An XML nodeset specifying a set of panes to show. This is a system generated value set up when you drag the splitter onto the design view.
Note: This value cannot be modified and is for information only.
 
Default value
document(")/*/lxml:data/lxml:splitter_panes\[@id='<unique id>'\] (this is equivalent to the current pane where the unique id is an automatically generated identifier.)
Valid values
Not Applicable. (This value is system maintained.)