Distinct in Linq based on only one field of the table

Question

I am trying to use .distinct in Linq to get the result based on one field of the table (so do not require whole duplicated records from the table).

I know writing a basic query using distinct as followed:

var query = (from r in table1

orderby r.Text

select r).distinct();

but I need results where r.text is not duplicated.

Answer 1

Try using the code given below:

table1.GroupBy(x => x.Text).Select(x => x.FirstOrDefault());

This will help to group the table by Text and use the first row from each group resulting in rows where Text is distinct.