1. Forms

2. Use underlying tables n Owners form - add data to Owners table n Cats form - add data to Cats table n Record Source Property – Record source is a table or query e.g Bookings table

3. Data Model Diagram CatsOwners Bookings

4. Where forms can help n Data Entry e.g entered owners names etc. n Data validation - select from valid list n Calculations

5. Data Entry n Boxes on form n Type data in boxes n Data is added to fields in table – e.g cats names, owners first and last names

6. Data Validation n Combo Box object n Get data fields from Owners Table n Need to store Ownerid so box must be bound to Ownerid field n Ownerid is the Control Source Property of the object n Combo box displays pick list (Access jargon for a menu)

7. Calculations n Text box object n Expressions used as control source property n Derived from data in the table n Result displayed on the form - not stored in the table

8. Expressions n Combination of operators, constants, literal values, functions, and names of fields, controls, and properties that evaluates to a single value. n Examples - see Help, Index, Expressions, Examples of Expressions

9. Our example includes n arithmetic operators – multiplication (*) – Division (/) – Addition (+) – Subtraction (-) n can include field names from the record source table – e.g [NoOfCats]