialog for? ...more >>

Dear Anyone, While most of you will laugh at the fundamental nature of my question, I am a bit stuck. I am a reasonable VC++ programmer trying to make the switch to C#. I am trying to create a simple app in which the user selects a list item, double-clicks it and then a dialog box is creat...more >>

Hi, can somebody explain in simple terms what is necessary to redistribute the ..Net framework (dotnetfx.exe)? -- Daniel A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing on us...more >>

Hi. I am currently serching for component which could be used for handling ..doc and .rtf files. Component should be able to: * insert custom text into files * insert images into files * insert HTML formatted text into files * print files to TIFF documents * export files to HTML * find/...more >>

1) I have created a visual control that relies on a logic class to do much of its work. 2) The logic class will be assigned on the form through a register method. 3) I have a public property for accessing the control defined. 4) To avoid other people calling the control before it is initialized...more >>

Hi, i'm programmatically writing some text on the picture box. Every thing goes fine. Now for some reason I want to first write that text onto a bitmap and the set it as a source (picture property) of the picturebox. As soon as I use this bitmap approach the text quality is badly effected, speci...more >>

Hi, I am working on a Windows-based client-server application. I am involved in the development of the remote client modules. I am using asynchronous delegates to obtain information from remote server and display this info on the UI. From doing some research, I know that the way my implem...more >>

I'm writing a scanner application (C# / .Net CF) where I have one scanner object (singleton) that hooks into the scan engine drivers. There is scanner event for a successful scan, that passes through the scanned data to an event handler. From here I need to pass this information back to m...more >>

OK, Ive run my head into this wall for too long. I need help. I am developing an applicaiton in C# to present a user with a GUI to specify a configurable list of machines that he wants to listen to the output of. Specify a filename to shove all of the data (into Excel), and start the whole ...more >>

I have an app written in C# (obviously). Here is my dilemma: The form loads, instantiates a bunch of worker threads that execute one at a time. When one finishes, it starts the next one in line. I have about 5 datagrids on 5 different tab pages in a tab control. What I'm using the Threa...more >>

Sorry for my silly question... in the same way we can define in a DropDownList the "ValueMember" and "Display Member" when we bind a DatasSource, how could I do it using a hard-code fixed datasource (without neither access the DB or create a DataTable)? To be as clear as possible, if I w...more >>

Does anyone know if or when anonymous class support will be added to C#? ...more >>

Hi there, i'm using (Ax)WebBrowser object in a c# application, to show a preview of web contents. Into theese pages there are same js functions calls, that raise many and many errors (by alert message) because in this phase the runtime enviroment is not present. How can i filter theese mess...more >>

How can I convert the VB 6 statement below to C#? MSComm1.Output = Chr(&H1B) + "I" & Chr(13) ...more >>

I have got two classes, one is Device and the other is Buffer. Every Buffer instance has an associated Device instance, since all Buffers have to be created with Device.CreateBuffer(). Now i want to be able to notify an event to all Buffer instances associated with a certain Device. At the same t...more >>

I couldn't find what I was looking for doing a search through the = newsgroup, so here goes... I'm have a Web site user registration confirmation page that I want to = show a set of random numbers (images) which the user has to look at and = type into a field for verification that this is real...more >>

Is it possible to overload properties - and if so - how? Mayby there is another and better way to do what I'm trying to do so if you have any suggestion I would be happy: I have a number of properties to set and get values, but I want my properties to be able to return a type that is corresp...more >>

Could someone please explain what the consequence of this //****** line is? public void SecondThread() { lock(m_smplQueue) { Monitor.Pulse(m_smplQueue); while(Monitor.Wait(m_smplQueue,1000))//****** { int counter = (int)m_smplQueue.Dequeue(); ...more >>

Hi, I am trying to automate our build process using NMAKE. However, CSC.EXE, C#'s command line compiler, does not appear to set ERRORLEVEL when an error occurs. Does anyone know how it can be determined that a compilation error has occurred in CSC.EXE? Thanks Gem ...more >>

hi all, I have written a C# Service which is a Server accepting Clients,It is working fine when i connect from localhost but when i connect from any other machine to my machine , the service is not working, the Service is in "Network Service".....i even tried "Local System" and also "Local ...more >>

I need some concise, easy to grok examples of what .Net (preferably C#.Net) has over just using old ASP or PHP with JavaScript. See, I'm a PHP guy, and while I started server-side scripting with ASP, I hate it. But last year I had the opportunity to work with a company that was developing site...more >>

Hi All, I have written a windows service which runs a small windows application. This windows application queries a sql server database and depending on these results, sets appointments in outlook. When I run the windows application outside the service it works fine as designed, but wh...more >>

Hello ppl! How exactly do I close all the database connections that was open in the config file and how do I use the destructor in C#. Thanks a lot!...more >>

Some argues that you should not use the C# keyword "object" instead of the real type System.Object. What would be the general rule of thumb for choosing one over the other? Thanks in advanced. -- Gaemic!...more >>

Hello, I was wondering if there was a way, using C# and .NET, to create a function that is called when the user changes his\her password. Thanks, Aviv. ...more >>

All, How can I use this code to encrypt and decrypt a file? Can I use the filestream or does anyone have any examples of encypting a file with 3DES or AES. Any help is appreciated. using System; using CodeProject.Chidi.Cryptography; namespace CodeProject.Chidi.TestConsole { /// <s...more >>

I want to programatically set the group security policy . How do i do this. Thank you...more >>

Typically when passing by reference you point to the location of the variable, and can modify the original When passing by value, you include a disposable copy of the variable, but it protects the original. The "ref" keyword lets you write as if passing by value, but it does the work of pas...more >>

Hello, I have created a client-server application using TcpListener and TcpClient. But the TcpListener stops listening after some amount of time if the client does not send any data. What is the default timeout of TcpListener? How can we change it? Thanks...more >>

Hi all, I have a user control and a form. I want the user control to be visible when the form is shown. I haven't found a good webtutorial on this so maybee someone can help me out? regards Stijn...more >>

How do I format a DataSet (DS), generated from Access, which loads a Textbox (TB) to only show the date in the TB instead of the date and the time? Details: My TB is filled by a DS containing the Date column from an Access file (i.e. DS - TableName.DateIn). Access file only shows date (no ...more >>

Hi All, I am doing socket programming. Client is in C#.Net 2003 and Server is in VC++ 6.0 When Server uses csoc class than it connect & communicate to client without any problem.... while it uses api on server side so it is not able to connect it throws an error no 10061... Syste...more >>

I am trying to test if a number is between and certain range. Is there a clever C# way to do it that is better than this? if (((Convert.ToInt64(strRequestSpecific)) >= (Convert.ToInt64(strStartRangeLessZero))) && ((Convert.ToInt64(strRequestSpecific)) <= (Convert.ToInt64(strEndRange...more >>

when i get an unhadled error the dubbuger stops at the main procedure at -->"Application.Run(new Form1())" and the stack is empty. But if i run the application without the debuger a must more informative window pops up giving all the error info i want. How can i get the same behaviour when worki...more >>

I have to create output file in a text, MS Access, MS Excel and .dbf format from C# Win/ADO.NET application. Data are collected in DataSet and there is no problem to make text file. However, I have to create a new output files (tables with defined fields) in other 3 formats, and to fill them w...more >>

Hi all, My application starts in a class Controller (contaning the Main()). When the program starts the Main is called but is the the Main() called before or after the constructor of Controller? regards Stijn...more >>