No, CJC Canon 7(B)(2) provides that campaign committees should solicit public statements of support from lawyers and other persons.

Is that different from the candidate doorbelling or appearing at gatherings and asking the attendees to vote for the candidate and to encourage their friends and family members to do the same thing?

A judicial candidate may doorbell and attend public gatherings and ask people to vote for the judicial candidate because those are different than soliciting public statements of support.

The candidate may also ask that they encourage friends and family members to support the candidate.