当.NET反射器显示它在.NET Framework中完成时,为什么我不能将属性或索引器作为ref参数传递？

public class MyClass
{
    public int MyProperty { get; set; }
    public int this[int index] { get { return index * 2; } }
}

public static void MyFunction(ref int myProperty, ref int myIndexer)
{
    // Do something with the parameters
}

public static void Main()
{
    MyClass myObj = new MyClass();
    MyFunction(ref myObj.MyProperty, ref myObj[0]);
}

public static void MyFunction(int myProperty, int myIndexer)
{
    // Do something with the parameters
    myProperty = myProperty + 1;
    myIndexer = myIndexer * 2;
}

public static void Main()
{
    MyClass myObj = new MyClass();
    int myProperty = myObj.MyProperty;
    int myIndexer = myObj[0];
    MyFunction(myProperty, myIndexer);
    myObj.MyProperty = myProperty;
    myObj[0] = myIndexer;
}