Wanted to share a small note
keeping in mind the "as" keyword .
|
public class
Program
{
public static void Main()
{
object o = 100;
string s = o as
string;
string t = (string)
o;
}
} |
IL_0000:
ldc.i4.s 100
IL_0002:
box
[mscorlib]System.Int32
IL_0007:
stloc.0
IL_0008:
ldloc.0
IL_0009: isinst
[mscorlib]System.String
IL_000e: stloc.1
IL_000f:
ldloc.0
IL_0010:
castclass
[mscorlib]System.String
IL_0015: stloc.2
IL_0016: ret |
If you notice that "as"
is translated into isinst opcode and the advantage of using this is that it
would return a null reference if the object of is not castable to a
string.
On the other hand the castClass would throw an InvalidCast
exception.
I wished MS would get things out to more people and faster
http://start.com