CODEWITHSUNDEEP
c#asp.net
Sesen
Sesen

Reputation: 372

Sorting an object list

I am keeping a list of objects in a List(). I want to sort this list by a property of the object.

For example, say the object is a Messsage and message has: content, date, header, ...

I want to sort the list by the message's date.

Is there any List method or any other method that makes this sort easy?

Thanks.

Upvotes: 0

Views: 92

Answers (3)

Bob Vale
Bob Vale

Reputation: 18474

If you are using generics (ie using List) you can use the Sort method MSDN

See my answer ot this question for out to create an extension method that lets you do 

myList.SortBy(x=>x.Date)

Upvotes: 0

Petar Ivanov
Petar Ivanov

Reputation: 93080

Yeah, use sort. If your list is l:

l.Sort((a,b) => {
    if (a == b) return 0;
    if (a == null) return -1;
    if (b == null) return 1;

    return a.Date.CompareTo(b.Date)
});

This assumes that the date property is of type that implements CompareTo().

Upvotes: 2

Haris Hasan
Haris Hasan

Reputation: 30127

You can implement IComparer<YourObject> and use that comparer for sorting

Upvotes: 0

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