'宣言 Public Event RegionChanged As System.EventHandler
'使用法 Dim instance As WarningForm Dim handler As System.EventHandler AddHandler instance.RegionChanged, handler
public event System.EventHandler RegionChanged
'宣言 Public Event RegionChanged As System.EventHandler
'使用法 Dim instance As WarningForm Dim handler As System.EventHandler AddHandler instance.RegionChanged, handler
public event System.EventHandler RegionChanged