C# ToDictionary lambda select index and element?

Question

I have a string like string strn = \"abcdefghjiklmnopqrstuvwxyz\" and want a dictionary like:

Dictionary(){
    {\'a\',0},
    {         


        

Answer 1

You could try something like this:

    string strn = "abcdefghjiklmnopqrstuvwxyz";

Dictionary lookup = strn.ToCharArray()
    .Select( ( c, i ) => new KeyValuePair( c, i ) )
        .ToDictionary( e => e.Key, e => e.Value );