What are the advantages/new features .NET 3.0 brings in compared
to .NET 1.1.What are the impacts on the current system using 1.1,
backward compatibility etc. Can i get some heads-on comparison between
the two?

I have a class, which has some data. I work with list of objects of
this class. The data of each object can have different types. For each
type of data should has its own Value property to be correct. It looks
like this:

I have benefited from a profitable idea for a stand-alone program that
I've created in C#.  Up until recently, my method of licensing hasn't
been touched.  I base authorization on user accounts, and the program
sends and receives RSA encrypted data in order to determine whether or

When I change the source code and save it I have currently always to press
explicitely F6 zu "compile" the code (and get new error list).
Isn't there an automatic build function which is called whenever I save new code ?
BTW: What is the difference between the two menues:

Assume the current name of my project is "mytestroj". A couple of project files are
named with this stem name like mytestproj.sln,  mytestproj.suo, mytestproj.csproj,....
How can I rename my project to "testproj1" ?
Is it sufficient just to rename all file in WindowsExplorer?

In general I have two procedures which are called at the beginning of a Form:
Form1() { InitializeComponent(); ..... }
and
Form1_Load();

1) I start my client Windows app
2) At a breakpoint I attach to the aspnet_wp.exe
3) I continue stepping through code
I am expecting to make it over to the service project (where I have a

I understand VS2003 cannot develop applications with .NET Framework
2.0.
But is there any tricky way to use from a Windows Application built
with VS2003, classes from System.IO.Ports namespace, that is, classes

Hi, I have a project configured as follows:
Main form with a tabcontrol with 1 tab page and a panel with some text boxes
in. This form also has some bindingsources dropped onto the form.
When a selection is made the program instantiates a new class which creates

I know it is very easy, but I just can't fngure out the algorithm.
For example: I have these:
string[] a={"1","2"};
string[] b={"a","b" "c"};

I have a product entry program that I need, at the time of entering
the description,
to open an extra window for the image that goes with the description.
This product adding program is a windows application for updating our

Does anyone have any idea that how to use
GetLogicalProcessorInformation, win32api, under using csharp?
http://msdn2.microsoft.com/en-us/library/ms683194.aspx
For me, one of the most difficult things is how to define

Is it possible to do a case insensitive comparison of individual characters?
I tried:
Char.ToLowerInvariant(charA).CompareTo(Char.ToLowerInvariant(charB))
And though it works for the most part, it didn't seem to work for all

Hi all. I am sorry for my weak English.
   I want to dial a modem to ISP with C#. All documentations about this I
could find are based on openning serial port and sending modem commands to
it like "ATD<number>" for tone dialing  and "ATDP<number>" for pulse dialig.

I can't seem to find a test for DBNulls. Whatever I try doesn't work.
for (int x = 0; x < dataSet.Identity.Rows.Count; x++)
{
   DataRow dataRow = dataSet.Tables["POI_Entity"].NewRow();