[RESOLVED] How do I highlight a single listview gridline?

[gracehskuo]

please help, How do I highlight a single listview gridline?And how to make the checkboxes become disable after the checkboxes was Clicked?

This is the current code:

Private Sub ListView1_ItemCheck(ByVal Item As MSComctlLib.ListItem)
If ListView1.CheckBoxes = True Then
     ListView1.Gridlines = True
     FrmLat.Show   
End If
End Sub

please help.THANKS!