Um,i search the problem through the internet.There is a code in *.cs:
using System.Runtime.InteropServices;
[DllImport("Test.DLL",   EntryPoint="TestOne")]
 public   static   extern   bool   TestOne(string   src);

1)    What will the value of txt be after executing MyFunction?
public void Main()
{
    string txt = MyFunction( “12345” );

I've been programming in C# for about 3 months now and I've completed a
previous project that worked a lot with data, so I know the basics.
This is what I need to do, try and see what you would do as an expert C#
programmer.  I have to make a paired sales analysis which takes the ...

I have a small helper service that is peppered with try-catches for all the
exceptional cases I could think of.
It industriously logs every error it comes across for debugging later on.
Wonderful; however on the odd time it blows a gasket the solution is in

Question:  the "myList" below is the same (works the same) whether
instantiated inside the (normal) constructor, as below, and as my
standard practice, or outside?
RL

Well, contrary to the implication in my 2000 textbook on C# (public
beta version), C# does allow multiple inheritance, so long as it's
serially chained as follows:
 class derived02 : derived01

Best practices question.
When receiving an object passed from another method, is it a good idea
to use a shallow copy with a temporary object received on the RHS
(right hand side of =), or to use a instantiated object to receive the

I know I could take all the xml files and loaded them into a single
XmlDocument and then use xpath to search for nodes.  However, is there
a way that would work but not use up so much memory?
I am integrating an rss reader into a program.  I'd like the ability

On my development computer, the new site looks and acts great.
But when I ask a coleage to check it, the pages never look right:
example:
1. the gridviews are always overlaping text.

I am wondering if I am using TCPClient class in C#, how to setup timeout
value? Timeout I mean, when connects to server for the 1st time, and during
<timeout> interval, if no server response is received, the GetStream method
will return will return other than wait forever.

 I am new to c# development. I need to develop a windows application that
connects remotely to another application using tcp/ip and gathers statistics
like, application running or not, application uptime and also some more data
that the other application sends to this monitoring ...

This one is a little difficult to explain.
I placed a RichTextBox control on my form, I called it chiMain, then I
wrote CHITextBox.cs.  This class extends the RichTextbox class, and
has a constructor that looks like this:  public CHITextBox () : base()

I have a tabcontrol where I want to capture the CTRL+C key combination. My
tabcontrol has on its tabpages some treeView controls. My intention is to
intercept the event of pressing the CTRL+C when one of the controls embedded
in the tabControl has the focus. I'm doing this using ...

I have some problem to retrieve an image from my application.
Here is my code :
Stream imgStream = null;
Assembly a = Assembly.GetExecutingAssembly();

Why can't I say the following;
Rectangle r = null;
The compiler tells me that null is a value type and can't be converted
to Rectangle.  But I can't generally set any reference type to null.