Hi all you gurus! Whats the biggest difference between using a string[] x; or an ArrayList x; When to use wich? Regards Martin ...more >>

User is going to be transferring items out of combobox to listbox and vice versa keeping ascending and desending order respectively at all time. If user selects the last item in combobox, the program is supposed to display a message box stating that there is no more item in the combobox with...more >>

Hello there, I am trying to do very simple thing in trying to return results from an Oracle (10g) Stored Procedure using the Enterprise Library June 2005 Version. The stored procedure first: ============================================ CREATE OR REPLACE PROCEDURE AGENCYSELECTALL(p_cursor O...more >>

Hi, all! Right to the topic: In the main menu of the form I have View->Image-> and then 4 submenu items (let's call them original submenu). I want the same submenu as a Context menu. To do this I use such construct: foreach (MenuItem mi in this.menuImage.MenuItems) { mi.Enabled = im...more >>

/* GraphicsPath.IsVisible() gives unexpected results. I fill a System.Drawing.Drawing2D.GraphicsPath-object with PointF-structures that define the unit-square (0,0), (1,0), (1,1) and (0,1). Then I test 3 different PointF-structures to see if they fall inside the unit- square and the result...more >>

Hello! I guess this is a silly question, but I've asked google with no luck .. so here goes: Is it possible to place the assemblies associated with a .NET client (i.e. winform / console) application in a dedicated "bin" directory as is the case with ASP.NET applications? Although I ha...more >>

Hi, I was wondering why it is that when adding a collection of controls to an array list, you must use AddRange, instead of Add. Thanks in advance for any ideas Ant...more >>

I'm getting the follow error message randomly and then my application crashes. How can I locate the bug code and how can I fix this? Managed Debugging Assistant 'DisconnectedContext' has detected a problem in 'C:\Projects\UnityAdmin\bin\Release\UnityAdmin.vshost.exe'. Additional Informati...more >>

Hi, I have created an application that displays various information about Active Directory objects. Is there a control or a way to mimic the "Windows" command on the Active Directory's Users and Computers MMC Snap-in, where user can select to create a new window inside of the snap-in. This...more >>

I have a simple test app with one form, one datagridview, and a contextmenustrip. I've assigned the menustrip to the datagridview and given the grid one column. There isn't any data in the grid. I never see the context menu appear when I right click the grid. Any suggestions? Thanks, Bre...more >>

Is it simple or difficult? I have a chance to start coding business applications in C# (and totally move from Java to C# (and other MS technologies) I've 4 years experience in Java (J2SE, J2EE, JSP/Servlets) -- razor...more >>

I'm writing a windows service wich shall be able to access certain resources (files etc). So accessrights will have to be configurable by a local administrator. One option is to use the account under wich the service runs wich can be set while installation or in the services window. Anot...more >>

Hello, I have developed a simple c# .NET program in VS2005. It runs fine on one PC. However, on another PC, the form displays too small. It does not stretch to fill the screen and resize proportionately. Is there a library available to do this or how can I do this in code so that the form w...more >>

Hi has anyone come across a function to check if a particular string can be safely converted to a datatype i.e. i would like to check things like TypeCheck("1/1/2006",datetime) -> returns true TypeCheck("fred",datetime) -> returns false Typecheck("100"),int32) -> returns true Typ...more >>

Hi there, every time I try stepping through C# projects in VS 2005, I am plagued by the ContextSwitchDeadlock error messages. Is there any way of avoiding this? ...more >>

Hi, Is there a way to prevent Socket from assembling the packages it receives? short explanation: I have an application A that sends like this: for (i0; i<4; i++) { MySendSocket.send(sendBuffer, count, SocketFlags.None); } ....and a receiving application that receives like this: wh...more >>

If C# (VS 2003) allows switch on null, why does it not allow "goto case null": switch (someString) { case "BlahBlahBlah": break; case null: break; default: goto case null; } Compiler error: "No such label 'case 0:' within the scope of the goto statement" Is this an...more >>

I'm attempting to improve some serially executing code (that uses the SerialPort class) bogging Windows down when it runs. To do the 'antibogging' I'm following the example from MSDN Windows.IO.Ports.SerialPort page and use threading. I'm not sure if I'm creating problems with this implemen...more >>

On .Friday and .Saturady and .Sunday in thie followign if statement (The code is form deitel book; I am writing the same code on my own) if ( dropOffDate.DayOfWeek == DayOfWeek.Friday || dropOffDate.DayOfWeek == DayOfWeek.Saturday || dropOffDate.DayOfWeek == DayOfWeek.Sunday) ...more >>

>From MSDN: http://windowssdk.msdn.microsoft.com/en-us/library/scekt9xw.aspx C# Language Reference is (C# Reference) Checks if an object is compatible with a given type. For example, it can be determined if an object is compatible with the string type like this: if (obj is string) { ...more >>

Hello -- I have code that sends an SNMP packet using the Socket.SendTo method. When we sniff the packets using Ethereal, the UDP header checksum appears to be all right, but the IP header checksum is 0x0000. This results in my SNMP packets being rejected at the server. Does anybody know an...more >>

I'm gettting this error at "Application.Run" in the code below. The error message also says "Out of Memory". How can I find out more about what's causing this error? It just breaks there with no further information. static void Main() { Application.EnableVisua...more >>

I have a mystery where my scrollbar behaves differently from when I use it's slider/arrow keys compared to when I manipulate it's value with a onMouseWheel event... When I manipulate my scrollbar's controls (the slider or the arrow key) to go to the bottom, Once it reaches the bottom and c...more >>

Hey guys, I've written several NT services before using Delphi. When I did, I would typically use the timer component and have a particular procedure run every, say... 30 minutes. What would the code (in C#) look like in order to create a loop under the Service1 procedure that would ru...more >>

Is there a managed way to code a logout? I have it currently using ExitWindowsEx winapi, but I'd like to switch to managed. Thanks...more >>

I'd like to detect a condition when a user presses a predefined keyboard combination. For instance, left shift + right control + 5 on the number pad. I've tried the KeyDown event on the form. But I can't determine which shift (or control) key was pressed (right or left). I've tried e.K...more >>

I'm passing instance of List<DrawNode> to my method AddRange(IEnumerable<DrawObject> objects) But I got this error: Argument '1': cannot convert from 'System.Collections.Generic.List<MyNamespace.DrawNode>' to 'System.Collections.Generic.IEnumerable<MyNamespace.DrawObject>' I don't under...more >>

Hello there, Not sure if I'm in the right newsgroup but here it is anyway... I store web passwords by encrypting them using a simple MD5 .dll I wrote a little while ago using C#. User passwords are stored as binary data in the database. When a user enters his/her password the newly entered...more >>

Greetings , I'm studying for a MS exam and I'm a little confused about assemblies. Not what they are but just a specific comment that I'm reading and it doesn't make sense to me. It reads "Assembly resource files are preferred for use with localized data that is not tied directly to the ...more >>

hi all ive got a winform that displays a list of word documents that are stored on a remote server. when he clicks an item on the list, the requested document should open (as a read only) so he can view it. to access the remote documents i had to create a web service (for securiry issues) and ...more >>

I have a DLL that checks to see if a user has locked their desktop. The code is below. When i use this code a command-line, everything works perfectly every time. I can lock the desktop and it returns "true" every time. However, when I install it as an NT service, it works the first time and the...more >>

We have an application developed originally by a third party developer (who is out of the picture now). The application is a combination of several projects, a web service, and a web site application. The application was written in VS2003 and C#. Upon receipt of the application, I converted...more >>

Hi, While writing code for creating aspx controls dynamically, I noticed some strange (at least to me) behavior. Look at this code; // FreeQuery : System.Web.UI.Page // void cmdDo_Click(...) GridView grid = new GridView(); grid.DataSource = source; this.Controls.Add(grid); // HERE ...more >>

Hi All: I have array of objects that binds to a list box control on win form. My problem is I do not want to display every object in the array on the list box. Is there an event or function occurs in the data-binding object, which allows me to control actual items that display on the screen. ...more >>

Hi, I'm trying to migrate from Java to C# and have encountered a problem. I can't seem to find a way to create (ultra)condensed fonts for later use in a program. In Java I had a really nice method some_font.deriveFont(AffineTransform), which would return a new font. (AffineTransform was jus...more >>

Hi, If I am not sure how many items will be in my Hashtable/ArrayList dynamically (multiple threads can add/remove/check the item), however, I can estimate the total number will not exceed 60000. How much can I gain in term of performance if I decalre the hash as Hashtable h = new Hashta...more >>

I'm trying to make a configuration menu similar to the one in the Firefox options screen, with an icon-based toolbar at the top. I'm using the ToolBar object which gets the icons from an ImageList. However, the PNG files that I am putting in the ImageList look all crappy compared to the origina...more >>

I am using VS2005 c# project. While debugging my program, (pressing F10) after a while the debug disappears(the yellow line is gone). Does anyone know what causes this to happen? It is not happening in a same line, it is happening in a one method but arbitary lines. Any ideas/suggestions? T...more >>

I need to create a application that acts as an Active Windows Desktop. I can currently get a form with controls to behave like the desktop and I use API functions (SetPosition()) to force it to always be on the bottom. The problem is that the code to force it to be on the bottom does not always ...more >>

I have a design question. I am creating a custom collection of products. The unique key for the products is productId which is an integer. By default, IndexOf(object obj), when obj is an int, would return the value of obj because it returns the index of the item at position obj. Though...more >>

Is it me, or does it seem like they put no effort into creating the listview control in .Net. >From what i can see, it is actually LESS powerful than the vb6 listview. A few gripes I have with .Net listview that aren't present in vb6: -Inability to set tooltiptext of subitems (without the...more >>

I'm currently writing an application (using Visual Studio 2003 SP1 and C#) that stores files and additional information in a single compound file using IStorage/IStream. Since files in a compound file aren't really useful to a user, I use the IStream::Read function together with a StreamWriter t...more >>

Hello All, My question is about the proper way to setup a listening socket. I have the following code that works fine: IPAddress localAddr = Dns.GetHostEntry(strHostName).AddressList[0]; Int32 port = 25001; TcpListener tcpServerListener = new TcpListene...more >>

Hi! I am currentlly working on a project where I need to query the database and this query returns around 1M rows that I then need to process. I`m currently holding it all in a datatable, but I have a feeling that this type is very unefficient. Does anyone have an idea of a more efficient way...more >>

Hi, I'm using XmlSerializer to create an object from the XML string. I would like to know whether I can get a null value for an empty XML element. Actually the XmlSerializer assigns "" (empty string) for a string if the corresponding element is missing in the XML. Input XML: <DemoClass><...more >>

I have a Windows Service Application having 2 windows service classes. In the first one I have this stmt: ServicesToRun = new System.ServiceProcess.ServiceBase[] { new RequestProcessorService(), new EmailSenderService()}; System.ServiceProcess.ServiceBase.Run(ServicesToRun); inside the ma...more >>

no "rename" operation in C# !!! - this has been covered in this group before, but I can't find any good answers. what I am trying to do is refresh the content in a file with minimum performance impact on any read operations to that file - a common task right.... in the unix world the way...more >>

Hi, Please can anyone tell what is lang-codepage peovided in VerQueryValue method when one is trying get the FileVersionInfo for a particular file - say DLL. I need a simple definition of what is "lang-codepage"? Thanks JP ...more >>

Does anyone have a good starting point or bookmark for creating a windows form that allows inputting a xml according to a known schema? PS. For now, I'm still with Studio 2003. I have found the XSD.EXE, is that perhaps what I need? ...more >>

Hi, I need help on this one. Any help would be appreciated. Im doing a UDP client - server connection. I want a client with only one instance of the UDP and binds the port to do both sending and listing. And have a server with 2 instances one for sending and one for listening whic...more >>

I want to get the mails etc. from applications like Outlook,BullHorn in Database of SQL server or Oracle using C#.net .Can any one help me in this matter?...more >>

Hi, I am having a strange problem that is probably very easy to correct. This is using the Compact Framework for Windows Mobile if that makes any difference. I am changing some text of an XmlNode that has some data, to "". The original line in the file looks like: <Movement_Date>26/10/2006...more >>

Hi We have .net remoting applications (using .net framework 1.1) I want to implement error handling in much better way to conclude about the problem/failure occurred. What are the standard or Microsoft recommendations when communication fails due to several reasons like Server or Client ...more >>

Hi, I need to copy several files as a post build step of the Test project, to the 'Out' directory of a running test. (The current directory of a running test) Is there any simple way of knowing in the build process what will be the output directory? Thanks ...more >>

Hi, An app deadlocked and I took a full process dump of it using cdb. I can see no end of threads backed waiting for a lock on an object but no thread seems to own the lock - they all seem to be stuck on the lock(me) statement. Using Wnddbg or cdb is there any way to dig down and discover ...more >>

Hi! Could someone please point me out in the right direction here. I have a 32 character long hex-number, and a 11 digit long "key" and want to create a one-way hash number of a not to extensive length (4 digits would be perfect). Is this doable, and where should I start looking (names ...more >>

How do I make use of the Bookmarks property so that I can write a text at/below the position of a particular bookmark or the first bookmark ? private Microsoft.Office.Interop.Word.Document myWordDoc = new Document(); myWordDoc.Bookmarks ...more >>

Hi! How can i add existing resource file to a C# project in VS2005 without breaking the connection? Lets say that i have a resource file, "MyStrings.resx", with one single string resource MY_STRING = "Hello!". When i create this file, VS will automatically add another file to my project ...more >>

I have a form with two list views. In one list view the tile size is set to the default value 0,0. I have not made any changes to these values. In the other list view the tile size has values. I want to reset those values to the default values. However if I enter 0,0, those values are found ...more >>

Hi, To get the USERNAME of all process running in local/remote system I am using the WTSOpenServer and WTSEnumerateProcesses API's but when I invoke the WTSOpenServer in Windows 200 Professional it s returning 1722(The RPC server is unavailable.) error, but the same program is working ...more >>

i'd like to import header file for dos in .net project such as lib.h file...it is usally for dos is it possible...more >>

I have pairs of data: peter - manager mary - secretary john - accountant alan - security What data structure is suitable for storing these data pairs so that I can get the counterpart ? If I have peter then I want to know he is a manager. ...more >>

I am working and tried to start and read an article from MS: http://support.microsoft.com/kb/301659 I followed the step to add reference to my dummy application, Microsoft Word 11.0 Object Library. Also add the - using Microsoft.Office.Interop.Word At the beginning of the code from the ...more >>