C# question: Is there a way to prevent a button from getting the focus and from being painted with a rectangle of small dots when clicking on it? Specifically, I have a form with 2 TextBox and a Button: say I am in the first TextBox and the Button is the next control in the form. What d...more >>

Hi, I am looking for a way to determine het user that is running a certain process, I can retrieve the process ID by calling the GetProcessByName("test") method which will return all processes named 'test'. But how do I retrieve the user that is running the process ( the process 'test' is s...more >>

I am trying to get a vale of a column. Above gets me null, but it seems that I do have data. How to get data out of a column? tia, ..V...more >>

I'm trying to convert an existing C# project from .NET 1.1 and Visual Studio 2003 to .NET 2.0 and Visual Studio 2005. I was using NUnit 2.2.0 to run my unit tests under .NET 1.1. I installed NUnit 2.2.5 for .NET 2.0, compiled my test suite library with VS 2005, and then ran it. (So far I ...more >>

Hi, I've read that the if/else statement, or get/set accessor, can be compiled inline by the C# compiler if they are small enough. Have you seen any documentation that 'summarized' all thoses optimizations tricks? I would like to be aware of all tips and trick that should be used as goo...more >>

Hi all, The following are my need: 1. When a PC starts, my software should come up directly without any user interaction. 2. Only my software will be accessible to the user and they will not be able to access anything from Windows - nothing at all. 3. A super user can access the software as we...more >>

I have a problem where, depending on the text of a button, the display of that text seems to change size or alignment. Here is the code: HomeScoreNameButton.ForeColor = Color.Green; HomeScoreNameButton.Font = new System.Drawing.Font("Tahoma", 8.50F, System.Drawing.Fo...more >>

Hello, I wonder how i could interrupt the execution of a method. Like : My method can work on some lerg text file (severals Mb), and i would like to interrupt it by pressing "escape" tuch for exemaple. How ?? Thank you! :) Const....more >>

I have a property in my class like.. Int32 iVal; public String Val { get{return iVal;} set{this.iVal = value;} } Strange that compiler does not pick it up as error because of type mismatch. ...more >>

When using a DataReader to return records from a SQL server, I'm having a problem with the following code (abbreviated) int ID = 0; ID = (int)dr["user_id"]; will work if the user_id column is an int field. The same code throws an invalid cast exception if the user_id column is a smallint...more >>

I have a hierarchy of message classes. Many times when messages are created/received by a class, an event is generated to let the outside know. Also, the message is passed along when raising the event. To follow the .NET event guidelines, each message class therefore needs its own EventArgs...more >>

I have a TV tuner card and can display TV on my PC via the software that comes with it. But it would be really cool to show it in my C# win app in a form. Any idea if this can be done or how to go about it? Thanks, Ron Cook ...more >>

I have a class definition : public class PagingList<T> : List<T> { private int pageSize, pageNumber; public PagingList() { pageSize = (this.Count == 0) ? 1 : this.Count; pageNumber = 1; } My problem is that this.Count is 0, apparently the lis...more >>

I have class definition like so: ...more >>

Say I have four projects - one is an EXE and three are DLLs. The EXE references all three DLLs. If I update one of the DLLs and compile, next time I run my EXE project, it will get the latest version of the changed DLL and use it. How do I keep the EXE project from getting the latest version ...more >>

Anybody out there know how I could go about handling, in a systray'd app, the windows message that the desktop is going to be locked? This way the application can react whenever the Win+L or Ctrl+Alt+Del+L is used to lock the computer. I realize this will probably involve some Windows API work, ...more >>

Is it possible to disable sort temporarilty ? without changing current row ? I want to add a row to a specific location. But if user sorted the datagridview row goes to a wrong position. That 's why before calling InsertAt() method i want to remove current sorting. Is it possible ? ...more >>

Hello, Just starting C# with MS Visual Studio Pro 2005 ... How do I access array data which is in an external file? I would prefer to have it there to make the code less cluttered.. Thanks Geoff ...more >>

I tried an implementation of overriding a ComboBox control. I am simply trying to avoid it repainting, but I can't seem to get it to work. What am I doing wrong? Please help. Thanks, Ron using System; using System.Collections.Generic; using System.Compone...more >>

Hello, I need to upload a file using ftp protocol, any sample csharp code avaliable ? FTP Server is located on a mainframe and Complete Ftp Session should look like this. How could I write a routine for this process ? ////////////////////////////////////////////////////////////////...more >>

update/insert with microsoft.xml.xquery(.net2.0beta) can anyone provide an example of how to update/insert with microsoft.xml.xquery? ...more >>

Problem with mapping a directory tree to a tree control: It takes a while to recurse subdirs and map them to nodes. This is solved in some books I've seen (MacDonald, Albahari) by reading the subdir only when its node on the tree control is opened. Has anyone pre-packaged this functionality ...more >>

Hi, I have asked this question before, but did not get anything useful from it - so sorry that i am asking again !! How do i prevent an application from appears more than once in the ALT+TAB menu. As it is today, my application will show an icon for each window visible in the running appl...more >>

I have two projects that currently need to refer to each other. More precisely: Proj A: Class 1 refers to Proj B Class 1 Proj B: Class 1 Class 2 refers to Proj A Class 1 Visual studio, for good reason, doesn't like that. Obviously I co...more >>

I have a the requirement for a class to alert via an email message when an error occurs. In this main class, I have wrapped the main logic into a try catch statement. When an error occurs, inside of the catch statement a call to an alert class is invoked which in turn sends an email with the...more >>

I want to drag an object from my application into Windows Explorer and have it create a new file, but the object I want to drop is not a file to begin with. It seems the only thing I can do is create a temporary file, then call DoDragDrop with the temp file's name, then delete the temp file aft...more >>

I have a table that stores data points for several different data sources. The general format is: DECLARE @Data TABLE ( DataID int, TimeCollected int, DataValue decimal(9,9) ) INSERT @Data VALUES (1, 1000, 0.75) INSERT @Data VALUES (1, 1001, 0.69) INSERT @Data VALUES...more >>

Hi I create a struct, or a class and I'd like to know which are the members available.. by code something like pubic class nico { public int age; public int old; } and somewhere , i could do something like this foreach(Members member in nico.Members) { member.Value = i; } See...more >>

Thanks to Peter Bromberg for showing me how to detect if a virtual directory exists. Now I need to determine what folder the virtual directory points to. For example, I have the following C# code. It correctly finds the 'MyVirtualDirectory' virtual directory. Now, what method do I call to d...more >>

Is it possible to attach a form (C# .NET 2) to windows service and show it in OnStart event? When I tried to do this in general (new, Show()) way it just didn't do anything nor gave me any errors. I want to use this form for interaction with the service. Thanks! Vit Zayko...more >>

What is C#'s analogue of Delphi's TAction ? If there is no one, how to implement the same functionality > Oleg Subachev ...more >>

Basically I want to do something like this (psuedo-code): you have: MyClass MyObject; which is instantiated in the form load. You have a copy function: { MyClass MyObjectCopy = new MyClass(id); foreach (property p in MyClass.properties) { MyObject.p = MyObjectCopy.p;...more >>

Hi all, I'm still learning about dispose()'ing of resources and i'm curious if there is anything I should do in the following circumstance: rtbBrowseEntryBody.SelectionFont = new Font(<font info>); By using the 'new' keyword i'm allocating memory. Should I do anything to free this memory...more >>

Hello, How can I set the attributes for a directory? The File class has a SetAttributes method, however the Directory class does not. Thanks in advance, cj ...more >>

Anyone know how I can programatically detect whether a virtual directory exists on a machine my app is running on? And how to retrieve information about that virtual directory? Thanks very much. Amos. ...more >>

Hi, How do you set an attribue on a return value ?? In Microsoft.SqlServer.Server you got SqlFacetAttribute wich I need to use on my CLR function that should return a SqlString(MAX) - the SqlFacetAttribute must be set on the static methods return value to do this. [SqlFunction(Name= ".....more >>

I am writing a little appliation. One process I want to do is to copy a folder to a different location, delete the contents of the original folder, and fill the original location with new files. It's a relatively simple process, but I've run into a little snag. With Full Control privileges, I am...more >>

How do I programmatically prevent a service from stopping? I want to be able to keep my service running (started), under certain conditions, when a user tries to stop it. I have tried throwing an exception - from OnStop(): the SCM waits for a long time, reports that the service didn't respon...more >>

The following code snippet fails to compile with "a local variable named n is already defined in this scope." This makes me uncomfortable, but I could not tell you exactly why. My instincts are telling me that each case should be a seperate block, I guess. Any comments? public class MyClas...more >>

Just received the Visual Studio 2005 Pro DVD. One question - VS2003 had 2 options when building - 'DEBUG' and 'RELEASE'. I can only see 'DEBUG' as an option in VS2005 - how do we do a RELEASE version? Is or it all down the web.config file? ...more >>

Hello, I have my code pages in App_Code\Subdir\ *aspx..cs folder, the coresponding aspx are in \Subdir\*.aspx . Compiler can't find the aspx when compiling the aspx.cs and generates error for the controls from the aspx page. This code is working perfectly in vs2003. should I include a...more >>

Hi all Is there any way to do something like this: SomeClass A = SomeClass(...) .... foreach (property P in A.Properties) { Console.WriteLine(P.Name + "=" + P.Value); } In other words, I need to be able to see all object's properties values (order is not important), i.e. acce...more >>

I have 2 columns in a grid where the user enters a begining time(TI) and at the end of the day an end time(TO). I then want to take the TO - TI to get the difference and display it as hours and minutes. If the result is 7 hours and 45 minutes I would like it to be able to display it 2 ways...more >>

I am re-architecting a C# application written as a multithreaded Windows Service and trying to squeeze every bit of performance out of it. 1) Does the thread that an object is instantiated on have any impact on its performnce? Example: if I instantiate object "X" on thread "A" pass a re...more >>

Hi Friends, I have used DataGrid in my application. My client requirement is the field change is written to the database as soon as the user navigates away from the field. Please suggest me how to do it. Regards, Prakash. ...more >>

How do I extend a template class for a specific template data type? I am trying to achieve something like.... public class SomeItem{} public class SomeProcess < T> { } and now the extension public class SomeProcess<SomeItem> { public SomeMethod() { } // special code for just this com...more >>

I need to make a c# program that will do uploads and downloads at 9am and 3PM. The server is here, so I have access to it. Do I make a console app and schedule it as a task. Or is there a better way. Is there some code out there already to do this. I need to be able to keep track of the files I ...more >>

Hi all, I have a windows application in which I open a non-modal window on click of button. I want to close that window in case of an event raised on my application. This non-modal window is in different assembly than the assembly in which the MDI form is. So if there is a way to get a co...more >>

i am trying to make a program that opens diferent programs from th numpad key. my question is :can i make those keys have more the one assigment like for example standard if i press it opens iexplorer but if i press control for example can the same button open a diferent program?...more >>

Hi! On a form I have a calendar. The form is rezised to 1024x768 (Don't worry - this is a training case) when loaded. Now I want to center the calendar on the form so that its edges are equally far from the upper, right, left and bottom borders of the form. I understand I must use the loc...more >>

Hi! On a form I have a monthCalendar which display all months of year. Now, as a training case here at school in C#, I'm trying to print the calendar. I've found, I think a good example how to print graphics, but it doesn't work quite as I would expect. Here's the code I found ("kalle" i...more >>

any body knows of a good resource on the internet on creating .NET plugin for windows media player, i need to write quite a basic plugin that monitors what is currently playing on a windows media player instance and stores a log of it in some file like say XML file. *** Sent via Developersde...more >>

Hi, We just closed a release (say, version 7) of our app which was using .NET 1.1 and for the new release (version 8) we are going to use .NET 2.0. Problem is that we still need to support version 7 for .NET 1.1 and at the same time on the same machine(s) do new development for v. 8 with .NET...more >>