I have a custom attribute targing Property:
[AttributeUsage(AttributeTargets.Property, AllowMultiple=false,
Inherited=true)]
public class StatefulPropertyAttribute : Attribute{}

I have a class that has a property returning IList. For example,
class A
{
   public IList<string> MyList

I am a fairly seasoned developer and have recently started looking at
software design patterns.  I am starting with the Abstract Factory Pattern
and was wondering if someone could help me understand where I might use this
Pattern.  I get the general concept but I am having a hard ...

Our team have a web project which includes some C# ActiveX DLLs.
On some developers' PCs, the code which calls methods in the ActiveX
dll is succesful - no exceptions.  On other PCs, the ActiveX control
doesn't even seem to get loaded.  (On the failing machines, if we try

What is the easiest way to save a copy of SMTP email messages to a file?
I have an application which sends out SMTP messages with an attachment and I
would like to save a copy of these messages, kind of like when you Save As
message in Outlook or Outlook Express and when you ...

I would like to know the best way to store credentials in a c# application.  
I am writing some administrative tools and will need to store username and
password information for a domain account with elevated privileges.  While I
am sure this is not a "best practice" I have not ...

As far as I understood intermediate CSharp IC code can be retrieved resp. re-engineered
to a similar source code as the original.
Are there any options to obfuscate the code ?
Carla

I have a ListView with checkboxes.  I want to remove items when the
checkboxes are unchecked, but to do so yields an
ArgumentOutOfRangeException.  Is there an easy way to get around this?
A simple program that illustrates the exception is below:

The following code runs fine. I let it go several thousand times and then
killed it.
private void button1_Click(object sender, EventArgs e)
{

I have an interesting problem.  I have a directory of image files.
However, none of the files have an extension.  I need to figure out what
type if image it is and attach an extension to the file.  Is there a way
to determine image type in the .net framework?

I have the following snippet of code which works both as a standalone
application and as when incorporated to a windows service.
There seems to be a slight difference between the service and the
standalone app however.

I m kind of new to multithreading programming and try to implement one
solution. The problem I have is, I have one background thread which
does time consuming processing. The parent(calling) thread can be
windows application or console application or simple object. How can I

I usually stick to the convention of not declaring variables in my bodies of
"loops" (including foreach)
ie
int x;

Why is the IDisposeable implementation of WCF clients private?
I'm glad that you can still Dispose() by casting or with using ( .. ) { .. }
because IDisposable is indeed implemented but what was the design reasoning
to make Dispose() private?

I've been using reflector to look into some of the core MS .NET
assemblies.  I have noticed this pattern in the naming of classes that
wrap p-Invoked Win32 api functions.
I like this pattern.