How to read from Lua arrays into c# using NLua?

Question

I have seen a few other posts, but they are the opposite of what I want to do. I simply have an array of ints in my lua file, and I want to know how I change that into a c# array. Using lua ["ints[1]"] throws an exception.

I think this would be very useful to know for many people, as it could be used for tilemaps, or many things really.

Could You please provide full code example and the exception itself? — Kamiccolo, Dec 13 '16 at 13:12
[Here](http://pastebin.com/NTmpW7Bn) I am just trying to read id's from a file into a 2D array in the same order, using a lua file. But, using the lua ["codeid"] with lua arrays causes an NullReferenceError. — Osuology, Dec 14 '16 at 16:49

score 0 · Answer 1 · answered Jul 07 '22 at 14:13

The array of integers you have on the Lua side is just a Lua table and on the C# side it's a LuaTable type.

Do this:

lua.DoString(@"
    my_array = { 1, 2, 3, 4 }
");

LuaTable myArray = (LuaTable) lua["my_array"];

foreach(var val in myArray.Values)
{
    Console.WriteLine(val);
}

Result:

How to read from Lua arrays into c# using NLua?

1 Answers1