How do I execute a foreach lambda expression on ObservableCollection<T>?

Zain Shaikh picture Zain Shaikh · Mar 25, 2010 · Viewed 13.6k times · Source

How do I execute a foreach lambda expression on ObservableCollection<T>?

There is not method of foreach with ObservableCollection<T> although this method exists with List<T>.

Is there any extension method available?

Answer

JaredPar picture JaredPar · Mar 25, 2010

There is no method available by default in the BCL but it's straight forward to write an extension method which has the same behavior (argument checking omitted for brevity)

public static void ForEach<T>(this IEnumerable<T> enumerable, Action<T> action) {
  foreach ( var cur in enumerable ) {
    action(cur);
  }
}

Use case

ObservableCollection<Student> col = ...;
col.ForEach(x => Console.WriteLine(x.Name));