VB.Net Web Developer's Guide

Optimizing, Debugging, and Testing • Chapter 11 543

have some performance advantages.This is because the Value types such as these

are allocated on the stack where they are accessed and removed quickly with very

little overhead. Objects passed by reference are allocated on the heap, which

requires interaction with the Garbage Collector and in turn generates greater

overhead.

Strings

Strings in Visual Basic .NET are objects. But the difference is that you cannot

modify a String object.That is to say they are immutable.Traditionally, if you

modified a string, you actually modified the specific string. Now, when you

modify a string (perhaps replace the middle ...