OnTextChanged Method

'Declaration
 
Protected Overridable Sub OnTextChanged( _
   ByVal args As TextChangedEventArgs _
) 

protected virtual void OnTextChanged( 
   TextChangedEventArgs args
)

Parameters

args

An instance of the TextChangedEventArgs class.

Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

TextDocument Class
TextDocument Members
TextChanged event (TextDocument class)