Using C# and LuaInterface, I am trying to read a nested table, but am getting a null LuaTable when I try to open the key containing the table.

The .lua file:

DB = {
    ["inventory"] = {
        [10001] = {
            ["row"] = 140,
            ["count"] = 20,
        },
        [10021] = {
            ["row"] = 83,
            ["count"] = 3,
        },
        [10075] = {
            ["row"] = 927,
            ["count"] = 15,
        },
    }
}

I can successfully foreach the entries under inventory, by opening that table with:

LuaTable tbl = lua.GetTable("DB.inventory");
foreach (DictionaryEntry de in tbl)
...

What I cannot do is open an inventory item and enumerate its entries the same way. Is this because the key is a System.Double type? This fails:

LuaTable tbl = lua.GetTable("DB.inventory.10001");
foreach (DictionaryEntry de in tbl)

with an exception, because tbl is null.

Effectively, once I enumerate the keys (inventory items), I then want to drill down into the nested table and work with those contents. As you can see, I am not able to get a reference to the nested table the way I am doing it.