Control property to the specific control type and access the members directly. For more information, see the example code in the T: System. The following code example illustrates how to handle this event to change the P: System. Steps: Private Sub Data Grid View1_Cell Validating(By Val sender As System. Is In Edit Mode Then Dim c As Control = Data Grid View1.

Add(New Course With ) End Sub End Class Public Class Course Implements IEditable Object, INotify Property Changed Private _name As String Public Property Name As String Get Return _name End Get Set(By Val value As String) If _name = value Then Return _name = value On Property Changed("Name") End Set End Property Private _number As Integer Public Property Id As Integer Get Return _number End Get Set(By Val value As Integer) If _number = value Then Return _number = value On Property Changed("Id") End Set End Property Private _start Date As Date Time Public Property Start Date As Date Time Get Return _start Date End Get Set(By Val value As Date Time) If _start Date = value Then Return _start Date = value On Property Changed("Start Date") End Set End Property Private _end Date As Date Time Public Property End Date As Date Time Get Return _end Date End Get Set(By Val value As Date Time) If _end Date = value Then Return _end Date = value On Property Changed("End Date") End Set End Property #Region "IEditable Object" Private backup Copy As Course Private in Edit As Boolean Public Sub Begin Edit() Implements IEditable Object. End Date End Sub Public Sub End Edit() Implements IEditable Object.You can handle this event to perform custom initialization of the editing control when a cell enters edit mode. Use a 'Raise Event' statement to raise an event This is because if you traslate "literally" the code from: editing Box. Forms; namespace daniweb if you use you will get an error: Public Event Key Press...' is an event, and cannot be called directly.