how to allow the user to choose how to sort his list using a variable?

Question

the information that the user enters can be sorted in many ways ascending and descending and i\'m trying to make the user choose how he want to see the data:

so is there

Answer 1

As I assume, el is materialized(i.e., for example, it is not just entry point to database), so you can use reflection:

var sort = emsort.Text;
PropertyInfo property = null;
var sortedData = el.Select(i => new { i.ID, i.FullName })
     .OrderBy(x => 
     {
          property = property ?? x.GetType().GetProperty(sort);
          return property.GetValue(x);
     }).ToList();