Casting an Array of Objects to a typed Array

[Phil Jones]

If I have an array of [Object]'s, all of the same type (say [String] for
example).

Is there a quick way to cast that to a typed String array?

Presently I'm having to copy each object to a new array. I'm wondering if
there a conversion class within the framework that makes this quick and
simple.

Cheers everyone.

 

[Imran Koradia]

Assuming the items were originally defined as the stronger type (say string
in this case) and not as type Object, you can do this for reference types
(string and others):

string[] str = (string[])objarr;

where objarr is the object array containing the strings. However, this won't
work for value types - you can use Array.Copy for value types but I would
think that would be slower than casting each item (although it would be more
concise).

object[] o = new object[]{0,1,2};
int[] i = new int[o.length];
Array.Copy(o, i, o.length];


hope that helps..
Imran.

 

[Phil Jones]

Thanks Imran, appreicate the pointer!