The basic idea: I've got a form in which I draw a bitmap, scaled to fit the form. For obvious reasons, I want to cache the scaled version of the bitmap so that repainting the form is faster. I need to update the cache any time the form size is changed. But I don't want to generate the ...more >>

I have .NET 2.0 on a VISTA machine and am trying to install .NET 1.1 It is failing with the following error in Events Viewer: Source: MsiInstaller Event ID: 1030 Description: Product: Microsoft .NET Framework 1.1. The application tried to install a more recent version of the p...more >>

Hi all... :) I'm in the process of coding up some "high-speed" asynchronous server. The server must handle many simultaneous connections. The amount of data to be transported on each connection is not very big, typically 1000 bytes, but the server must process the data using the fastest tec...more >>

Where should I ask this question? I'm new to VS2005. When trying to publish a program I get the following error. I downloaded and copied the DLL into the relevant directory, so I assume I don't have the necessary permissions. What can I do next? TIA David McCallum Error 2 SignTool...more >>

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Hello, friends, I am using BackgroundWorker() to import files into viewer while users are working with our app. However, this backgroud file importing made the app much slower. For instance, it took about 5 seconds for the app window to refresh. Moreover, most of the time, the mouse poi...more >>

Hi, I have a Sony Mini DV DCR-HC44 video camera. Worked fine with XP using a Firewire to upload my video. Since installing Windows Vista will not work. Have used MM to acquire capture but says can not find camera, firewire card all installed and said to be working fine. Did once get the ...more >>

I ran into a serious problem and couldn't find any help on the web: I want to XML serialize several objects and send them over a NetworkStream. The serialization for a single objects works fine and the client can deserialize it without any problems but as soon as there is more than one object ...more >>

Hi, I am having vb2003-net 1.1 Code was working fine yesterday, today getting error ----------------------------------------------------------- error: An unhandled exception of type 'System.Data.SqlClient.SqlException' occurred in system.data.dll Additional information: System error. -----...more >>

Hi, I have a problem google or these groups has not yet been able to provide an answer for, I could be missing something obvious. But I certainly hope not. I want to monitor all printer queues on the computer - and get a notification when something changes (i.e. a new job is added or such)....more >>

Hi, I have a new laptop with windows vista. I have the admin account setup. However, when go to control panel/add or remove user accounts and click on it does not work. The clock flashes quickly like it is going to do something but nothing happens. I can change account picture, password, ...more >>

hi, I've a byte value of 15... i wan to get it's representation a follows 0x01 | 0x02|0x03|0x04 basically i want to know by OR ing which numbers,..am I getting a value of 15... help me out.....more >>

i've used .net 2.0 datagrid view control/.. i want to show a dropdowm menu whenever i doubleclick a row on my grid.. how do I achieve it...any good samples...more >>

I'm a newbie to xml concepts.. my requirement is to read a very big xml file and pick up few slected nodes and build List array out of it..... how to I acheive it with minimal coding? which xml class supports this.. any good samples? please help out...more >>

Hi When I want to update a record folowing exception has been appeared: Concurrency violation: the UpdateCommand affected 0 of the expected 1 records Can anyone help me about the cause of the exception? regards Mehdi...more >>

Ok I'm sure there are a lot of people in my position. I am a professional developer and have a situation of information overload here. Microsoft is pushing out stuff so fast these days that's its IMPOSSIBLE to keep up with even 1/2 of the technology. I get really frustrated and start reading a...more >>

Hi all What is the most commonly used object persistence framework for .NET? Thanks Pete ...more >>

Hi, I'm new serialization concepts....I need some hwlp.. I've a class defined as follows class CustomSerialization1 { private string s; public string Test { get { return s; } set { s = value; } } private int i; ...more >>

Hi group, I have a little problem using the deployement project. I have develop some kind of sp=E9cific file editor, and i install with it some example of those specific files. these file are not necessary, but if i suppress or rename it, and run the program, before it start Windows Installer...more >>

Hi all, I recently installed windows workflow foundation and then realized that I could no longer see .NET framework documentation in my MSDN help. I installed the SDK hoping that it would merge back in. However, I now have two separate help collections, one with the framework classes etc......more >>

Hello, I have developed a C# windows appl using .Net framwork 1.1, it is working fine on Windows XP. But one of my workmate tooks it home to try, when she tried right click to get to the context menu of the application, it doesn't work at all. Does anyone know what causes it? Thank yo...more >>

Hi all, I am having a problem with different version of website. One website written in Dot Net I and another one usig Dot Net II. The 1st website using Dot Net I had successfully run for few years. Until, I am configuring another website in same IIS whcih using Dot Net II. Once I start the s...more >>

Hi, I have a collection, which is a property of a class: public class PostcodeCollection : CollectionBase { // ...collection specific properties [XmlAttribute("Total")] public int Total { get { return List.Count; } set {} } } The main class is: [Xml...more >>

im getting the ol' Could not load file or assembly 'ComponentArt.Charting.WebChart, Version=2007.1.1052.2, Culture=neutral, PublicKeyToken=9bc9f846553156bb' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. as you can see the .net fr...more >>

Hi All, I have this following code which works fine in 1.1 but gives runtime exception 2.0:- Reflection Code to get One Property from COM Object ------------------------------------------------------------------------------- Dim objSession as Interop.ComObj.Session Dim objAgent...more >>

Hello, I am writing my first ASP.NET application (I use .NET 2.0, Visual Web Developer 2005 Express Edition and SQL Server 2005 Express Edition). The application builds successfully but when I try to start debugging from Visual Web Developer I receive message box: Unable to start debugging on...more >>

Hello everyone, I'm experimenting running side by side fw versions on a test box. One thing i do not understand is how it is determined the version to use when running an app. I wrote a very small proggy that just displays the version of the framework it is run by. If i use vs2003 (with fw1.1)...more >>

I’m researching the idea of using caching in my application. And I wanted to get other people thoughts that have used it with .NET 2.0. Below is an explanation of the current process: I have an application with several web pages. When any of these pages is first loaded, it retrieves the i...more >>

Hi, I am currently working on a diagnostic utility for developers, and some of the things I want to check are whether a dll in a project output folder is locked and cannot be over-written, or if an incorret version of a dll has been cached in the temporary internet files folder. A friend...more >>

Hi, guys, As you know, in VB6, we have have DoEvents. How can we do the same job in c#.net? Thanks....more >>

Abstract The solution scope is to redirect intercept and redirect every call that accomplish with a call number pattern on Windows Mobile smartphones to a toll free number which is a prepaid platform. Solution Components CallListener: This is the component responsable to monitor when an end-...more >>

I've been maintaining some source code, and I've noticed some radical inconsistency in the code, particularly in the way that parameters are validated. I've noticed that this seems to have been pretty much the case throughout my career. For instance, consider the following block: If siteI...more >>

Hi, is it possible to fill a shape, for instance a Rectangle, with a HatchBrush ? Is it possible to do this in XAML ? Thanks, Joris Spriet ...more >>

Hi all, I did not find any other suitable newsgroup for my question, so I took this one here. I have a little project which has some kind of a network scanning wizard, to find local area computers and access them using the Eventlog or simple pinging them. 1-2 years ago I wrote some cod...more >>

hi, Nigel The laptop that I want to have, has Windows Media Center. I was reading on net that the main differance between Win XP Pro and WMC is that WMC has 'joining a domain capability disabled'. ..--------------- Here is an excerpt: Media Center is essentially just an application that's ...more >>

On some client's computer the XmlDocument.Save() fails with some weird internal error such as: ============== Exception : System.IO.IOException Message : Unknown error "-1". Source : mscorlib Help : Stack : at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullP...more >>

Is there a way to find the Parent Thread that spawned a certain Thread? For example: Thread a Spawns Thread b From inside Thread b's process, can I get to Thread a's TLS (Thread Local Storage)? ...more >>

Ok. If anybody has a url , that'd be great. My IT Department is asking for the exact lowdown on 3.0, from a machine/OS perspective. 3.0 projects can be developed on a. XP SP2 b. Vista c. ( I guess 2003Server, but how uses that as their personal OS) and deployed on...more >>

Hello, friends, What is the best way to test if two date values are the same day (same hour) or not in c#.net? As you know, in VB6, we have a fuction DateDiff("d", date1, date2). Do we have a similar one in .net? Thanks....more >>

Hey all, I am having problems with the close method of the serial port class in vb 2005. I have a button on a form that calls the Close() method, but every now and then the program freezes. I have go into task manager to end the process to get it to stop. Just before I call the close() meth...more >>

Hi, guys, I have a switch statement like the follows in a KeyPress event: switch (e.KeyChar) { case '0' - '9': case 'A' - 'Z': break; default: break; } Of cours...more >>

i've created a console application whcih reads different file formats and scans for some for words.... the application builds fine and executes finely..but sometimes, the exe automatically becomes 0kb and gives me this error <Application.exe> is not a valid win32 application.. can anyon...more >>

I've used a checkboxlist control on my form.. i'm populating values dynamically at runtime to this list.. but when i do it, the checkboxes so added are remaining unchecked... but I want a newly added item to be checked by default... how do i do it? any good samples......more >>

to store user preference in our application we have an 'hand written' XML file. (as opposed to XmlSerializer written one, which crash sometimes, on some user's computer, for some unknown reason.. but I'm digressing) In this XML file I store object value, which I convert to string (when writ...more >>

Hello. How can I get volume ID on which I have open file? Alexi....more >>

Okay, this has come up in the past but I haven't seen anything that I would call a good, solid general rule. The question applies more generally, but I'm going to ask in the context of a Control. How does one decide whether to write an "override" method to an event and when to simply ad...more >>

Hi, I am writing a .NET windows Service that will access the database every 10 minutes. When the service calls the function in the business services layer which in turn calls the correponding function in data access layer, this DAL function fails. The reason 'apparently' being that the it ca...more >>

The thread bellow titled 'Determining if two paths are the same' brings to mind some of the first 'things' I had heard way back when DotNet started. It was going to be the panacea of cross platform development. I am asking the question here of the group to find out if everyone (anyone) ...more >>

I thought I was an experienced programmer but I'm looking at the beginning WWF tutorial (Simple Expense Report) and I'm baffled. I feel like I don't know how to even begin reading this. I thought this was supposed to be interactive coding. Since when do we cut and paste into a project file?...more >>

hi, I have couple of questions about clickonce again, I am publishing a Winform appplication using ClickOnce. In the 'Publishing Location' text box I input the directory name (C:\CLICKONCE\Test2\). In the 'Installation URL' what shall i input. Why do i need to input a URL when it is simp...more >>

Hi, I have an application that displays forms on the users desktop, what I am doing with it is having a SystemEvents SessionSwitchEventHandler to capture the lock of the desktop, I would like to kill the forms when this event is captured, that piece is fine, but I would like to sleep the app unt...more >>

I'm trying to jury-rig an installation of MSDN for VS2005 from ISO disks. The company I'm working for has an 'install drive' so I'm not sure of the pedigree of these directories. Essentially, since I don't have a CD burner at my disposal, I'm trying to run the installation directly from the ...more >>