Hi all, Could anybody help me, to know how can we in .Net : - Detect when a USB key is plugged to a computer - Know which account is currently accessing the USB drive I believe i need to create a windows service and propably use remoting. But i would need someone to point me to the righ...more >>

Hi, I have a DataReader which I think may be the cause of connections remaining open to a MSSQL database. basically the pseudo code is below ====== SqlConnection conn = new SqlConnection("connectionString"); SqlCommand cmd = new SqlCommand("Select * from blah",conn); conn.Open(); SqlD...more >>

I am using a PrintPreviewControl to show report output. I would like there to be a way for the user to select a portion of the output, then right click and choose an option which would trigger an event in my program. Is there a way to do this? I gather that PrintPreviewControl is closed and...more >>

Hello, I'm using the IEnumMoniker.Next method, based on an IEnumMoniker reference I've obtained by looking up values in the running object table. The third parameter to IEnumMoniker.Next is an IntPtr. It's supposed to return the number of items actually returned, based on the number reque...more >>

I have an application that needs to use Paypal to verify the legitimacy of a credit card, not the actual charge. The only thing I can find thru Paypal's SDK is stuff that's a COM add-in. Is there a web service that anyone knows of that'll do this process? One that would be free or a single...more >>

Hello, We have encountered some obscure and unexpected behavior of PrincipalPermissionAttribute, if applied to both a class as well as a method in this class. The class permission seems to form an inclusive or with the method permission. We have a different scenario ourselves, but we wi...more >>

Hi, I converted my .Net1.1 application (written in VS2003) to a .Net2.0 application. I let VS2005 do the job as it suggested when trying to load my VS2003 project in VS2005. I then included the output exe from this project into my VS2005 setup project. I used it as a custom action. I then ...more >>

When I double click the form icon in the solution Explorer It Opens the form with an * in its name tab (and indicates that the form has been changed since last save action) HUH ?!?!? I hadnt had even a chance to change somthing Any1 knows what is wrong and how to solve it?!?! ...more >>

Hi all, I have installed dotnet on my Pc. I created one windows application in which i am displaying messagebox. when i run my application what i found is contents are not getting displayed in messagebox. Can anyone tell me why this is happening. thanks in advance. ...more >>

Hi there, I have to integrate a previewer into a desktop application, that retains some links to resources (local files, internet-links, personal mails - this is not of certain concern). This window should be able to give a preview of the document: be it an office (word, excel), an image f...more >>

what is best way to talk to https webpages within .net? any good librarys for talking to https websites? ...more >>

Hi Sorry for this OT post. What is the norm when you have to use 2 or more machines when you develop? I use a workstation as my main developer machines, but quite often I need to use my laptop instead for variouse reasons. How does people tend to handle the issue with saving y our source c...more >>

i use a form to login the system. After database checks System.Threading.Thread.CurrentPrincipal is being set in async call back. During database chekcs, user interface displays a progress bar. And this works fine with .NET 1.1. But i newly ported application to NET 2.0 (Visual Studio 2005) and...more >>

hi all, in my Outlook add-in, I was using System.Windows.Forms.Application.UserAppDataPath to get the user roaming directory. however since moving from Visual Studio 2003 to 2005, I noticed the value returned by this property changed. namely, it went from 'C:\Documents and Settings\<user>...more >>

Once the hotfix for Version Tolerant Serialization is applied to a 1.1 client, can that patched client still serialize to/deserialize from an unpatched 1.1 server, and vice versa? ...more >>

Hi, I need to compile a windows applications with Web References using NAnt scripts? Any suggestions? TIA ...more >>

Hi, I had version 1.1 on the production server and then I installed version 2.0 so I have both installed there. I created a web application using vs 2005 and I move it to the server. When I try to browse an asp.net page I get an error: Unrecognizes Configuration section 'ConnectionString' ...more >>

Hi , I am writing a program that part of than program if to add a new network drive to the user. The adding part i know how to do (by win api "WNetAddConnection2A") but i want to check first if this path (network path) exist of his computer, if it does , what is the drive name. to do this i ne...more >>

Hello Everyone, I am trying to format decimal values the way so decimal point is display only if the number is any digits after decimal other than zero. Example: 9.000000 -> "9" 9.500000 -> "9.5" Does anyone have an idea how the format string should look like? Is it, at all, possible?...more >>

I have a simple program that picks up a file from a folder and emails it to an account on our exchange server using SMTP. Below is a copy of my code for attaching the file to the message and sending it. The email message gets delivered but I can't delete the file afterwards because it is b...more >>

I was asked by my boss to create representation of data by Graphs in VB 6 application. I checked the features of VB6 Graph control as well as Excel graphs. They are not good enough. I tried to find any third party ocx and all I found do not look good enough either. I found several .NET cont...more >>

Hi, If a class implements the ISerializable, does the class has the SerializableAttribute "automatically" defined, and if a class has the SerializableAttribute defined, does it implements the ISerializable interface ? Actually, I'd like to create a serialization utility that can serializ...more >>

I am creating a VS 2005, C# Assembly. I want to create an assembly with a method that can only be executed by one thread across process at any given time (so that it's totally mutually exclusive). I have played around with creating a singleton class, that uses the "System.Threading.Semap...more >>

Can I install Visual Studio 2005 on a computer that has Visual Studio 6?...more >>

Hello, does anybody knows if the Framework 3.0 was 100% compatible to the Framework 2.0? My Information was that the Framework 3.0 was the Framework 2.0 with WinFX. The Framework 3.0 only supports Win XP and Win Vista is not a suitable platform for professional developers, although it wa...more >>

Hi, Does anybody know if it is possible to redirect a method call? Let' say I want to call my own implementation of the message box each time when somebody in my application calls the MessageBox.Show. My application has many modules that are loaded dynamically (Reflections). I want to redirec...more >>

Hello All, I've run into a bit of an issue and I was hoping that someone here could help me. I have inherited a Windows Service written in .Net 2.0 (C#) from a previous employee. It build successfully and I am able to install it on the target machine via installutil but when I attempt to run ...more >>

Hi eveyrone. I am writing a client/server application that has to deal with displaying images to the user. The user will have the ability to add images to entries. Ok im kind of looking for a best practice here on what to do with the images. I am using SQL Server 2005 and i know that i do not ...more >>

Hello! Is there an opportunity to write an interpreter of an own macrolanguage like JavaScript or VBScript for existing web browser like Internet Explorer? Could you please tell me where should I search for helpful information? Best regards, Andrey Dzizenko....more >>

Here's my scenario. Please advise me if you can. I have an ASP.NET web application on a corporate intranet which retrieves some user information it uses from a webservice. The data does not change often, but when it does, my site needs the updated information. The connection to the database...more >>

Hi, I'm developping a form that renders differently when hovered and trigger some processing when not hovered (leaved). The thing is, when I leave my form and another form from my application is underneath, it works fine, but if I leave my form and anything that is not from my application is ...more >>

i have been trying to re-install my Net Framework 1.0 installation after I tried to uninstal it and it timed out on me. I had to kill it using the task manager and now when I try to install again it times out everytime! I used the windows update utiility and tried the exe also but they both j...more >>

Hi, I need to iterate the Fields of given Structure though Reflection in the same order they where declared. Note that I only meet the Structure at Runtime. 'ex.: Structure MyStruct Dim Play As Byte Dim Level As Byte Dim Rate As Long End Structure Dim oMyStruct As New...more >>

hey all, ive read some good articles on the tenents of serialization and when & why youd want to do it, as well as the types. great! now id like to put it to practice. however....none of the articles i found had database examples -- all were files. how do i insert a memory stream into the d...more >>

Hi! If I do the following in VS2003 it works - and in VS2005 it complains about a DisconnectedContext... using (ManagementClass mcDiskDrive = new ManagementClass(@"Win32_Diskdrive")) { // mcDiskDrive.GetInstances() is thowing the exception foreach (ManagementObject moDis...more >>

Hello! I have the following string: <wordX::wordY[wordZ]> I would like to extract from that string three words wordX, wordY and wordZ by Regex usage. Regards Saso...more >>

Hi, I have a problem in returning status code from standard Http Adapter. What I want to do is: I am using Http Adapter in IIS to post xml messages. I have custom receive pipeline to validate the XML message. When I get invalide message, I want to return 406. But right now pipeline raise erro...more >>

Hello. I am trying to use FtpWebRequest to send a file. Everything was initially working fine until the ftp server had a load balancer installed. Now when I connect and try to send a file, I get the following exception: {System.Net.WebException} The data connection was made from an address ...more >>

Hi all, We are trying to debug an assembly which was built in debug configuration on our build server. The output window of visual studio indicates that no symbols are being loaded for the assembly. However, when the PDB file is copied alongside the dll, the symbols load ok. We were a lit...more >>

I have an application that needs to perform some background work, i.e. Logging, wich must not block the main thread. How would I basically design such a scenario? It is obvious that I should do that on an extra thread but I think it is a bad idea to spawn a new thread everytime a log-message is ...more >>

The MSDN documentation about the Regex class seems to have contradictory information. At the "Remarks" section, the documentation states: "The Regex class is immutable (read-only) and is inherently thread safe. Regex objects can be created on any thread and shared between threads. " Howeve...more >>

I am confused about this... I have an app that has worked for a long time in 1.1. I upgraded it to 2.0. Everything works on my local machine, including transmit file. When I deploy the site to a Server 2003 (SP1) machine the transmit file files for some reason. I don't get an exception, ...more >>

Hello, I have created a Windows service that uses the Socket class to listen for incoming connections. I have tested my socket code in a normal windows application for easy debugging and everything worked fine. When I transfered this code to the service and started it up, the service runs fi...more >>

Hello, From what I can tell there is no equivalent in GDI+ to the SetRop2 API. Is this correct or have I missed something? I'm able to use GDI in some cases but not all. My rendering code only has access to a Graphics object and if this Graphics comes from a control or printer all goes...more >>

I am trying to create a stream that writes text to a file and: - automatically creates a new file once the current file exceeds a certain size - makes it possible to be used by multiple threads and/or processes so that multiple threads/processes can write to the same file (all threads use the...more >>

Hi, I would like to define the default value of my property. My property is from type Bitmap^, therefore i was thinking to do : [DefaultValueAttribute(nullptr)] but i does not work. how is it possible to define this property to no pointer ? thx. ALain...more >>

I was wondering what the exact error message is when a user attempts to run a .NET 2.0 application on a machine that does not have the framework installed. I remember in 1.1 it was a nasty cryptic message that was not at all helpful, has it improved any? We are working on a simple tool that wi...more >>

When I try to add a web reference to my web site (I just right click on App_WebReferneces), I get the error "Some of the files required for web references are not installed" and the ok button. I've tried to uninstall and reinstall VS2005, but to no avail. Anybody got any answers about this? It...more >>

Hi! We're having a problem with converting a program from .NET 1.1 to .NET 2.0. The program is kind of an AppServer (which can run as NT service or as a console application), where we don't control which applications are run inside it. Now we have a problem with one application which uses a...more >>

How can I compile my VS2005 c# code to not be dependent on CLR to run? I want people that install my software to be able to run it without having to bother with CLR's and "Windows installers". I would like to generate a binary for lets say Windows XP. How do I do this? ...more >>