Question

 var term = from s in DB.Terms
                       select new { s.Term_ID, s.TermName };

            comboboxTerm.DataSource = term;
            combobox.DisplayMember = "Term_Name";
            combobox.ValueMember = "Term_ID";

i want to convert the above query to a list<> such that i can set the list as the Datasource to comboboxTerm. That would enable me get access to comboboxTerm selectedValue in code.

Answer 1

Change it to:

var term = (from s in DB.Terms
                   select new { s.Term_ID, s.TermName }).ToList();

This will actually resolve your query as well, as by default you’re returning an IQueryable

BUT for the Data Source of the combobox, you’re best off using a dictionary, like so:

var term = (from s in DB.Terms
                   select new { s.Term_ID, s.TermName })
           .ToDictionary(s => s.Term_ID, s => s.TermName);

Then add the following to your combobox:

SelectedValuePath="Key" DisplayMemberPath="Value"