I want to create a class library (DLL) so that the webpage can call my DLL.
However, as I am pretty new to C# (and .NET), I don't know can I create the
class as what I did in normal C# project ?
I mean as I created the DLL and also methods inside class library, eg. class

I wrote a class with a variable which value is modified although
there's no responsible statement, as I see.
Below the code - the class is a user control.
public partial class BooksiDataList : System.Web.UI.UserControl

Question about best use of interfaces:
Say there's a 'Master' class that needs to implement a few
interfaces:
 class Master : I1, I2, I3

We have a recurring problem where a (long-running) service throws an
exception while trying to access a file. The problem is that this is
very rare (happens once every week and without warning) but does happen
time to time. We are trying ways to find which other process is holding

I need to duplicate the functionality of a java applet, and how it connects
to a remote server.  But, I don't have the protocol information or the java
source code which was written years ago.   So, I used a packet sniffer and
saw the protocol (TCP), the port, IP address, etc.   All ...

I'm afraid that I've not done anything with mail for over 10 years. Back then
it was C and Mapi. My boss wants me to display unread messages in the mailbox
on our intranet site. I'm writing this in C#. I asked him for his pop3
address and he said that we are using Exchange and ...

I am trying to get access to an MySql-Server over CSharp. As I am not sure
whether it is an csharp or sql driver problem, i am posting it here.
I got the following error:
PM Exception: Object reference not set to an instance of an object.

i use VS 2005 Web Developer Express and C# Express.
What is the right place to put a namespace with classes that i need in
both enviroments?
At the moment, the namespace is in the App_code when i use the Web

class A {}
class B {}
interface MyInterface
{

I am trying to decide on to create a collection object for a project that I
am working on.  I am fairly new to OOP so this may be on the basic side.  I
have looked on the groups, but can't seem to find the answer I am looking for
- just more questions!

Is there anybody out there who knows how to embed Mozilla engin in
CSharp application.
There are some useful articles in codeproject.com that show how to work
around this issue with IE ; but need embed mozilla in my windows form.

Using VS.NET 2003 with all the 1.1 framework updates. I've been
subjected to this bug in 2 separate projects, and in both cases, I've
found no way back other than starting from scratch again (which I
haven't done yet).

Do you have any material about creating an asynchronous sockets
application where the server can accept N connections (over a hundred
connections)? I need one that has a good explanation, not only a
sample, I want to learn about async sockets.

I have a small sellection of code here. When the "button1_Click" is
called the performance is quite poor (~ 0.5 sec). Only thing is I am
not really doing anything!! In C++ the same thing takes ~ 0 seconds to
execute!!. The  List<Pumpicle> is faster than ArrayList and I convert

Hi NG !
I try to solve a problem with the LogonUser() function, as you can see
in the topic:
http://groups.google.ch/group/microsoft.public.dotnet.languages.csharp/browse_th
read/thread/cffc0f53f5f75153/?hl=de#