VistaDB 6
VistaDB.DDA Namespace / DDAEventDelegate Delegate
EventDelegate object
New row data in 'before' eventDelegates or current row data in 'after' eventDelegates


In This Topic
    DDAEventDelegate Delegate
    In This Topic
    Delegate method called by DDA during an event modification on tables
    Syntax
    'Declaration
     
    
    Public Delegate Function DDAEventDelegate( _
       ByVal eventDelegate As IVistaDBDDAEventDelegate, _
       ByVal row As IVistaDBRow _
    ) As System.Exception
    'Usage
     
    
    Dim instance As New DDAEventDelegate(AddressOf HandlerMethod)
    public delegate System.Exception DDAEventDelegate( 
       IVistaDBDDAEventDelegate eventDelegate,
       IVistaDBRow row
    )

    Parameters

    eventDelegate
    EventDelegate object
    row
    New row data in 'before' eventDelegates or current row data in 'after' eventDelegates

    Return Value

    User's exception to markup proceed status. If null the modification process continues.
    Requirements

    Target Platforms: 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

    See Also