How to remove NULL byte from String in C#

I started programming a ZX Spectrum in 1985 using Spectrum Basic (arghh) and Z80 assembler.
I switched to pascal and 80286 assembler in 1992.
From about 1999 I began using Delphi.
Pascal and Delphi will always remain close to my soul.
I learned a little C and C++ for my linux machine, but always hated it!
I graduated Chemistry in 1997 (Master in 1999) but I never used it.
I had to learn C# and SQL when I first got employed in IT in 2005 and I do not regret it.
I like C# a lot and I do warmly recommend it.
 
I use Windows 7 and Windows XP, Internet Explorer 9, Visual Studio 2005 and 2010, Paint.NET, Firebird SQL etc.
 
I am currently mainly programming Windows Applications in C# using Windows Forms.
 
I am Romanian and I live in Romania, but I visited lots of countries and learned many foreign languages.
 
I want to know stuff so I read a lot.
I like to ski and to play table tennis.
I play decent chess, backgammon, bridge and many other games. And, since I like board and card games, I also like to program them, of course.
I like to program for fun and I have lots of projects and not enough time to pursue them.
 
More? I don't think so. If you've got so far you are probably already bored.