GridEX: Set column default values on the fly.

GridEXDefaultValues.vb

'root table
Private Sub CampaignsGridEX_SelectionChanged(sender As Object, e As EventArgs) Handles CampaignsGridEX.SelectionChanged
    Me.TblVitalSignWorkLogGridEX.RootTable.Columns("LogDate").DefaultValue = Now
End Sub

'heierarchical tables
Private Sub CampaignsGridEX_SelectionChanged(sender As Object, e As EventArgs) Handles CampaignsGridEX.SelectionChanged
    Me.CampaignsGridEX.Tables("Campaigns").Columns("RecordInsertedDate").DefaultValue = Now
    Me.CampaignsGridEX.Tables("Campaigns").Columns("RecordInsertedBy").DefaultValue = My.User.Name
End Sub