Question

I’ve got a LINQ query to group elements by the first letter of the word

var res = from sign in all
          group sign by sign.first_letter into grp
          select grp;

But when I have apple and August, I’ll get two groups. Group a and group A. How to put them in the same group ?

Answer 1

You could group by the lower case letter, using either Char.ToLower or String.ToLower, depending on the type:

var res = from sign in all 
          group sign by Char.ToLower(sign.first_letter) 
          into grp 
          select grp;