Is it possible to copy a DataColumn from one DataTable to another? I have a column with custom caption, default value, and Extended Properties, and don't want to re-create the whole thing for a DataTable in a different DataSet. Help? Thanks. ...more >>

Is it possible to trace network in .NET?...more >>

Hi all I installed the new .Net Framwork and (removed the old (which came with VS Enterprise 2002)) and now When I try load projects VS tells me .. "Cannot find DotNet Framework Directory: System Error &H80131700&" ????????? What do I need to do, ..registry or ???? Thanks Neal -- Neal...more >>

Hello I'm searching for a .net component library, developing WinForms application. Which one would be suggested? Thanks Chris ...more >>

i have a web based application that uses a lot of OCXs. i am planning on rebuilding my application. how do i replace my OCXs. is Smart client an answer to my question. ...more >>

Or must the properties of the Custom Event Log be set in the Windows Event Log viewer? The properties I want to control are: 1. Max Log Size 2. Overwrite events as needed ...more >>

I thought Event Logs overwrite the oldest events when the log is full. I have created a Custom Event Log for a Windows Service app. When this Custom Event Log gets full, a call to eventLog.Writeline crashes the service. When I stop and restart the service, I get a Windows Internal Error and ...more >>

Hi y'all .. I hope this is an interesting one ... Within an executing method, I can call MethodBase.GetCurrentMethod() and retrieve info about the method that's currently running, including parameter names & data types. Is there a way to get the parameter v a l u e s as well ??? ( I know ....more >>

I have an application that displays a splash screen and loads another .NET assembly using AppDomain.ExecuteAssembly. I Create a new application domain then call ExecuteAssembly. It works file, until I exit the application. Then I get an error when the first application tries to exit: A...more >>

I'm looking for a VB.net solution so I can send faxes directly from the GDI. I've found references to the FaxStartPrintJob, which are mostly referenced in C#. Since I'm not a c# programmer, I have little understanding of how to impliment this. Has anyone done this in VB and would you have ...more >>

When I set up impersonation in the web.config file and specify a user and password I get strange results. This line of code will get me the user account I set to impersonate: System.Security.Principal.WindowsIdentity.GetCurrent().Name This line of code will get me my user account ever time: ...more >>

And if not, why not? For example: If I define List<MyClass> foo = new List<MyClass>(); List<Object> bar = (List<Object>)foo; then I get a compile error on the second line. The question is why? MyClass is a subclass of Object by definition. List can only use and expose methods acting...more >>

In my C# code there is a Destructor. I placed some code into it. But it never gets called. I tried many times, can anyone suggest me what to do. Thanks in advance -- Christopher...more >>

Using Win32 it was possible to name a named pipe, shared memory, or mutex so that the object could be used between machines. Is that possible with .NET objects? If so what is the naming convention? Thank you. Kevin ...more >>

Hi, I'm new to .net. I need some info on serialization. What is serialization? Why do we need it? Why objects need to be serialized if they need to be stored in session or viewstate? ...more >>

Hi, I need to run a vb.net or aspx.net file every 10 seconds. The Task Scheduler in Windows 2003 Server can only do it every 1 minute at the minimum, but I need it every 10 seconds. Is it possible to write a small program in VB.NET that would run in the background without using much resources,...more >>

Currently my coding is done on 32 bit .Net Framework. Anyone has the checklist that I can follow while coding for 32 bit, so that the code for 64 bit migration will become easier. Thanks, Smith ...more >>

Hi everyone, I've got a user control with a series of WebControl Buttons, rendered as tabs (for WebForms). I'd like to loop through these buttons / tabs to set their properties. I've used the foreach (Control objTab in this.Controls) construct but it gave me an error "The type or namespace na...more >>

i heard a rumor that microsoft is throwing dot net out the window. is this true?...more >>

Hello, I have created an application that searches to see if a process is running and if it is it maximizes it's window. i.e. For Each AProcess In AProcesses If AProcess.StartInfo.WindowStyle <> ProcessWindowStyle.Maximized Then AProcess.StartInfo.WindowStyle = ProcessWindowStyle.Maximiz...more >>

I'm looking at wrapping an app I have up within a Window's Service. I haven't done this before, and I've been readng through the .NET Ref overview topic on the subject. Basically my question is this. There's a lot of discussion about how you can't use any UI with a service (which makes se...more >>

But there is still some corrections to do: You are assuming that a text starting with RTL chars is an RTL text, that may be wrong. The RTL should take in account the control's RightToLeft property. Try this: Set the RightToLeft property of a text box to RightToLeft.No Write ...more >>

Hello I try to implement "retry" if connection to web ends with "time out". I want to give a chance to prolong waiting for response. The following code is taken from WebRequest.GetResponse() implementation. All I need to do is to modify line with "to change". My client uses derrived HttpWeb...more >>

Hello, I'd like to know, if it is possible, how I could access a ref cursor, returned by an Oracle stored procedure, in my VB.net application using the OledbCommand component. My problem is that the type "OracleType.Cursor" isn't available for the Oledb command, so I don't know wich type ...more >>

Hi, i have a timer that waits for bytes that are received from a serial device and updates the UI (winForm C#) with the result. At the same time that i receive the bytes, i would like to transmit to update the serial device. I have attempted to use threading to achieve this but receiving and...more >>

I'm quite sure this is the case, but I'd like to consult to be sure: If I have a UI which subscribes to a bunch of events which any of a number of threads could trigger... and the UI's event handlers will update that UI's controls, then the control updates _are_ done on the UI thread... corre...more >>

Mine application is used to start other executables using System.Diagnostics.Process. Everything worked fine on windows2000. Now I will run it on XP Professional (with SP2) and got the message "Process performance coutner is disabled, so the requested operation cannot be performed". The me...more >>

hi folks I went thru some major pains with SQL Srvr trying to import a CSV greater than 255 columns (limitation with MS TXT/CSV driver) and had to write my own sp_OA file reader, parsing routines (views), etc.. I'm down to one last issue. I need to get: '(?:^|,)(\"(?:[^\"]+|\"\")*\"...more >>

I have a framework console application being used to send a file as an attachment. The application works fine running as any user until the attachment size gets above about 100K. An administrative user can send an attachment of any size but normal users seem to be limited to 100K. When a ...more >>

Hi, I'm experienced .net web developer. I want to learn to develop windows application. I do not need any explanations regarding the framework itself - i'm looking for a book explaining the concept of windows application (deployment, operating systems, gui windows etc.). Thanks, Yoni...more >>

I have a filename. I want to instruct the system to launch the proper application to view.edit this file type. How would I go about doing this? Tony ...more >>

How do I retrieve the files associated icon from the file system? I think it's based on it's extension. Tony ...more >>

Hello, is there a way to load an existing assembly into an AssemblyBuilder to access and modify the IL-code contained within methods, or is ILDASM the only way to get to the IL ?? thanks Daniel Weber ...more >>

Hi; Is there any way to compile java under .NET where it uses java 1.3 run-time library calls? I have all the source so I can re-compile everything. But the source uses a lot of java 1.3 library calls. (A LOT.) -- thanks - dave...more >>

Hello, I drawed a little FlowChart (with some Rectangles and Lines) in the OnPaint event of a Form. How can I save this Chart for example as a jpg-file or bmp-file? patrick...more >>

We have a .Net 1.1 application that runs as a Service. It prints to various printers. It uses a custom font that we have created. Sometimes when we install the application on a new server and install the font, we have to reboot the server *twice* before the application recognizes the font....more >>

I don't think it is possible, but is there anyway to redirect to a full screen from a redirect call within an iframe?...more >>

I am using FO (XSL) via JRE on my PC using FTP getting the fo files to make PDF files from XML files. Can the server be used to make PDF files in .NET from XML files? ie can NET make PDF files from XML files? I have no JRE on the server and it runs Windows. Trevor ...more >>

Hi, On Win XP, Control Panel, Add or Remove programs I have entries for both the following: Microsoft .NET Framework (English) v1.0.3705 size 1,008.00MB and Microsoft .NET Framework 1.1 size 36.15MB Do I need both or can I delete the v1.0.3705 ? Thanks, ..... tom .. ...more >>

Hi, I am a total newbie in the Internet programming, so I would like some general advice of "what to start from" kind. First I will explain what I want to do: Suppose there is a web page that requires a logon, and then the logged user can add her/his comments... so this is a kind of a for...more >>

Hello, I am adding rows to the data table without primary key defined using the DataRowCollection.Add(object[]) method. When I am reading the table directly or using its default view or a view with order set to "", I would like to process the records exactly in the order in which they were ...more >>

Hi, I have a form with 2 buttons: button A starts a long running process which periodically calls Application.DoEvents() and button B which stops the process by throwing a special exception trapped by the processs itself. This works fine in the debugger, but running outside of the debugger...more >>

Hi, I got error 1935 when trying to install .net v1.1 distribution on 98se box. Please help. Thanks. ...more >>

hi, how can i automate the build of a vb.net setup project ( .vdproj) ? i've to build a setup project on a machine that don't have VS.net installed, but only the .net FW 1.1 i've found a solution via DEVENV.exe , but i think i can't use this program without a regular vs.net license ... Can i...more >>

Hi, I'm using the Monitor class to perform some simple synchronization between threads. In the documentation for pulse it says: "The remarks for Wait(Object, Int32) address an issue that arises when Pulse is invoked before Wait." I can't find any reference to this issue anywhere. Can so...more >>

Is there a way to determine if an object has been finalized? I figured you'd ask the GC somehow - but I can't see a method for doing this. Thanks everyone. == Phil ...more >>

Hello all! I have a tricky problem. I have a Windows Service project that is set to autostart at system boot, however when I boot the service fails to start and I get an error in the Event Viewer saying the service failed to start in a timely manner. I did some research and it appears t...more >>

I have this code: typedef KPDCUInt8* KPDCPointer; typedef enum { KPDCRed = 0, // Currently, RGB is all we got. KPDCGreen = 1, KPDCBlue = 2, KPDCMaxNumComponents = 8 // The maximum number of components conceivable. } KPDCColorComponents; typ...more >>

Hi, I have an application that uses BizTalk 2004 orchestration that consumes a web service. I set the web service reference to Dynamic Url because I want different environments where the app will be deployed to point to different urls. However, setting the reference to Dynamic URL seem to...more >>

Hello, I am trying to write a regular expression to parse the string: Database=TestDB;Data Source=server;User Id=guest;Password=; Am doing this to extract the values after the equals sign( =) and before the semicolon(;) and I want the values stored in variables that are before the equals ...more >>

I have a method in a class with [MyAttribute("x")] on it, and the same method with different overloads and [MyAttribute("y")] on it. How can my calling class, via Reflection, pick [MyAttribute("y")] over the first one? Thanks. ...more >>

When the following code is execute and the file already exists, the file is not actually deleted (in file properties - created date does not change) - but only the modified and accessed date changes. No exception is raised. How can I ensure that file is actually deleted? I want to raise cr...more >>

All, Ok I am reading through all this NUnit stuff and using it to unit test .Net applications. My first question which I have not seen an answer to yet is: Are we supposed to put all the NUnit methods in the actual application we are testing or is the theory that your NUnit testing i...more >>

Hello, I want to develop a little application, which extracts some values of an excel sheet and displays this values with a rectangle or a circle in a form. Are there any example how to implement such things? regards mathon ...more >>

Hi I am working on mdi forms. I have a couple of child forms. when I make the FormBorderStyle property of a child form as fixed dialog,the child form becomes movable on the parent form.Is there a way by which I will be able to make the child form fixed as well have the user be able to close ...more >>

I have a customised class which inherited from the ASP.NET webcontrol (e.g. a textbox), now I have add in a few properties into this class, and a few simple script into it. I have build this control, and add it into the Visual Studo.NET IDE toolbox. I am wondering how could I add features l...more >>

Hi, I've got a problem with RegEx in the 2.0 Beta. I have a regexp expression that works fine in the 1.1 version of the framework but breaks in 2.0. I'm no regexp guru, so I don't really know why version 2.0 returns incorrect results. I have this string: value,Var,[L1,L2,[L3,L4]],'Tex...more >>

Hi, I have a small .net app that just generates licenses for my program, nothing fancy, it runs fine from any subdirectory on drive C:, but it doesn't run from a mapped network drive on the same machine, although if I run it on the same where the network drive is installed it runs fine, it fe...more >>

Preparing for a XP migration in about 4 weeks... Problem: In-House Dev App (.Net FW 1.1 - VB.net - Network Share) working OK on W2000.. On test XP test machines the Treeview image not showing... Notes: 1. Running same Network share as W2000 machines.... 2. Using Application.EnableVisualS...more >>

This is a multi-part message in MIME format. ------=_NextPart_000_0048_01C4D866.96D56DD0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Hi, I have been asked to build a Stock Management System in VB.NET windows forms and was wondering if anyone has seen a...more >>

Ive written a scheduled job in c#, which actually runs on some servers, on another its blowing up with a 0xe0434fd. Actually, Im thinking this is a server issues, perhaps permissions - but I dont see any good resources on the web similar to this. Is there a newsgroup for servers? Thanks, Mar...more >>

Hello and Thanks again, Maybe I am not explaining what I am looking for good enough and maybe I should not be using muli-threads at all. What I am after is the following: Form1 instantiates Form2 using SHOW, which is always on top. Form2 is a clipboard, where the user can copy and paste ...more >>

My company has three buildings with a network connecting them between. One of the buildings is outside of the country (in the Dominican Republic). I would like for a program had I have built to be able to communicate with a web service running in one of the other two buildings. I have started ...more >>

Hi, I have an public interface ILocal, and a private class (Local) derived from this interface. The interface have 2 functions (GetValue() and SetValue()). My object must be a singleton! How can i get a pointer to the unique instance of my class!? I can't add a static function in the interfac...more >>

I have developed a managed (VB.NET) usercontrol and have consumed it in VB6 with limited success. I'm not sure I'm going about it the correct way, so I wanted to try to get a consensus from others. Basically I created the usercontrol and exposed it to COM using the standard (I think) methods...more >>

What is the point of lazy * and lazy ? ? "Nothing" will always succeed first, right? If not, can someone give me an example of when either of these might be used? ...more >>

Hi there, How can I make two Serviced Components runnnig in COM+ share another dll? I have two projects, GetData and PlaceOrders, which are Serviced Components. They both the use my Utility dll. When I build GetData into a dll, the Utility dll is also compiled into the GetData\Debug fold...more >>

I was working on a Multi-Threaded app and I noticed something. If i make an app that only uses timers, [(begin/end) send, recv, accept {tcp stuff}] it looks like that application is a mutil-threaded app. BUT. the only thing that goes up is the handles. Yes yes I know, I didnt call th...more >>

Hi- I'm new to .Net, a Delphi developer learning C#. What is the scope of the using statement, or maybe a better question is how do I use it? From the help, it looks like the scope is within a namespace. What I have is a class library with several files. One file is a base class, and t...more >>

Okay, I have this DLL provided by a vendor. I believe that it was written in Visual C++ 6.0 (Visual Studio 6.0). Can I consume it in my app? And if so how. Pointing me to an article or tutorial would be fine. If you need more info, please ask. I'm not sure where to start here....more >>

My SQL Server database is held on a server in the USA. Inside my database table, I have some date values. They are represented in USA format = month/day/year If someone looks at my website in the USA, I want them to see dates represented in USA format. If someone looks at my website in the UK...more >>

I wonder if I could make a windows application which hosts html pages, and instead of the typical .NET controls uses the HTML controls, but at the same time executes commands of the main application from that html page. I actually want to make sth like McAfee 8, which has html pages as its stand...more >>

I have a program where I'm copying a bitmap from the clipboard and displaying it. It seems that after I perform this operation a few times (3-4) even after confirming there is bitmap data on the clipboard {if (iData.GetDataPresent(DataFormats.Bitmap))} when I get the data it returns null. I ...more >>

Hi, I am building a windows service using c#, using the ServiceInstaller and ServiceProcessInstaller classes to install. I would like to be able to have 2 separate installations of this service on the machine (i.e. 2 copies of the same executable, 2 sets of registry entries etc) so obvio...more >>

I have to deploy my VB.NET app to end users. But then I understand that the ..NET framework is required at the user's machine. Is there any option while creating the setup, so that it checks if the machine already has .NET framework....if not, it installs framework first, without user interventio...more >>

I have a .NET web service proxy client that is intended to be invokable from ASP 2.0 (Classic as follows) MyOrg.web.publications.OrderData - Data class that is at the highest level MyOrg.web.publications.iOrderData - Interface for MyOrg.web.publications.OrderData MyOrg.web.publications.Order...more >>

Hi, I need to use an HTTPHandler to create and write files. I wanted to create the file in the directory that has this handler, and other handlers. For me, this directory is: c:\Inetpub\wwwroot\HttpHandlers. I get an error: "Access to the path "C:\Inetpub\wwwroot\HTTPHandlers\bidhero.cc...more >>

Hi, I did install my assembly in the GAC using gacutil /i myAssembly.dll and now I want to remove it when I do gacutil /u myAssembly it failed with this error: Unable to uninstall: assembly is required by one or more applications Pending references: SCHEME: <WINDOWS_INSTALLER...more >>

Hello: I have an application that consists of a UI thread and several worker threads. There is no top-level form that can be counted on as always present. (This is a kiosk application whose user interface consists of a series of independent screens, sort of like a slide show.) However, t...more >>

[Pardon the crossposting, but it seemed appropriate given the lack of a dedicated group] Is there any way to retrieve the name of a capture group from the classes provided in the RegularExpressions namespace? GroupCollection implements ICollection and IEnumerable, not IDictionary, so there ...more >>

I'm not a huge expert on UDP or sockets, so I was hoping someone could help me out. I have a C# app that sends three large (3KB) unicast datagrams out at user- defined intervals (when they push a button) so this can happen every couple seconds or every several minutes. Anyway, every time th...more >>

I wrote a program and it need to set fulltrust permissions in machine for running this applications from share. (.NET Configuration Tool -> Runtime Security Policy -> Machine -> Permissions Stes ->Full trust). Is there any method to use 3th mechanism (like GPO or other 3rd tools) to set it ...more >>

Hello and thank you for your assistance. I have attempted to accomplish what I need using delegates with no success. i.e. //Button Click// Dim PollThread As Threading.Thread PollThread = New Threading.Thread(AddressOf PollThreadAddress) PollThread.Start() End Sub Private Sub PollThread...more >>

This is a multi-part message in MIME format. ------=_NextPart_000_0014_01C4D793.688F90A0 Content-Type: text/plain; charset="windows-1255" Content-Transfer-Encoding: quoted-printable Hi, i know this forum is for dot-net framework, but regular expressions is = part of the framework, so i...more >>

I'm running the .net framework 1.1 sp1 on a windows 2000 server sp4. We are running a Plumtree Portal (.net version) on this machine. If the machine is not rebooted every couple of weeks or if a group of 25 or so users try to log on to the website at the same time, they periodically receive ...more >>

I receive from a pop server messages with encoding title. How can I decode this title which is encoded into 8859-1 ? Olivier Blondin. oblondin.ext@rd.francetelecom.com...more >>