call a function for each value in a generic c# collection [duplicate]

Answer 1

As other posters have noted, you can use List<T>.ForEach.

However, you can easily write an extension method that allows you to use ForEach on any IEnumerable<T>

public static void ForEach<T>(this IEnumerable<T> source, Action<T> action)
{
    foreach(T item in source)
        action(item);
}

Which means you can now do:

myList.Where( ... ).ForEach( ... );

Answer 2

You can use the ForEach method:

MSDN:

http://msdn.microsoft.com/en-us/library/bwabdf9z.aspx