When using DllImport to import win32 functions that have strings, I
know you can use the native c# string type.  But, what about a
function that expects a string buffer, and writes to it?  I've seen
people use StringBuilder for this, but is string good enough?

Thank you all for you invaluable help learning c3
MJ

The title says it all. How do I use XMLDocument.Validate() against a
DTD.
In all my Googling about this I only find examples of how to validate
an XMLReader or XmlValidatingReader against a DTD.

I have a Main form called frmMain which appears when the program
starts, and a second form called frmUserName.  frmMain has a button,
btnUserName.  When you click it, I have this code:
frmUserName f = new frmUserName ();

Can some one suggest me as why StringBuilder class is better than Strings?

Sorry for the long-winded dissertation - but, I have an application where I
need to write text to a rich text box using a common method, callable from
anywhere in my application.  The color of the text will depend upon the first
argument and the text will be contained in the ...

I have a WinForm with a single command button in the middle, I have
added a KeyDown event handler to the form and the method for this is:
  private void Form2_KeyDown(object sender, KeyEventArgs e)
       {

Using VS.NET 2005, if you place a WinForms WebBrowser control on a
form, then place a command button on that form and in the "click" even
handler for the command you do:
webBrowser1.DocumentText = "";

I am using a streamreader to read a one line text file.  The line looks like
this:
"99999","04/30/2007","XXXXXXXX","XXXXX, XX","XX",""
When the line is read in I get this: i

Is there anyway to force the application to handle the Red X button
differently?  I cannot use a generic Closing event as it will prevent
the system to shut down properly.  I hope that, when clicking on the
red X button it will only minimize the window, or just hide it.

I'm using an object that has a dataset within it.
When the object is instantiated I populate the dataset from xml files.
I want the object to save the dataset back to the xml file before it is
destroyed, but I'm not sure when to call this routine. Should I call it

Hi, i want to access an array of objects inside a method like this
using System;
using System.Collections.Generic;
namespace ObjectArray

I am trying to teach myself how to compile my application at the command line
with the csc.exe.  I found a good article which steps you through the
process, but I have some questions, which I hope someone can elighten me
on....

I have a numeric up/down control with it's Hexadecimal property set to true.  
I would like to use it to represent 32-bit hex values and would like it to
always display all 8 digits even if they're 0s.    Is there a reasonable way
to do this?  Thanks!

I am using:
Application.ThreadException += new
System.Threading.ThreadExceptionEventHandler(Application_ThreadException);
But, my function is not run when an exception is thrown on another