Remove islands (polygons)

Discussion created by yl899 on Apr 4, 2012
Latest reply on Feb 21, 2013 by mbeaudoin
Hi all. I have downloaded administrative boundaries from www.gadm.org.
I managed to create a feature layer using[Select Attribute].
Then, I want to remove the small islands and keep only the mainland.
The problem is, i have multipolygon in 1 shapefile, with different fields of same value, no matter where i click on the layer.
Any idea how can i remove the small islands and keep the mainland?

Many thanks.