'Declaration
 
Protected Overridable Sub OnPromptCharChanged( _
   ByVal oldValue As Char, _
   ByVal newValue As Char _
) 

'Usage
 
Dim instance As MaskedTextBox
Dim oldValue As Char
Dim newValue As Char
 
instance.OnPromptCharChanged(oldValue, newValue)

protected virtual void OnPromptCharChanged( 
   char oldValue,
   char newValue
)

Parameters

oldValue

newValue

Target Platforms: Windows 11, Windows 10, 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

MaskedTextBox Class
MaskedTextBox Members