Gets or sets data index (e.g. XData) this attribute corresponds to.

When Element schema gets instantiated on existing entity, it's data part is usually stored in indexed manner. If DataIndex equals to 0 it indicates that data doesn't get serialized upon the entity itself (see Expression). It's important to keep all data indexes greater than 0 in a row - do not skip index numbers.

Since data indicies are persistant, change them sparingly throughout different versions of an object model.

public int DataIndex { get; set; }

Public Property DataIndex As Integer
	Get
	Set

public:
property int DataIndex {
	int get ();
	void set (int value);
}

member DataIndex : int with get, set