Question

How can I convert below code in LINQ

foreach (RepeaterItem ri in rptNews.Items)
            {
                HiddenField hdnUserId = (HiddenField)ri.FindControl("hdnId");
                int userId = Users.Current.UserId;
                if (Convert.ToInt32(hdnUserId.Value) != userId)
                {
                    ((ImageButton)ri.FindControl("img1")).Visible = false;
                    ((ImageButton)ri.FindControl("img2")).Visible = false;

                }

            }

Also please guide me how can I learn to translate this kind of code to linq.

Answer 1

Linq is intended to select a subset of data not just iterate over a collection. In your example you are not selecting anything, you are simply looping through a collection. Linq is not the correct tool for what you are trying to achieve.

Regarding your comment that Linq is faster, a linq query will eventually boil down to a series of for and if statements once the compiler has worked its magic, so I doubt it would be any faster than you foreach even if you could use it without a select clause.