Blogging this in order that I remember in the future that I have been around this “loop” many times and that this code;
int x = 1;
Action a = new Action( ( ) =>
{
x++;
});
a( );
Console.WriteLine( x );
prints a value of 2 whereas this code;
int x = 1;
Action<int> a = new Action<int>( ( i) =>
{
i++;
});
a( x );
Console.WriteLine( x );
prints a value of 1 and that means that this code;
struct MyStruct
{
public void Set()
{
flag = true;
}
public void Print()
{
Console.WriteLine(flag);
}
public bool flag;
}
class Program
{
static void Main(string[] args)
{
MyStruct myStruct = new MyStruct();
Action action = new Action ( () =>
{
myStruct.Set();
});
action();
myStruct.Print();
}
}
prints a value of true whereas this code;
struct MyStruct
{
public void Set()
{
flag = true;
}
public void Print()
{
Console.WriteLine(flag);
}
public bool flag;
}
class Program
{
static void Main(string[] args)
{
MyStruct myStruct = new MyStruct();
Action<MyStruct> action = new Action<MyStruct> ( (ms) =>
{
ms.Set();
});
action(myStruct);
myStruct.Print();
}
}
prints a value of false.
Now…let me never forget that sort of stuff again and have to open up ILDASM to figure it all out once more.
I hope I wrote it down correctly above 🙂
Mike Taulty 