1) Add new: click on add new then goto form page of invoice.
2) show: show how many data show in single page.
3) search: in this section you can search entire list.
4) in this section show invoice, client name, issue date, due date, status and action.
5) edit: click on this button goto form page
6) view: click on this button goto invoice view for particular record
7) delete: click on this button delete particular record.
8) paggination: here you can go previous and next page.
Invoice Add and Edit Form
1) invoice: in this section select any case, issue date and due date, invoice number automatically generated, select category, select invoice status, reference number, select tax type