Changelog A.E.: Update 4

Changelog update 4

Form1.cs

Instances of Cars and Lenders are getting generated in the Form1.cs from

the loaded DataSet and are being stored in lists.

- declared Lists for saving instances of Lenders and Cars
- createInstances() added
- reloadInstances() added

Lender.cs

- declared a list<string> to store license tags of lended cars
- insertLendedCars() added