I came across an idiosyncrasy about nullable value types. According to the
documentation there are two valid syntax for nullable value types. One is
using the Nullable<T> generic and the other using nullable type modifier T?.
However, if you use the HasValue call without first ...

I've a simple form, in which I've included a datagrid and for testing
purposes I'm using the Northwind DB.  Basically in my datagrid I'm showing
the whole employee table.  I've managed to put a text box onto the form and
I'm able to bind the employee's ID to that text box.

In the form cs:
form()
{
      Thisfrm = this;

How many characters are on a standard console?

I am trying to figure out how to pass set of credentials to System.IO
Challenge is:
App is running under one set of credentials, but via GUI user have a chance
to enter another set. I would like to be able to use supplied credentials

I'm trying to create a textbox inheriting from the standard textbox. I
would like to:
1. repaint the textbox border;
2. define a color for that border;

I have be programing in C# for two months now.  I am still a beginner and
yet have learned alot.  I have written windows services, web services, web
sites and windows applications.  Now could someone please take a minute and
fully explain to me what GAC, Assemblies and PDB are?

Hi All,
I know there have been previous posts with this topic but the issue for
most seems to be the security permissions on the shared drive. My
scenario is as follows :

So, I have my little .Net 2.0 C# utilities out in the wild and occasionally
they have bugs(!). Often the bugs are easy to troubleshoot remotely but
occasionally I would like to write detailed trace info to a simple text file
that I could use to further track down the bugs. ...

Can someone point me to the url for getting direction on how to help BA
on creating fitness fixtures?? (I couldn't find the place where I can
download fitness to install in my box to do some testing)
Thanks.

I have a WIN32 DLL which pass some information to a .NET based
application via the windows messages. When I try to convert this data
in the managed code, I am getting junk data. Does any have any clue on
whats wrong?. Here is the code snippet.

I have an application that creates directories in ...\All Users\Application
Data. When I create the directories I need to make sure all users can modify
and add files to them. How do I set permissions on the directory so that
when they are initially created, "Everyone" has full ...

Consider the following line of code:
Address addr = ei.Address;
where ei is an instance of a class that has got a property of Address
type.

I have some question.
1. I have a filled StringCollection A. When I assign it to an
StringCollection B and remove a value from B, because strings are only
referenced, right? But now I need a copy of this StringCollection within

Let's say you have three classes, ClassA, ClassB and ClassC.  You'd
like ClassC to descend from ClassA and ClassB (because, for instance,
ClassA is a UserControl and Class C is all of your validation code).
At the moment you can't do it - your code either has to be in a static