Book Image

Core Data iOS Essentials

By : Bintu Harwani, B. M. Harwani
Book Image

Core Data iOS Essentials

By: Bintu Harwani, B. M. Harwani

Overview of this book

Core Data is the essential ingredient in data driven iOS apps. It's used for storing, retrieving, and manipulating application data in databases, XML, and binary formats. It's an essential component for iPhone, iPod Touch, and iPad apps.Core Data Essentials provides a clear, readable guide to the most useful aspects of Core Data. Built around a realistic example app, the book showcases the most important aspects of Core Data development in the context of a complete, functioning app written in Objective C.The book starts with a tour of how the app works. Then you'll see how to easily display data using the Table View. You'll learn how to develop an appropriate data model that fits the needs of your app, then implement that model as updatable data objects. You'll see how to update data and build relationships between objects and learn how Core Data can work with search, and how to provide your users with friendly data editing features.
Table of Contents (19 chapters)
Core Data iOS Essentials
About the Author
About the Reviewers

Chapter 7. Updating and Searching Records of Customers

In this chapter, we will see how to modify the information of the customer is unlike the Editing feature in Chapter 6, Creating, Listing, Displaying, and Deleting Records of Customers, which was limited to deletion of records. We will see how to Update (modify) the information of the customers that is already stored with us. In the last chapter, we saw that when any customer's name is selected from the table view, we are navigated to a View that displays detailed information of the customer, which includes the customer's name, e-mail ID, and contact number. This information is displayed via non-editable Text Fields so that the user can just look at the information without being able to modify it. In this chapter, we will learn about a procedure to add an Edit button at the top of the View that displays information of the selected customer. The Edit button when selected will make the Text Fields (through which a customer's information...