Preventing default event actions

In this recipe, we explore the mechanics of browsers automatically executing specific actions in response to user events. Default event actions can include form submission when the return key is pressed or navigating to a link’s URL when it’s clicked. However, there are scenarios in Blazor applications where you might need to intercept these automatic behaviors to control the user experience. Whether to manage form validation, confirm user intentions, or manage dynamic content updates without refreshing the page, preventing default actions becomes essential. I will guide you through stopping these default behaviors programmatically within your application.

Let’s implement a fast ticket creation feature, where we will intercept and apply custom logic with each key store a user makes.

Getting ready

Before exploring how to intercept and prevent default event actions, do the following:

• Create a Chapter03/Recipe04 directory...