Assignment Error in LINQ

Question

I am changing string array into dictionary collection.

string str = "When everybody is somebody then no one is anybody";

               char[] separation = { ' ', '.', ',' };

               var splitted=str.Split(separation);

(Absolutely it is not a good design,but i wish to know the logic)

When i build query

var indexed = (from i in Enumerable.Range(1, splitted.Length)
               from strn in splitted
                select new { i, strn }).ToDictionary(x => x.i, x => x.strn);

I received "Key already found in dictionary" . I am supplying unique keys as enumerated values.

Answer 1

No, you're not supplying unique keys. You're supplying:

1 When
2 When
3 When
...
9 When
1 everybody
2 everybody

etc

... so you'll be giving "1" as a key twice (then you'd supply "2" as a key again if you ever got that far).

What result are you actually trying to achieve? If it's: 1 -> When, 2 -> everybody etc then you want:

var indexed = splitted.Select((value, index) => new { value, index })
                      .ToDictionary(x => x.index + 1, x => x.value);