Select Contained within will select all objects in the target set that are entirely contained within an object in the source / argument box set. Select Containing will select all objects in the target set that completely contain any object in the source / argument box set.

Suppose we have a saved selection called Durango that selects the province of Durango in Mexico.
Select Contained within
![]()
Running Select Contained within selects the two points and the line that are entirely within Durango.

Select Containing
![]()
Suppose we have another layer in the map containing circular areas. Running Select Containing selects the large circular area that entirely contains Durango.

See Also