reference question

[Hei]

hi,

dim a as objectA = new objectA
dim b as objectA
b=a ' what the thing in b? is here say b is a reference ?
a=b ' what the thing in a?

Hei.

[Armin Zingler]

"Hei" <ch******@msn.com> schrieb

I assume, "objectA" is a class name.

dim a as objectA = new objectA
dim b as objectA
b=a ' what the thing in b? is here say b is a reference ?
a=b ' what the thing in a?

b=a:
The reference in a is copied and stored in b. After the assignment, a and b
reference the same object.

a=b:
The reference in b is copied and stored in a. Before and after the
assignment, a and b reference the same object, so the assignment is
superfluous.
--
Armin

http://www.plig.net/nnq/nquote.html
http://www.netmeister.org/news/learn2quote.html

[Herfried K. Wagner [MVP]]

* "Hei" <ch******@msn.com> scripsit:

dim a as objectA = new objectA
dim b as objectA
b=a ' what the thing in b? is here say b is a reference ?
'b' references the same object as 'a' does.
a=b ' what the thing in a?

'a' already references the same object as 'b', so this assignment is
useless.

--
Herfried K. Wagner [MVP]
<http://www.mvps.org/dotnet>

[Hei]

ic

thx.

"Herfried K. Wagner [MVP]" <hi***************@gmx.at> wrote in message
news:uV*************@tk2msftngp13.phx.gbl...

* "Hei" <ch******@msn.com> scripsit:

dim a as objectA = new objectA
dim b as objectA
b=a ' what the thing in b? is here say b is a reference ?

'b' references the same object as 'a' does.

a=b ' what the thing in a?

'a' already references the same object as 'b', so this assignment is
useless.

--
Herfried K. Wagner [MVP]
<http://www.mvps.org/dotnet>