Question

I have a function…

var neighbours =
    from x in Enumerable.Range(0, array2.GetLength(0))
        .Where(x => Math.Abs(x - refx) <= 1)
    from y in Enumerable.Range(0, array2.GetLength(1))
        .Where(y => Math.Abs(y - refy) <= 1)
    select new { x, y };
neighbours.ToList().ForEach(Console.WriteLine);

this func working well.
But I want:

var neighbours =
    from x in Enumerable.Range(0, array2.GetLength(0))
        .Where(x => Math.Abs(x - refx) <= 1)
    from y in Enumerable.Range(0, array2.GetLength(1))
        .Where(y => Math.Abs(y - refy) <= 1)
    select new { x, y };
neighbours.ToList().ForEach(label3.Text);

It doesn’t working.
So,I want convert System.Action To String…
Any idea for this?

Answer 1

You don’t really want to convert an action to a string. You want to create an action which does something with a value. I suspect you may want something like:

neighbours.ToList().ForEach(x => label3.Text += x.ToString());

(It’s hard to tell, but that’s my best guess based on your sample code.)

That’s pretty nasty though, in terms of string concatenation. Perhaps you want:

string text = string.Join("\r\n", neighbours);
label3.Text = text;

?