Is there a difference between "(Type)abc" and "abc as Type"

Question

Possible Duplicate:
Direct casting vs 'as' operator?

Firstly I am sorry if this is a duplicate, I have tried to google but it is not an easy "google to do"!

Is there a difference (functionally, performance wise, etc) between the following code fragments:

MyClass myClass = (MyClass)someObject;

MyClass myClass = someObject as MyClass;

There you go :[Direct casting vs 'as' operator?](http://stackoverflow.com/questions/132445/direct-casting-vs-as-operator) — Habib, Sep 13 '12 at 11:31

score 9 · Accepted Answer · answered Sep 13 '12 at 11:31

9

Yes there is a difference!

as operator will set variable to null if casting fails

Explicit casting will raise exception

answered Sep 13 '12 at 11:31

opewix

score 1 · Answer 2 · answered Sep 13 '12 at 11:32

1

Yes, the first variant will throw an exception, if it can't cast 'someObject' to 'MyClass'. Whereas the second will then just return null.

answered Sep 13 '12 at 11:32

Franky

2 Answers2