I programed in vb 6.0 i need to swith .NET what .net i start to learn? Thanksany one. ...more >>

Hi. I'm trying to develop a custom data provider and would like to add designer support. Specifically for the CommandText property I would like to set the property editor that all other providers have (the Query builder). Is this Editor available in the ComponentModel library or in any other lib...more >>

Hi, I need to perform some Operations in DEBUG-Builds (C# Windows-Forms application). How can I detect a DEBUG-Configuration and perform actions as with the C++ directives #ifdef _DEBUG .... #else .... #endif Thanks for any hint! Harald ...more >>

I have a DisplayValueItem object that is used to fill a ComboListBox with items. It used to be the Value and Display members were string. I changed it to a generic (T, string) and now the below code fails. x = new DisplayValueItem < int >(1, "stuff"); clbOutcomes.Items.Add(x); bFound = clbO...more >>

Hello ... Is there an easy/quick - or at least reasonable - way to programmatically identify a .NET assembly (EXE or DLL). My app needs to look in a set of folders and find which files are .NET assemblies. Some of the folders contain many files (>100) with 1 or 2 assemblies among them. I...more >>

Dumb Question Warning: How does one know what the eventhandler arguments are for a particular event? They aren't always Handler(object sender, EventArgs e). Some events have event specific EventArg classes, if the .NET sdk doesn't have a specific definition of a delegate for a particular ev...more >>

Pardon Noob questions... Why would somebody create a component using vs.net 2.0 and C# ? To use it from non .net solutions or unmanged code? dumb question, I'm finding these instructions for compiling c# into a component dll from the command line.. csc /r: REFRENCE DLL /t library /out ...more >>

I am trying to open windows explorer at a specific path on a server. Path is not found whe run. It works ok using a local path. How do i address a server? Code as follows; { System.Diagnostics.ProcessStartInfo exploreTest = new System.Diagnostics.ProcessStartInfo...more >>

The problem that I am having is that I need to view an image, in a VB dotnet application, that has been scanned using the "Image Everywhere Scan 3.02" scanning software and is saved as a multi-image TIFF file. I have tried using TIFF Viewers with no luck. Does anyone have any experience openin...more >>

Hi, I'm currently writing windows .net service (non-interactive) that shall start a specific program from disk the moment it gets started itself. Now, when I simply call Process.Start(filename) I receive an AccessDenied error. So, how can I start a process with the same rights as the service...more >>

I seem to remember this being possible, but I can't find a single thing about it now.. I have a datagridview that is bound to a bindinglist of type 'foo'. Foo is a business object with a number of public attributes. I want to prevent the datagridview from binding to some of these public...more >>

Hi I have a windows program (C#) and I need to end a process from my application. This shold work equal to when you open the Windows Task Manager and right klick on a process and choose "end process". Any ideas? Thanks Julia...more >>

Will the framework version 3.0 be shipped with Vista? ...more >>

Installed a new video card and it works great for the games and such. But when I put a dvd in the drive, player loads than freezes. This also happens with power dvd player. Any ideas, thanks...more >>

Hello, I'm trying to do some simple calculations with System.Data.SqlDecimal on ..NET 2.0: SqlDecimal one = new SqlDecimal(1); SqlDecimal seven = new SqlDecimal(7); SqlDecimal oneBySeven = SqlDecimal.Divide(one, seven); The precision of the result in oneBySeven is way below my expectati...more >>

Hi, I've a string that contains a Xsl transformation : string tranform = @" <xml version=""1.0""> <xsl .....> "; Notice that the first chars are \r\n I write this string into a MemoryStream, then I create a new XmlReader like this : XmlReader reader = XmlReader.Create(myMemoryStr...more >>

Am using VB in VS.NET 2003 (Framework 1.1) I am getting a CLR debugging services "application has generated an exception that could not be handled" error after deploying the apps and trying to run it on the client PC (XP Pro SP2 with .NET framework 1.1 sp1). My application does not load. Th...more >>

Hello there, I'm using the GetPortNames to list the available Ports in a ComboBox. This is working fine. But I want to show the end user not only boring 'COM1' to 'COMx'. Instead this I want to show the friendly Names like the Device Manager shows, e.g. 'Prolific USB-to-Serial Comm Port (CO...more >>

I have run into some issues with COM objects in an application I am working on, and am hoping for some help. The app I am working on is in ..NET 2.0, and I am trying to use a COM object written in FoxPro, which will perform operations & write the transaction to a SQL database. (Yes, i realize t...more >>

Hi I have two versions of a project placed under: wwwroot\Version1\webapp wwwroot\Version2\webapp If in VS2005 I choose Open Web Site and open the Verson1 site, then VS2005 somehow figure out that it has to open the .sln file placed under: C:\Documents and Settings\...\My Documents\Vi...more >>

I need to present a list of assemblies as potential references, similar to (but less sophisticated than) the Visual Studio project references dialog. The reason for this is that my app supports scripting by dynamically compiling VB.NET code (via CodeDom.Compiler), and I want to provide for th...more >>

I searched using Google, on the web and in the newsgroups, and found nothing on this topic. Hopefully that means I just don't understand what I'm supposed to be doing here. :) The problem: I am trying to use the SaveFileDialog class to get a filename, which is subsequently opened for w...more >>

I have a DLL that I created in VB.NET. I haven't had a problem referencing it in the past, but now I suddenly do. I re-build it and then reference it from my application, but when I type Imports to import it, the intellisense doesn not include it. If I type the name of the DLL, it complains th...more >>

Does anyone know where I can find statistical info regarding market share of ..NET? More specifically, current usage of various versions of .NET and how long companies wait before upgrading and migrating. I'm trying to begin an effort to start migrating to .NET 3.0. One argument I've heard ...more >>

I have a AppDomain ID, how do I get the instance of the AppDomain Object? Please advice. Thanks in advance. John ...more >>

I am getting an OutOfMemory exception within my loop when I try to load an object and then save the object. The loop should execute 5700 times. But when I get to iteration 4682, I get the memory error. I tried to run the garbage collect when I get the memory error but this does not have any...more >>

I've got a Web app wherein I store a number of generic collections (Generic.List) in the application-scope as a HashTable (a make-shift cache), indexed by an Enum value - i.e., CType(Application.Item("SysTables"), HashTable).Add(DataAttribute.Database.Recruiting, TableList). The Enum values ar...more >>

Hello! We here at the office have discovered something odd. Can somebody please verify this potential bug for us? This code generates a byte buffer fills it with 256 bytes ranging from 0 to 255, and the bug appers when the Unicode Encoder gets the bytes from another Unicode Encoder that giv...more >>

I'm having a hard time comparing two strings - even if the strings are identical, the If x <> y Then condition is always met. I'm going crazy. Here's my code: Dim x As String = "a" Dim y As String = "a" If x <> y Then ' it always goes here End If I also tried: If Not (x = y) Then ...more >>

Did anybody try to make a performance comparison between .net 1.1 and 2.0 in real applications ? I mean not just small tests like Generics vs. Collections or DataSets, but the performance of the whole application using those things ? We experienced with the performance drop after moving to the...more >>

Hi! I would like a suggestion about a graphic provider for Charts plotting in VBNET. I need to plot charts with more elegant graphic interface than VBNET default one; I also need to interact with the charts I will realize, i.e. plot datas and retrieve informations about pixels or cursors posi...more >>

Can anyone tell me if the dot net 2 framework ships with embeded crystal reports runtime files. I know that Vs.net does but I'm not sure if the framework has anything embeded which may interfere with the actual crystal installation Charlie ...more >>

Hi Guys. I am loading an enumerator in a list box using reflection. Using if (!this.IsPostBack) { ddlSource.Items.Clear(); Type _enum = typeof(adTargetDataSource); FieldInfo[] _prop = _enum.GetFields(); // We start at ...more >>

hi, I have a problem when trying to delete a file. I have to extract some information from a file, and then I have to delete it. When I try to delete it after I read it, I get a "Access denied" error. help pls, Neven ******************************** StreamReader sr = new StreamReader(s...more >>

Hi, I just encourntered the following problem. I have a Solution with one WindowsForms startupprojekt and two class library projects a and b. Now when compiling a seperately everthing is fine. Also when I compile the Startup project seperately it's ok. Only if I select Build solution I got ...more >>

I'm not sure if I'm having a moment of non-clarity or not but I don't believe implementing ISerialization works at all. It started when I had a class that I wanted to provide my own serialization for because it had ReadOnly properties. So I implemented the ISerializable interface. I throug...more >>

Just as an exercise I'm trying to write a program that will periodically read a Web page (not mine), get some information from it, and store the information. It seemed the most straightforward tactic was to write a service and have that service use an instance of WebBrowser. The problem ...more >>

How do I debug an XLST transformation? -- Arne Garvander (I program VB.Net for fun and C# to get paid.)...more >>

Hello, I want to execute a delegate (event) in tha base class from a derived class but i get comile time error. Is there a work arround? base class : public abstract class Document { public event EventHandler OnDataChanged; public virtual void SetData(string ...more >>

Hi there, I've got this strange problem. I've created a library of some assemblies and one of these (webclient.dll) is linked inside an html tag object by using this sintax: <OBJECT id="myID" classid="http:WebClient.dll#namespace.WebClientClass" /> The assembly is correctly loaded insid...more >>

Hi I use VS.NET 2005. I generated a Proxy file (reference.vb) with the build in WSDL Generator -> so far so good. I have to provide some classes from that to COM via the interop-layer -> okay. There are some (data)classes with members declared as System.Nullable(Of Long). The problem is ...more >>

Hi all... If you have the skills and experience mentioned below and u are interested in working with Cognizant Technology Solutions, please send your updated resume mentioning any of these specializations and location preference in the subject line.........to .. rohit.katiyar@gmail.com Ja...more >>

I have a number of questions regarding the DefaultValueAttribute which is not explained in the rather terse MSDN documentation for it: 1) Should I use it for all properties, even when the property is initialized to its equivalent 0 value and I do not specifically initialized in the construc...more >>

Thanks ...more >>

Hi Guys! Im new to C#. How can I create a Bitmap of the Web Browser Control using the CreateGraphics Method? Thanks! Matt...more >>

I'm left a little confused about the correct way to handle exceptions thrown from unmanaged code. Specifically, I've got a legacy MFC based DLL that's wrapped by C++/clr exposing it to a fairly straight forward C# console app (VisualStudio 2005 if that matters). According to a fairly bri...more >>

Hi All, My application was working fine and giving me proper trace messages, but now all of sudden it started showing expcetion as "Object reference not set to an instance of an object. Description: An unhandled exception occurred during the execution of the current web request. Please re...more >>

Hi I have a scenario where the user can change his password at Active Directory. However the password must not be passes in cleartext over the network. I am using DirectoryEntry.Invoke("ChangePassword",oldPassword, newPassword) to change the password. If I use AuthenticationTypes.Secure whil...more >>

How can I mute the PC's sound from a C# program (just as I would from the volume control in the systray)? Olav ...more >>

I have an object in a service that, of course, is derived from MarshalByRefObj and is setup as a wellknown type in my app.config file. I can get a reference to this object just fine and call functions. One of my functions needs to return another object that also derives from MarshalByRefOb...more >>

Hi, I created a class that can serialize and deserialize itself dynamically. Please see the example class below. I can call the class to serialise and deserialise as follows: Dim objPerson As New Person objPerson.FamilyName = "Smith" objPerson.FirstName = "John"...more >>

If I am woring with Generics I can do default(T) to find the default value, but I can't do default(this.myobj.GetType()). How do I find the default value? I >>> DO NOT <<< want to do something like the following... public object GetDefaultValue( object o ) { if ( o.GetType() == ...more >>

I have a simple unsigned .exe (only calls Microsoft assembly) built by vs2005 (e.g., .NET 2.0) and now want to execute it on .NET1.1. The following is my entire config file: <configuration> <startup> <supportedRuntime version="v1.1.4322"/> <supportedRuntime version="v2.0.5072...more >>

We have a requirement to implement multithreaded processing for a function. ThreadPool is used to implement multithreading in order to avoid the over head of creating and destroying Threads dynamically. A function will Queues the method calls to the default ThreadPool. If the number of method...more >>

I was looking for managed classes that exposed shared memory figuring they would be part of the framework in 2.0. I couldn't find any. Am I just not looking in the correct place or is shared memory support still not in the product? By the way, when I was searching the .NET 2.0 SDK documen...more >>

I want to make a program that can receive wave sound stream from microphone and play it real-time. Is there a way to do that? Thanks. ...more >>

Hi, is any possibility how to use an old DLL library (created in Visual C++6) also in .NET 2005, in C# or in C++ application? How ? Tutotials needed .-) ...more >>