You must bring evidence to court to prove your claim. Evidence, or exhibits, can include, for example, testimony from witnesses who are knowledgeable about your claim, photos, documents, printed emails, printed text messages, diagrams, contracts, and receipts.
You are also required to electronically file any printed or photographic exhibits in your case at least a day before the date of your hearing, unless you are exempt from electronic filing. Either way, you should bring copies of your exhibits to court.