1. MIS 324 -- Professor Sandvig MIS 324 Professor Sandvig
12/4/2018
MVC Models
MIS 324
Professor Sandvig

2. Recap Photos exercise Controller: Handles http requests
Request includes:
controller name
action method name
Example: ~/photos/dahlia
Action method name optional
Defaults to “index”

3. Recap Controller Optional parameters ViewBag Give each object a name
Example:
photos/photoView?id=dahlia
Photos/photoView/dahlia
ViewBag
Passes values from controller to view
Give each object a name
Eg: ViewBag.photo = “dahlia”;

4. Today Will add simple model What is model How to define model
Benefits
How to define model
Accessing from controller
Passing to view

5. What is Model Model describes data Typically a real-world entity
Customer
Product
Order
Transaction
Etc.

6. Benefits of Models Pass all properties in a single object Validation
Pass one object
Rather than each property
Validation
Specify data type in model
required, length, format, , etc.
Easy!

7. Benefits of Models Visual Studio wizards Uses model to create forms
Includes Validation

8. How to Define Model
Add new class to model folder
Syntax:

9. Accessing Model from Controller
Need to add using statement
Points to “Models” namespace

10. Passing Model to from Controller

11. MIS 324 -- Professor Sandvig
12/4/2018
Summary
MVC Models
Define business entities
Employees
Customers
Products
All properties in single object
Pass as single object
Validation in definition
Visual Studio wizards