Simple question about =

[Kyle.Allbright]

I am having difficulty understanding the = operation in vb.net, my problem is as follows:

If I have:

dim number as int
dim numberTwo as int = 5

If we do:

number = numberTwo

number would be 5 aswell (we all know this!)

If I then do:

number += 1

number would be 6, and numberTwo would STILL be 5 (again, simple!)

So here is my problem:

When I did this:

dim mNodeList as XmlNodeList = Root.SelectSingleNodes("//.Kyle")

mNodeList would equal to the nodes within the element //.Kyle (again this works)

Now, If I cycle through this nodelist and change all the .innertext to something random, lets say "vb.net forums"

It would do that, Now If I then set Nodelist = Nothing

my Root would now have altered in the same way that the nodelist did.

...???? wha???

 

[JohnH]

mNodeList variable refers to a XmlNodeList object (containing zero or more XmlNode objects), it does not hold a simple value. Check out these articles about value types and reference types:
Common Type System Overview
Value Types and Reference Types

 

[Kyle.Allbright]

Thanks John, that cleared up alot!