传递类型参数并声明列表

Question

public static List<customModel> getList(type customModel)
{ 
  List<customModel> tempList = new List<customModel>(10);
  return tempList;
}

Is it possible to return a list of type that is passed from somewhere else? I have been doing my own project and notice that if there is any way to do this, my code will be much simpler.

Answer 1

Do you mean by using generics like this:

public static List<T> getList<T>()
{ 
  List<T> tempList = new List<T>(10);
  return tempList;
}

Which you can call like this:

var newList = getList<customModel>();

or prior to C# 3.0 (where var is not available):

List<customModel> newList = getList<customModel>();

---

The problem is, you could just as easily do this instead:

var newList = new List<customModel>(10);

Answer 2

Use a generic:

public static List<T> getList<T>()
{
    return new List<T>(10);
}

Call it like this:

var myList = getList<int>();