Book Image

Blazor WebAssembly by Example, 2e - Second Edition

By : Toi B. Wright
5 (1)
Book Image

Blazor WebAssembly by Example, 2e - Second Edition

5 (1)
By: Toi B. Wright

Overview of this book

Blazor WebAssembly helps developers build web applications without the need for JavaScript, plugins, or add-ons. With its continued growth in popularity, getting started with Blazor now can open doors to new career paths and exciting projects – and Blazor WebAssembly by Example will make your first steps easier. This is a project-based guide that will teach you how to build single-page web applications with Blazor, focusing heavily on the practical over the theoretical by providing detailed step-by-step instructions for each project. The author also includes a video for each project showing her following the step-by-step instructions, so readers can use them if they're unsure about any particular step. In this updated edition, you'll start by building simple standalone web applications and gradually progress to developing more advanced hosted web applications with SQL Server backends. Each project will cover a different aspect of the Blazor WebAssembly ecosystem, such as Razor components, JavaScript interop, security, event handling, debugging on the client, application state, and dependency injection. The book’s projects get more challenging as you progress, but you don’t have to complete them in order, which makes this book a valuable resource for beginners as well as those who just want to dip into specific topics. By the end of this book, you will have experience and lots of know-how on how to build a wide variety of single-page web applications with .NET, Blazor WebAssembly, and C#.
Table of Contents (15 chapters)
13
Other Books You May Enjoy
14
Index

Creating the Excel reader project

The Blazor WebAssembly application that we are going to build in this chapter is an Excel file reader. We will use the InputFile component to upload an Excel file. Then, we will use the Open XML SDK to loop through the rows of one of the worksheets in the Excel file. Finally, we will use the Virtualize component to render the data from the Excel file in an HTML table.

The following is a screenshot of the completed application:

Figure 9.6: Excel reader app

The build time for this project is approximately 45 minutes.

Project overview

The ExcelReader project will be created by using Microsoft’s Blazor WebAssembly App Empty project template to create an empty Blazor WebAssembly project. First, we will add the Open XML SDK to the project. Then, we will add a model to capture the information that we are reading from the Excel file. We will use an InputFile component to upload the Excel file. We will use the Open XML SDK to...