Gets the level of the current index entry. The top-level entries' level is 0, sub-entries' level is 1, and so on. If the current index entry has not been added to a IndexEntry.RenderIndex object or to a nested entry of such object, this property returns -1. or to an IndexEntry

'宣言
 
Public ReadOnly Property Level As System.Integer

'使用法
 
Dim instance As IndexEntry
Dim value As System.Integer
 
value = instance.Level

public System.int Level {get;}