Dim pipeNode As NineRays.Windows.Forms.Data.Node = Me.lstLinePipe.Columns.Items(1).GetValue(3)
pipeNode.Value = pipeName

[VB.Net]
Dim pipeNode As NineRays.Windows.Forms.Data.Node = Me.lstLinePipe.Rows.Items(1)
' here you can use pipeNode("someColumnFieldName") = pipeName where
' "someColumnFieldName" is field name associated with column
' or
' pipeNode(someColumn) = pipeName where someColumn is some Column
' class instance
pipeNode(someColumn) = pipeName

[VB.Net]
Private Sub FlyGrid_NodeSelectedChange(ByVal sender As Object, ByVal node As NineRays.Windows.Forms.Data.NodeBase) Handles FlyGrid.NodeSelectedChange
    'WARNING: This event handler notifies about Node.Selected changes, when node is
    'selected and when selected node is unselected.
    If (node.Selected) Then
      Dim text As String = "simon"    
      node("Column1") = text
    End If
End Sub