C#: Generic types that have a constructor?

Question

I have the following C# test code:

  class MyItem
  {
    MyItem( int a ) {}
  }

  class MyContainer< T >
    where T : MyItem, new()
  {
    public void          


        

Answer 1

There's no such generic constraint, so it's not possible directly (this is a CLR limitation). If you want this, you have to provide a factory class (which has a parameterless constructor), and pass it as a second generic type parameter.