Is there a way to set additional headers in an email message sent using
System.Net.Mail (.net 2.0) ?
I want to add some additional headers to the outgoing emails but cannot seem
to find a way to add additional headers to the email message.

I have an ActiveX control that I have been using for years, it was written
in VC6.0.
How do I put this control on a c# web form and access it via a variable from
the c# code ?

I've developed Winforms C# simple application that does not contains
any "strange" reference to any external or third-party DLL. It only
reads and writes a file.
A user tried to run it from his W2000, but failed. Normal because he

    There is a scenario, in which there is a counter in my base class.
There is some initial value of this counter (check below code). Now
there is a function "DecreaseCount", which will decrease count. Now I
want some functionality like when this counter become zero(0) a

if the reason for error is simple, excuse me. but i cant find what the
reason is. Here is the snippet :
string script = String.Format(@"<script src='common.js'
type='text/javascript'></script>

I've an asp.net, c#, sql server website and the volumes are starting to
rise quickly.  I've been asked to look at improving the memory usage of
the application.  I've not looked at this before so these are probably
naive questions:

Hope someone can help me out here.
I'm writing some code (web forms) to see where a specific domain name
resolves and if its not a local address, redirect to a specific
redirect page.

I am reading data from a unix odbc datasource in a c# program. Reading the
data as works fine, but one field, contains a date-time format that .net
does not understand.
The query would be: "Select birthdate from <tabel> where bla bla"

I'm in the design phase of a little database program in C#.
But I don't know what database to use.
The DB should be free, easy to set up, and easy to program up against in C#.
Are there any good guides regarding this subject?

I would like  to do
int accumulator =  (int)  bitmap.GetPixel(x,y);
but it is unable to do the casting from the Color to the int. How can I
do?

I'm using bmp.Save() and the bmp is in PixelFormat.Format8bppIndexed.
But when I open the image with Gimp, it tells me that the image is RGB
and not grayscale.

In general how do you indentify a specific error? If 2 different error
conditions throw the same type of exception how do you know which error
occured? There are no error numbers, so are you forced to compare
Message strings? But these strings are locale dependent, so that

there is a execution file with some parameter which is title property .
this file is a windows form file and also exe file . Not DLL file.
i'd like to execute it  another program.
when another program start it i want to change it's title property

I am just wondering how do we test the transaction's Commit and Rollback?
How do we simulate a situation to let the transaction fail then Rollback?
Thanks for help.
Jason

I have two questions.
1) What is the code to check if datagrid already has a datasource?
When the user clicks "ADD" button I want to add a record to the data grid,
if the user clicks "ADD" again I want another record added to the datagrid.