C# code confusion of where clause

public interface ICrudService<T> where T: Entity, new()

What 开发者_Go百科is the meaning of "new()" at the end of the above code?

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new() means that T has to have a parameterless constructor.

This is a help to enable you to construct objects of type T in your generic class/method:

public T Create()
{
   return new T();
}