Is there way to use Distinct in LINQ query syntax?

Question

Is there way to rewrite:

var tbl = ds.TABLES;
var q = from c in tbl
        select c.TABLE_TYPE;
string s = \"\";
foreach (var item in q.Distinct())
{
    s          


        

Answer 1

You may capture HashSet and put where clause before select:

var hs = new HashSet();

from c in "abcabcd"
where hs.Add(c)
select c;