'Declaration
 
Protected Overrides Function OnValidateCustomFormatString( _
   ByVal value As String _
) As Boolean

'Usage
 
Dim instance As DateTimeUpDown
Dim value As String
Dim value As Boolean
 
value = instance.OnValidateCustomFormatString(value)

protected override bool OnValidateCustomFormatString( 
   string value
)

Parameters

value

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

DateTimeUpDown Class
DateTimeUpDown Members
Base Implementation in OnValidateCustomFormatString