Hi all I am having problem in dot net application. I am getting lots of errors while running this application. But no exact sceanario is found. First error i am getting is 'error in creating window handle'. Which is occuring if i run application continuously for nearly 30 minutes or for 1 hour...more >>

HI, I am a C#.NET Developer. I created a windows application which is taking too much memory. But my code is calling dispose methods of all objects and assigning null them. I don't know why is it happening After that i tried the GC methods it worked for me in the first instance but from the n...more >>

Hello, How does one use the IUniformResourceLocator interface from C# in order to get the URL that an internet shortcut points to? Is there a specific reference I should add to my project? Thank you very much, Rich ...more >>

How can I set class name for my form in .Net? For example, my app main form has class name like WindowsForms10.Window.8.app3 is it possible to change it? Tx Alex ...more >>

If I call Control.Invoke on a worker thread, which thread gets blocked: the worker thread or the main (GUI) thread?...more >>

I upgraded the MDAC to 2.8 on a server/system that has been in operation for several months, but now get the following error: Dynamic SQL generation for the UpdateCommand is not supported against a SelectCommand that does not return any key column information. Has anyone else experienc...more >>

Hi everyone, I have a .Net dll that instantiates other .Net dll's and win32 dll's, through LoadLibrary and System.Reflection.Assembly namespace. That's working fine. I need .Net dll (caller) to wait till the end of the called function / method ends processing (something like making called DLL...more >>

BASED ON CREATING INSTALLATIONS FOR AROUND THE WORLD: What is the difference between different versions (english,german,etc) of the v1.1 framwork resdistributable? When creating an installation for your application, where you want to pre-install the framework, does it matter which version yo...more >>

Hi, I need to know if the framework was installed in the computer and after that checking the version of it to be sure that I can use my .net application on the machine. thanks for your help ! JULIEN. ...more >>

I hope someone can help. I have an application whose purpose is to suck files into memory and read through them. These files can't be read sequentially. This has worked like a charm for over a year... file sizes are anywhere from a few hundred bytes to 50 MB. Well, now i have to suck...more >>

Hi; In the windows API you could call PostMessage() to yourself (the window you are in). Is there an equivilent in .NET so I can cause an event in my form to trigger after all events presently in the queue complete? -- thanks - dave...more >>

Hi; This is driving me nuts because it should work. In my AssemblyInfo.cs I have: [assembly:CLSCompliant(false)] [assembly:ComVisible(false)] [assembly:IsolatedStorageFilePermission(SecurityAction.RequestMinimum, UserQuota=1048576)] [assembly:SecurityPermission(SecurityAction.RequestMinimum...more >>

Using the Process class I need to pass some parameters to the .vbs file i am Starting Code so far Dim ShellProcess as new Process ShellProcess.StartInfo.FileName = strVBS ShellProcess.StartInfo.UseShellExecute = True ShellProcess.Start() how do I pass parameters to the Start method? ...more >>

Hi, I need some article about performing pre-batch compilation. Can any help with this topic and find this articles? Tia Julio ...more >>

Hi all, I am building a VB.Net app on Framework 1.1 using VS.Net 2003. I have a special logging *singleton* class that needs to do work once every object in my application has either finalized or been disposed of. The way I have been doing it is by 1) removing my logging class from t...more >>

Hi all, I am building a VB.Net app on Framework 1.1 using VS.Net 2003. I have a special logging *singleton* class that needs to do work once every object in my application has either finalized or been disposed of. The way I have been doing it is by 1) removing my logging class from t...more >>

I have some classes that have the <Serializable()> attribute applied, which of course by default serializes the class properties as elements. What I would like to do is to be able to override this behavior at runtime to serialize the properties as attributes. I have been exploring the XMLA...more >>

Hi, What is ASp mail component? where can i find more info abt it? Is it a freeware or do i need buy it? ...more >>

I just found that program entry point static void Main() does not need to be public! Is that an violation of language infrastructure and runtime security?...more >>

Hello, I have a dotnet dll file. This dll is to use MS Project by VB. When I am launching my application from a local drive (c:\mylocapp) : no problem The Problem is when I am trying to launch my application from a network drive : my "W:" is "\\Server\Testappli" I am using this co...more >>

Hi, I am using the MemoryStream class with the member function, Write( ). I found that the 2 parameter, which supposed to control the offset of the destination cannot be zero. As long as it is non zero, like 1, 2 or 3, it will be catch. Please advise. ...more >>

Hi, I'm trying to create an application that's, in normal use, nothing but a simple console application (a server), but can install a service if certain arguments are passed through. (compare with, for instance, mysqld and mysqld --install). Is this possible using .net? Thanks, Brecht...more >>

Hello, With Steve Jobs recently confirming the Apples move away from the IBM Power PC chipsets and over to Intel, Im wondering what, if anything, will this mean for the .NET framework and a potential Mac based CLR? On the face of it Im thinking this means very little. With the CLR essential...more >>

Hello, I'm writing a security related application in .NET 1.1 and I wonder how I compute hashes from very large files (up to 1 GB). Does anybody know a good pattern of how to create a stream from a binary file and compute the hash of it? I appriciate your comments. Thanks in advance,...more >>

This question is about serialization of .NET. Why a class to be serialized should be defined with [Serializable] attribute? Is it just a security concern so that a run-time system(CLI) knows that the class shouldn’t be serialized? Or is there any other reason like a class without [Serializa...more >>

Hi, How can I populate a DataReader without connection or command? or Hpw can I store a lot of data in a better way? I don't have all the data at once. Thank you, Roby Eisenbraun Martins...more >>

Hi, I have a DataTable that has a Color type DataColumn. I use OleDbDataAdapter.Update(myTable) to update the db. Is there a place(an event?) where i can do a type conversion from Color to string (or int) so that the value can be saved in the db? What is the preferred way of saving/reading ...more >>

I am creating an ASP=2ENET Web Application, but I am not using file= share, I want to use FrontPage extensions=2E MS Devel Environ wont= let me set up the project because "the project folder can't be= opened with FrontPage=2E" I have tried reinstalling FrontPage= Extensions and got an error ...more >>

Hi Has anyone encountered the following situation (I cant believe I am the first.) As part of a system I am designing I require a collection class that populates itself. So far I have a design along the following lines. public interface IFactory { IItem NewItem(); IItem[] NewItem(...more >>

I have just installed the Beta of the .Net framework version 2 on a test machine here and it does not install the mscorcfg.msc file anymore - where has this gone? -- Chris Holland...more >>

hi, I am creating a dbconcurrencyexception in my program. Update fails with 0 rows affected message. Because I changed the data in DB from SQL server front-end after my grid fills with data. i followed the example in msdn. in the handler, after prompting the user, i read the record from the D...more >>

Hi, I'd like to do be able to implement an interface in a derived class by relying on the base class for some of the members. For example like this: Interface ITest Property prpA() As Integer Property prpB() As Integer End Interface Public MustInherit Class BaseClass Publ...more >>

Hi, I have a TCP server running on my desktop. While another TCP client running on my laptop. Both written in raw C/C++ and they work perfectly fine. Now I am developing socket application using C# on the same laptop as TCP client. It basically connect to the server, send a packet and r...more >>

Hi, I am a bit shocked that C# got nothing to do with C/C++. Here is what I wanted to do; Int32 f_nSomeValue = 200; // Supposed to be 4 bytes long in length, right? MemoryStream f_MemoryStream = new MemoryStream(20); f_MemoryStream.Write(&f_nSomeValue, 0 , 4); The first param of t...more >>

is it legal to develop commercial application with VC# express? ...more >>

Hi, As the title indicated, does anyone know the answer? ...more >>

Now I have a regular expression: string pattern = @"[\s\S]*?(?<content>\<div id='news'\>\<div[\s\S]*?\<\/div\>[\s\S]*?\<\/div\>)[\s\S]*"; I want to use this pattern to match a html file's content,and replace the file's content with ${news}. But if the content is not match the pattern ,the progr...more >>

Hi, I am very new to C#? How could I do a simple memcpy (in C/C++) in C#? Example; I have a Byte[] Data = new Byte[500]; And I want to copy various things like int32, other bytes etc into various section of the Data[]. How do I do that? With C/C++ is rather simple, which is memcpy( ). ...more >>

How can I send an email and include BOTH html and text format? Yes, I already know this is supported in framework 2.0...but how can I do it in 1.1? amil ...more >>

Hi, Do you know how the method FileStream.Read populate the Char array if we don't use out or ref? Thank you, Roby Eisenbraun Martins ...more >>

Hi, Which one is the fast way to open a file and read it. If possible without buffers and any other kind of conversion. I need one step from the harddisk to the Array. Right now I am using FileStream. Is this the best way? Thank you, Roby Eisenbraun Martins...more >>

I want to disable a form after opening a new one in front of it and i use the enable property for this as Form4 newForm = new Form4(); newForm.Show(); this.Enabled = false; But how can I enable the the previous form over the new form after the job is finished with the new form tha...more >>

hi, I'm creating a component to read text files. I'm using TextReader with Encoding Text component, because there are several different types of text files and the encoding component translates the bytes from this file to the correct characters. To which one of this text fil...more >>

Hi Everyone: I am writing a Pocket PC applicatrion using VB .net 2003. I need to connect to a remote SQL server database and load records in DataGrid. Any help in doing so would be very helpfull. I try ; Imports System.Data.SqlClient Dim connection As New SqlConne...more >>

Hi I have forty clients applications in different places of the city, they connect to a DB via Internet, until now the clients report information and receive information only when they read the DB.(half duplex) Now I need to be able to send information from the server to the clients usi...more >>

All, I am playing with WinDBG and SOS. If I run !FinalizeQueue I get SyncBlock to be cleaned up: 0 ---------------------------------- generation 0 has 6 finalizable objects (0x0015a370->0x0015a388) generation 1 has 0 finalizable objects (0x0015a370->0x0015a370) generation 2 has 0 f...more >>

I have a routine that imports a list of part numbers into a dataview: strExcel = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & boxFile.Text & ";Extended Properties=""Excel 8.0;HDR=NO""" cnnExcel = New OleDbConnection(strExcel) da = New OleDbDataAdapter("Select * from [ODRJYUFI...more >>

Given a System.Type, I would like to detect whether the method object.GetHashCode() has been overriden or not ? How can I achieve that with reflexion? I have read the MethodBase documentation, but I do not see any solution for now. Thanks in advance, Joannès http://www.vermorel.com ...more >>

I have an application that works correctly in debug mode but it does not work in release. I am not using anything of the class system.diagnostics. I tried to disable the optimization code, but this did not work please I need a solution quickly!!. Thanks....more >>

I have several TextBoxs in a datalist control and am allowing a user to make changes to them. Everything works fine but when I execue the update command for the datalist and use the FindControl method to read the value of the text box the changes made by the user are lost and the value is what ...more >>

I have written a Windows Service which enumerates the files in a directory. I am trying the enumerate the files of a mapped drive.It works fine on a windows 2000 Box.But the same ,does'nt work on a xp or a 2003 machine. Any Ideas why it would do that??? Thanks MVB ...more >>

ow resolve this http://www.tech-archive.net/Archive/DotNet/microsoft.public.dotnet.framework.interop/2004-06/0294.html i put [STAThreadAttribute()] or [STAThread()] int he main() but don't work.... thank...more >>

Hi, I would like to know which one of the following parameter types is faster. I think is ref because sending a pointer to a class seems to be much more faster then copy all the class at once in the method call. But when I was having classes about C# programming in Microsoft Of...more >>

article 829977 - A memory leak condition occurs when you run COM+ 1.0 on a computer that is running Windows 2000 SP4 When trying to run the hotfix for this on windows 2000 server, I'm having a problem. It doesn't run on windows 2000. Do you have a solution for this problem? - EJ...more >>

I am using Microsoft.VisualBasic.Strings.InStr() and Microsoft.VisualBasic.Strings.Mid() to manipulate strings. Is there a better way ? i.e. by using the framework. Thanks, Craig ...more >>

Given a PropertyInfo object, how can I determine if the property that it describes is a static or instance property? The same question applies to EventInfo. MethodInfo, ConstructorInfo and FieldInfo all have an IsStatic member, but PropertyInfo and EventInfo do not have this member, which s...more >>

Hi, I'm trying to launch an instance of explorer from windows that will default to the "My Computer" branch. Any suggestions? I've tried: string myComp = Environment.SpecialFolder.MyComputer.ToString(); System.Diagnostics.Process.Start(myComp); which fails, is there a special folder that i c...more >>

I have an application that accepts plugins. It allows the user to choose which plugins they want to run from a list of available plugins. My problem is that I need to build that list of plugins by checking the assemblies in the plugins folder to see if they implement the plugin interface. I...more >>

Hi, I'm using the .NET environment, writing in C#. I have a windows form application which is causing me a headache. I have a main form and also a subform, when I close the subform, the main form also closes, which obviously terminates the application. I've checked my dialog result from ...more >>

Hi Guys, Has anyone written a windows service in C# that used multiple threads, then wrote a VB 6 application that called the various methods on the C# Service? Any problems with it? Thanks...more >>

Hi, I am having a problem with a vb.net mappoint application. Currently in my application I have pushpins that move according to GPS locations that are constantly being updated. Everything seems to work fine but when I start using the toolbar functions in the mappoint object while tracki...more >>

I got a Server Class in an executable and I would like to change this in a windows service. The code from the main function of the executable is the following: LoadReportingServer server = new LoadReportingServer (); server->Start (); Console::WriteLine (S"Press ENTER to stop the server.....more >>

Can I install the 1.1 framework with the 2.0 framework on the same server and run VS2003 and VS2005 at the same time? I installed 2.0 on a workstation and it looks like the 1.1 framework stayed put. If anyone can clarify this it would be greatly appreciated. Thanks all, Andy ...more >>

Hi, Sorry if this question sound stupid, how do I actually convert a char[] buffer into Image? I am currently using C# and compact .net framework for PocketPC development. Thanks for reading. ...more >>

Hi, I need to be able to create one or more form(s) from a method that is called from different threads. When this form is created, it appears but it does not receive any message. It looks blank, and when you move your cursor over it, it becomes an hourglass. Can anyone help me with this...more >>

Hi, How can I stop my Windows Service Application. I looked for something like me.close but found nothing equivalent. Thanks, Tony ...more >>

What will be a good tool to analyze file differences...more >>

I have a fairly simple Windows Forms application developed using C#. It basically listens to two serial ports and displays the results. There are three threads that each listen to a network socket. Additionally there is the GUI thread, the two serial threads, and some threads to process the ...more >>

Hi I have a problem on how to span a transaction over multiple business classes without using COM+ Example: A existing person get an MailingAddress assigned to public class PersonService { public void InsertMailingAddress(data) { //ask the AddressService to insert ...more >>

I get the following Log in EventLog on attempting to use a custom action to write to a config file in the to be installed application after a call to the base Install method. The description for Event ID ( 11001 ) in Source ( MsiInstaller ) cannot be found. The local computer may not have t...more >>

I have a deployment project where I collect the paths to 4 user defined directories using user interface textboxes that are then mapped to folders in the file system editor that are always created. This all works fine. What I want to do is update the config file for the application so that i...more >>

Hi Can anyone tell me what version of mscorlib is shipped with the .net framework 2 beta 2? On my machine it is 2.0.0.0 and on a colleagues machine it is 2.0.3600.0. Which is the correct version? I am havineg problems loading .net 1.1 assemblies when I have the .net2 framework installe...more >>

Hi Can someone give me guidance on the following scenario? I have a windows service application that kicks off a job that perform complex processing and call a stored procedure that run for +- 45 minutes. I need a mechanism to notify the service to throw an exception when the database connect...more >>