public float this[
	int index1,
	int index2
] { get; set; }

Public Default Property Item ( 
	index1 As Integer,
	index2 As Integer
) As Single
	Get
	Set

public:
virtual property float default[int index1, int index2] {
	float get (int index1, int index2) sealed;
	void set (int index1, int index2, float value) sealed;
}

abstract Item : float32 with get, set
override Item : float32 with get, set