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

Executing code while debugging

When the execution of the application is stopped, you can easily check the values of the variables by moving the cursor over them. However, sometimes it may be useful to execute some parts of code, such as checking the length of a string. In such a case, you do not need to modify the application code and add some additional variables because you can use the Immediate Window feature that allows you to execute particular lines of code and present results. In this recipe, you will learn how to do this.

Getting ready

To complete this recipe, you need the project with two pages, represented by the MainPage and ProductsPage classes. It is necessary to pass a category identifier while navigating from MainPage to ProductsPage. You should start the debugging of the project and stop it at any breakpoint.

How to do it...

To execute some code while debugging, you need to perform the following steps:

  1. Open Immediate Window by navigating to Debug | Window | Immediate from the menu.

  2. Type an expression in Immediate Window and press Enter. The calculated result will be presented in the next line, as shown in the following screenshot:

How it works...

The example from the screenshot you just saw shows a result of the following expression in Immediate Window:


It is evaluated using the values of the variables from the current state of debugging. In the example, the formattedText variable is equal to Category #1 - Food & drinks., thus the string has 28 characters and such a result is shown in the window.

The next expression is as follows:


It presents the current value of the formattedText variable, but in the uppercase version.

See also

  • The Breakpoints-based debugging recipe

  • The Step-by-step debugging recipe

  • The Logging information while debugging recipe

  • The Creating a unit test and Running a set of tests recipes in Chapter 9, Testing and Submission