Hi, I am trying to control the Cursor Keys(Left, Right, Up, Down) in a Windows Form Application from the KeyPress Event. Can someone give me some help how do I identify which key was pressed. Thanks in Advance...more >>

Hi, Human Software Websphere Development Network, is a community of teleworkers connected to our company. Main goal is to develop software solutions (websites, .Net, VB, Java, Portal, WSE, and so on) to our customer or other Business Partners. HSDN Workflow is summarized as follow : ...more >>

I have a class which is serialized and stored in a file stream. Later I changed the class with adding some fields to it. Now when I deserialize (I am deserializing from a later version of my Application) the file framework throws an exception stating that “Possible Version mismatch. Type [...more >>

I have code which creates a DataAdapter, and upddate command etc, and then finally does and update which fails. The error message which is returned is "Object Reference not set to an instance of an object." The update SQL is "Update Leads set Company_Name = ? where LeadId = ?" If I change...more >>

I could not find Oracle .NET data provider for version 1.1. Do I have to use ODBC .NET data provider for instead? Which provider can offer best access to Oracle Database? I'm using Oracle 8i. Thanks for any kind response. ...more >>

I'm trying to read an excell file in my .Net application using Office XP Primary Interop Assemblies (http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnoxpta/html/odc_oxppias.asp). I have installed Office 2003 on my developemnt box.Will my application be able to read all kind...more >>

Hi, I am writing a webpage in C#. Visual Studio .NET. the following code does not provide me with intellisence on the context, session, and page.cache. When I put the large if...then statment from the GetJSHyperlinksString() function into the private void on page load event the intell...more >>

vb6 language: dr is a datareport. -------------------------------------------------------------------- With dr .Sections("Section4").Controls("titolo").Caption = "Attività" -------------------------------------------------------------------- can somebody show me how can I write...more >>

Hi all I want to update a remote db on my site. but I don't want to connect to db directly.. How can I do that?? thx ...more >>

Hi, Building the following code namespace DelegateAnonymousToMap { class Program { class MyClass { } static void Main(string[] args) { System.Collections.Hashtable hash = new System.Collections.Hashtable(); hash.Add(1, delegate() {...more >>

I run the following code: Control control = pluginInstance.Control; Console.WriteLine("type is "+control.GetType()); NewControl castControl = (NewControl)control; The Console has "type is MyNamespace.NewControl" written to it. However the third line of code throws a "Specified case is not ...more >>

Hi, I have been unable to resolve this error message: Object Ref not set to an instance of an object. The issue is that I cannot determine which object reference is causing the problem. The line of user code that gives the error message is: return oDataSet.DataAdapter.Update(oDataSet...more >>

Hi, I have eleven C# applications running on eleven different computers sending packets to a MSMQ MultiCast configured queue (same address for all). Those eleven senders also act as receivers. Do all receivers receive the sent packets in the same order? Thanks Eric...more >>

thanks, Nicholas and cody. but as far as i know, the following directive " #pragma pack(push,4)" will ensure that: when the data are transferred through networks to other platforms, the const value "STATE_NULL" will still be regarded as a 4-byte value in the stack, namely 0x0000. I dont know ...more >>

Hi, I've written a custom user control, say, MyControl that's being derived from System.Windows.Forms.UserControl. The problem is that I need the control to be fixed size; i.e., I donot want the control to be resized either in design mode, or run-time. How can I do that? Any help would be hig...more >>

hi, I'm currently working on a project that reads frames out of a video file, processes them and saves them to an AVI-file. For extracting the frames from the source file I use the AviFileWrapper by Corinna John. So I read the images frame by frame, process them and would like to save them....more >>

Hi, I am evaluating various alternatives of converting Delphi (Ver 4.0) screens to C# screens. Are there any tools available for such conversion? if yes how much conversion do they achieve? The number of screens to be converted are huge, we are aiming minimum regression impact. What cou...more >>

Hi there. I wonder how a singleton could be (auto)disposed. For instance : class Foo : IDisposable { private static readonly _instance = new Foo(); private Foo() { // opens a file or does anything that needs cleanup } public void Dispose() { } public static Foo...more >>

Hi, What is the right way to create an OCX COM component. The component is already registerred, but can't create an instance. I am using the reference to the interop module created. If I use javascript or vbscript it works. I will appreciate any help. I do the following (C#): Attempt ...more >>

Hi, I m working on a windows application using c#.NET. Using borderless non-rectangular forms. Can anybody tell me how to minimize / restore that application from taskbar. (I m already using Notify Icon ) but also want the functionality from taskbar. Thanks, Nikki ...more >>

Hi there, can someone tell me what exactly a "property" is in a C# class? As far as I can see it is "two methods" - ie a getter and a setter for an instance variable. What is the difference between these: public string InstanceStringVariable() { get { return _instanceStringVariabl...more >>

Hi, How can I convert a string type to a number, f.example an Interger? Thanks Martin ...more >>

I would like to insert some text with embedded carriage return/line feed into a MS Access text field with OleDb and C# ADO.NET. I tried to use "\n" in combination with "\r". If I display the input in a text field I only see quads. Tia Torsten ...more >>

I'd prefer to use C-Style #include directives to conditionally compile classes in c#. The code should look like #if (TEST) #include <..\inc\this.cs> #else #include <..\inc\that_one.cs> #endif Any hints warmly welcome. Regards MAx ...more >>

Hi guys, I have gone through google and tried different ideas for the past 4 hours now and am getting nowhere. I currently have a class that raises an event, from this event I want to add a value to a listbox on form1. However I cannot access the listbox on form1. I need to make a refer...more >>

I have a string like string sNo. I want to cast it to int with int.Parse(sNo) but if the string is null or empty, it will thow exception. I must check if sNo is not null and is not empty before cast like: if ((sNo<>null) && (sNo<>"")) Have there any function to check the null and "" at o...more >>

Hello, I am using Windows Server 2003 Enterprise Edition for deploying ASP.NET application. I also have a SharePoint Server running on that machine. When I deploy the web site and try to access it , I getting '404 Not Found' Error. Can any help me please to solve ...more >>

It's possible to cause a WinForm window's message queue to process messages after it's processed WM_CLOSE, by using Invoke/BeginInvoke in a worker thread (meaning that complex work-arounds are required to make code that calls Invoke/BeginInvoke in a background thread thread-safe -- and which ...more >>

Hi Friends, When I am browse http://localhost/ReportServer/Pages/ReportViewer.aspx , I get this type of error below. Reporting Services Error -------------------------------------------------------------------------------- An internal error occurred on the report server. See the error l...more >>