sort list using property variable

Question

Suppose I have this list of process or any other object

List<Process> listProcess = new List<Process>();

I can sort it using this line listProcess.OrderBy(p => p.Id); But what if I have only string name of property obtained in runtime. I assume, I should use reflection to get the property object. Can I use orderby method or I should use Sort and then pass own comparer?

You can also use OrderBy with name. What exactly is your question here? — Arghya C, Oct 31 '15 at 18:55
Using Reflection maybe.. But the duplicate suggested by @DavidG solves your problem quite well. — Fᴀʀʜᴀɴ Aɴᴀᴍ, Oct 31 '15 at 18:56
@ArghyaC: Um, how can you use OrderBy with the name of a property, exactly? (Other than with reflection...) — Jon Skeet, Oct 31 '15 at 18:57
@JonSkeet Oh o! My bad! I thought OP has `string` value of property "name"! Yes, reflection is the answer. `list.OrderBy(o => o.GetType().GetProperty(propName).GetValue(o))` — Arghya C, Oct 31 '15 at 19:02

score 5 · Accepted Answer · answered Oct 31 '15 at 19:17

You can have a look at the post referred in the comment. Or, you can achieve that using simple reflection like this

var sortedList = list.OrderBy(o => o.GetType().GetProperty(propName).GetValue(o));

Where

List<object> list; //a list of any object(s)
string propName; //name of the property to be used in OrderBy

sort list using property variable

1 Answers1