A grid with checkbox selectors, with select-all enabled
			(top checkbox, and Ctrl/Cmd+A)
		
			
			
			
			
		
		
		 Tests for resetting columns (should not cause errors):
			
			
		
		A grid with radio selectors
		
			
			
		
		
		A grid with checkbox selectors, with select-all disabled, blank label in selector column
		
		A grid, initially without a selector column
		
		 Tests for resetting columns (should not cause errors,x and selectors should work):
			
			
		
		A grid with checkbox selectors and column sets
		
		A grid with multiple row selector columns
		
		A grid with multiple selector columns and no select all
		
		A grid with multiple radio selector columns
		
		A grid with a custom selector rendering function