Hi, I have doubts. From p/invoke and most site, they recommend to use this. Example1: [DllImport("kernel32.dll")] static extern bool ReadFile(IntPtr hFile, byte[] lpBuffer, uint nNumberOfBytesToRead, out uint lpNumberOfBytesRead, IntPtr lpOverlapped); But I only want to read 1 ...more >>

I use this in a label DateTime d1 = DateTime.Now; this.lblTime.Text = d1.ToString(); but I get the date and time in this format 21.02.2002 23:45:00 I only want 23:45 regards reidarT ...more >>

i am using a webclient to download a list of wavs and mp3s from a web site but it is very slow. From my browser i can download it in about 15-30secs.In the program it can take up to 3 or 4 minutes. Is there more overhead with webclient is is there something else slowing down? I tried to watch th...more >>

Is there an easy explanation on how to use resource-file or different languages on labels, buttons and so on? regards reidarT ...more >>

I have a basic serialization app. I am able to serialize my struct with varying level of success. The problem that I am seeing is that when any of the values in my class (see below) are not assigned values, there is no XML generated for this field. For example, if I only assign a value to Num...more >>

After playing with the code shown and utilising Willy Denyottes' help, I have come to the conclusion that there is some form of difference between the managed WindowsIdentity.Impersonate() over the unmanaged ImpersonateLoggedOnUser(). Below is my code showing a file copy to a remote compute...more >>

Hi all! I have a webservice that checks for mail every x seconds with a timer. I had it set up on a win xp computer and it was working fine. When I recently moved my webservice to a win 2003 server, it seems like the timer stops working after a while. I have no idea why. How can it just ...more >>

Hey dudes and dudies .. Im pretty new in this area. So I was wondering if anybody know a site on the internet that can give me a good start on coding C#.net ? Regards Kasper ...more >>

I don't know if contrasting is really the right word but here's what I mean. Take a normal Listbox (or similar) when the test is selected the text turns blue. If the background is blue the text turns white. This happens in different combinations of forecolor - backcolor combinations. How can...more >>

So, I have an interface with several overriding methods: using System; using System.Collections.Specialized; namespace some.name.space { public interface IVrsPersistenceProvider { string[] Select(string idName, string tableName, string whereClause); string[] Select(string idName, str...more >>

I have a Windows App with a class that reads configuration data from an XML file and then makes the data available to other classes via properties. My question is how do I read the XML file only once and make the properties persist each subsequent time the class is instantiated? Static variabl...more >>

I used SqlSerlver as a database in my c# program. I made a connection string ot connect to my database. I want to use authentication and login name. If in connection string wizard I use Windows Authentication ,I can connect to it, but if i want to use sql server login I can't :(. with predefine...more >>

Hi, I would like to prepare for MCSD exams from home. Could you please suggest me the best books, methods and any other tips for self preparation. Cheers, Naveen....more >>

Hi, And thanks for any help. I am having trouble declaring a struct containing strings that can be Serialized using the following functions. It works, but the strings wont store the right number of characters, they store one less with a null at the end! Whats the point in a marshalling as f...more >>

hi I need to create a custom calendar control.., does someone know of any code example on the net which I can use does the .net framework has the necessary classes to implement the same thanks in advance Tom ...more >>

I tried to open a binary file use BinaryReader. BinaryReader binReader = new BinaryReader(File.Open(fileName, FileMode.Open, FileAccess.Read, FileShare.Read)); This file is open by another process at the same time. An exception is generated said "This file is being used by another process"...more >>

In my web application the user need a visual indication when an item of a DataGrid meets some condition. Is there a way to change the font or the forecolor of the text of DataGrid lines that meet some condition? (Something like the Conditional Formatting of Excel) Thanks! Raul...more >>

Hi, I?m programming a web app using c# and asp.net and I am trying to display a list of performances that are scheduled in the next month, in a listbox. So I need to get today?s date in my code and compare it to the dates of all the concerts and display the appropriate ones. My main problem is g...more >>

Hi! This is a bit offtopic. I am trying to create an autorun.inf file for my CD I can create and execute properly when i am creating it for the file kept on the root. but when i point it to a file in the subfolder it gives me an error. How can I achieve the following 2 scenarios. 1) I want to...more >>

I have a webservice that is returning a dataset. In dataset there is a table with 4 columns. (LDate, LTime, LDepth and ServiceNumber) I then try to read only 2 of the columns into array (double[][] valuesArray;) but i cant get it to work. It is LDepth and ServiceNumber. Both columns has numbers ...more >>

I want to place the location of a file that I am going to read into my config file, but I can not remember the proper format for "share name, folder name". I thought I would specify something like "file///MyShareName/MyFolderName" but it does not like this format and a couple other variati...more >>

hi everyone In my accounting database ,there are several account like Persons,Banks,.... I design them in separated table. in your opinion ,it's better to have all in one table or separated table?? thx in advance ...more >>

Hi, how can i enable / disable MSMQ triggers from code ? Thanks. ...more >>

hi everyone I have a table in Sql that have 2 columns name qunatity and Unitprice; In my application I create an additional column name Total and set it's ColumnExpression just to show quantity*UnitPrice and in sqlDataAdoptor's commands I just update the first 2columns(mean quantity and UnitPri...more >>

I'm reading information from store procedure and I would like to put the result in dataGrid. In all examples and books about working with store procedures is the example only with console. I'm using windows form. My code: void SearchSastojci(string sastojci) { SqlConnection conn = nu...more >>

I am using the AxWebBrowser component in my C# .NET application and am navigating to an outside .HTML file periodically. Whenever I refresh the WebBrowser with the updated HTML file by using Navigate method, it displays it from the top. How do I automatically scroll the view down to the last...more >>

Hi, When writing class library do you validate ALL incoming parameters? Is this a good approach,to valid them ALL!!!,and throw exceptions? I realize that if I am not validating them,than my logged exceptions ,raised from objects or calsses which uses them,are some what more hard to disse...more >>

Hi There! How can I move a print job that is in a queue of a printer to another identical printer? Thank you all in advance!!! MK ...more >>

Hi I have written a .NET service that uses two DataTables to store runtime data. One column in one table is periodically updated (every 10 seconds, and upon user request), another is updated upon user action. The code works fine most of the time. I've had it running on a W2K server for over...more >>

Hi group, I have created a User control and whenever I use that usercontrol in a form, there is a memory leak. When I open and close the form, the form along with my user control is not disposed. It does execute the dispose methods in my form and in my usercontrol. I am sure there is somethin...more >>

I asked this in the VB NG and didn't get a response. I think this NG is no apt to know this kind of thing so I'm trying here. Trying to display the palette that is on the clipboard. I get a palette from the clipboard and I want to make the picturebox display it and realize it as its palett...more >>

Hello, I'm having what I believe a security problem to execute an executable file from a windows service in windows server 2003. It works fine in WIN XP SP2 The program(the service) itself just continues as if nothing where wrong after process.Start is executed and I get an Exit code fro...more >>

Hello, I am writing a class in C# that uses [DllImport("dllname.dll")] to call functions from a C++ dll. Evenything seems to work fine call the functions except one of the functions takes a *File as a parameter. Many of the functions also used char* and int* and I used string and IntPtr...more >>

Hello, I have a bunch of thread in my app doing variuos things. One of them is failing at some point in the app and I can't (actually don't know how) figure out which one it is. Is there a way to set a application wide exception handler that would catch exceptions from other threads? Is t...more >>

Hi, I have text from mime email messages with different encoding that I want to convert to utf-8, but I'm relatively new on encoding problems. I use the following code, but this doesn't seem to work (the in and output remains the same): string x=toUTF8("=?GB2312?B?s8q5q8u+vq3A7aGissbO8bK...more >>

Hi Guys, How do I get all the inheriting types of a specific type I guess I can get this using reflection... Could someone pls point me to an example or resource thanks ...more >>

Consider the following struct: struct TestStruct { public int a, b, c; public TestStruct(int a, int b, int c) { this.a = a; if (b == 6) { throw new ArgumentException("I don't like 6", "b"); } this.b = b; this...more >>

Can someone recommend a fairly easy to use ASP.NET custom calendar control that makes it easy for the user to select the month and year - versus the inherent "paging" that is used in the default Web Control? For example, when i need to select the DOB (April 4, 1970), i need to page "left" ...more >>

Hi, I get following error when creating an ASP.NET project : named "http://localhost/WebApplication1" --> ERROR : "URL:'http://localhost/WebApplication1', 'HTTP/1.0 503 Service Unavailable" No error though when I create like this : http://127.0.0.1/WebApplication1 I checked the fil...more >>

I think I've found a bug in the timer control. I've got a class which uses a timer control. It imports it from System.Windows.Forms This timer ticks once a second, and then updates a label which represents a clock on a form, to which the original class has a reference. (MVC style) If the...more >>

how can I make it work with my c# .net app? or is it possible? I really need this one from Microsoft, it is bidispl.dll and bidispl.h. Thanks, Trint ...more >>

Hello, I am using a COM component in an ASP.Net application. I have properly registered it. But at some instances it throws follwoing exception: [COMException (0x80010012): The callee (server [not server application]) is not available and disappeared; all connections are invalid...more >>

Hi all. I'm interested in learning a little programming, mainly as a hobby, and I was wondering which of these two languages you would recommend. I know C++ is the most popular, but I've heard that C# might become the most popular in the next couple of years. I'm wondering if C# is good enou...more >>

Hi, I have the following method which contains some repeated code. Could this be reduced somehow? Thanks. private void chooseDatabase() { string dbFile = GetPath(); string systemDB = GetSystemDB(); try { if (File.Exists(systemDB)) { string UserID = GetUser(); string Pwd = GetPwd(); pr...more >>

Hi all, This is the way to append the rows from one datatable into another with the same schema. Here Temp and Temp1 are the datatables For Each rows As DataRow In tempTable.Rows Temp1 .NewRow() Temp1 .ImportRow(rows) Next -Vignesh.S...more >>

I know how to load Cultures & resources but I'm still unable to load my custom calender Cultureinfo ci= new Culureinfo("ar-EG"); Thread.CurrentThread.CurrentCulture = ci; ci.DateTimeinfo.Calender = new myproj.MyCal(); i get an error say that my calender is not correct for the specified cult...more >>

Hi, I have a problem. How should I use WSE (I install 2.0) to verify outside-user connect my web service (e.g. username & password)? Somebody would give me simple sample? Thanks, David. ...more >>