When i was trying to recursively delete a directory:
  Directory.Delete(mydirectory,true);
It threw the following exception for a lot of files:
System.IO.IOException: The process cannot access the file "abc.xsl" because

Visual Studio.net is a big package. I'd like to upgrade to a newer version.
Should I follow the general practice and uninstall an older version before
installing a newer version?
Ian St. John

I am trying to learn how to use the System.Timers.Timer control to perform
an action every certain amount of time. However, the Elapsed event doesn't
want to fire, but I can't figure out why. I looked at several code examples
online, but I think I was doing everything the same ...

New here, but I have a question.
I am looking to download the .net framework thing so as to use a couple of
programs I have downloaded. I was advised to go to the start menu then click
Windows Update. I did this and then searched for the .net framework, the

I will import function Polygon from GDI Win32API, how should i declare this
function in C# using DllImport clause.
Thanks for any sugesstions,
Regards,

Hi all experts
I'm designing a kind of network application in which one machine will
communicate with many other (about 50) machines over a period of time at the
same time. The communication is of two-way P2P nature between the main

All,
I want northwind sample for the study purpose, can anyone let me know where
I can get it?
Thanks in advance,

a small application that includes some CR reports is installed on several
notebooks of my customer. It works fine on most machines. But on a few
notebooks the users reported the well known damn error  "Keycode DLL not
found or invalid keycode" after trying to open a report. I ...

My hard drive crashed so I've had to reinstall everything.  I use Microsoft
Visual C++ .NET and I'm now getting an error when I try to build/rebuild
only my particular project (it's a COM object - a Service):
Project : error PRJ0019: A tool returned an error code from "Performing

Hi, I like to cache data in Windows application similarly as we do in
ASP.Net using System.Web.HttpContext.Current­.Cache. any idea how is
do it? Thanks

I didn't know which group to post this in, so I did something I usually
don't do which is post the message in multiple groups - sorry for that!
My problem is that I have build a .NET application and made added a
deployment project to the solution that creates an MSI-package. This ...

I'm porting a Mac application to window.
Regularly I have comment like that:
- (me): hum.. there is no shadow object in .NET's Graphic's object.
- (him): what? but that's standart (mac) stuff!!!

We are planning to use dotnet instead of J2EE framework for our new project.
One question that our development team raised "How to trigger a mainframe job
from C# or VB"

I'm new to this group but I've found many usefull discussions here.
Here's my problem/question. I want to add a domain account to a local
administrator group of one of the domain servers via a webservice
written in C#. I've read most discussion on creating a user and adding

I am currently designing a framework for rapid .NET development of
ASP.NET applications.
We are concidering keeping our error messages and other string
constants outside the code with some sort of a resource manager.