Now, you can create a value holder and a ViewSubclass
instance, and
can tie them together:
Workspace
H := ValueHolder new.
V := ViewSubclass new.
V model: H.
Then, setting the value
instance variable in the value holder causes
an update:
message to be sent to the view:
Workspace H value: 1. Transcript Sample viewer receiving #value update message Value, determined in viewer, is 1