Book Image

Windows Application Development Cookbook

By : Marcin Jamro
Book Image

Windows Application Development Cookbook

By: Marcin Jamro

Overview of this book

Need to ensure you can always create the best Windows apps regardless of platform? What you need are solutions to the biggest issues you can face, so you can always ensure you’re making the right choices and creating the best apps you can. The book starts with recipes that will help you set up the integrated development environment before you go ahead and design the user interface. You will learn how to use the MVVM design pattern together with data binding, as well as how to work with data in different file formats. Moving on, you will explore techniques to add animations and graphics to your application, and enable your solution to work with multimedia content. You will also see how to use sensors, such as an accelerometer and a compass, as well as obtain the current GPS location. You will make your application ready to work with Internet-based scenarios, such as composing e-mails or downloading files, before finally testing the project and submitting it to the Windows Store. By the end of the book, you will have a market-ready application compatible across different Windows devices, including smartphones, tablets, and desktops.
Table of Contents (17 chapters)
Windows Application Development Cookbook
About the Author
About the Reviewer

Updating data in a SQLite database

Apart from inserting data to a table, it is often necessary to update values. Of course, such an operation is also supported in the case of UWP applications using a SQLite database. In this recipe, you will learn how to achieve this goal.

As an example, you will modify the project from the previous recipe by allowing a user to add and edit entries. So, the application will contain almost all the features necessary to become a real offline blog, in which data is stored in the local database.

Getting ready

To step through this recipe, you need the project from the previous recipe.

How to do it...

To modify the preceding example to allow a user to add or edit data of entries, perform the following steps:

  1. Modify the code of the MainViewModel class, in the MainViewModel.cs file, by adding the field with an identifier of the currently edited entry (or 0 if the entry is currently being added, named _entryId). In addition to this, add properties that represent the title...