Added try/catch to stop crash that occurs if user exits Extension Manager before the listview is set.
Added try/catch to stop crash that occurs if user exits Extension Manager before the listview is set.
bdgza/DotSpatial,pergerch/DotSpatial,DotSpatial/DotSpatial,JasminMarinelli/DotSpatial,CGX-GROUP/DotSpatial,donogst/DotSpatial,CGX-GROUP/DotSpatial,JasminMarinelli/DotSpatial,CGX-GROUP/DotSpatial,swsglobal/DotSpatial,pedwik/DotSpatial,bdgza/DotSpatial,JasminMarinelli/DotSpatial,pergerch/DotSpatial,swsglobal/DotSpatial,pergerch/DotSpatial,pedwik/DotSpatial,DotSpatial/DotSpatial,pedwik/DotSpatial,bdgza/DotSpatial,donogst/DotSpatial,donogst/DotSpatial,swsglobal/DotSpatial,DotSpatial/DotSpatial