Xamarin Certification Xamarin.Forms 3

Question 1

What is the role of a DataTemplateSelector in Xamarin.Forms?

Accepted Answer

Selects a different DataTemplate based on the bound data item at runtime

Answer

DataTemplateSelector allows you to choose among multiple DataTemplates dynamically based on the data object being rendered.

Question 2

Which Xamarin.Forms class is the base for pages that contain a single child view?

Accepted Answer

ContentPage

Answer

ContentPage is the most commonly used page type and hosts a single root view through its Content property.

Question 3

What does the Padding property on a Layout control in Xamarin.Forms control?

Accepted Answer

The space between the layout boundary and its children

Answer

Padding defines the inner spacing between a layout's edges and the content area where children are placed.

Question 4

In Xamarin.Forms, which navigation method pushes a page modally onto the navigation stack?

Accepted Answer

Navigation.PushModalAsync

Answer

PushModalAsync presents a page modally, typically covering the entire screen without a navigation bar.

Question 5

Which Xamarin.Forms control is best suited for accepting multi-line text input from the user?

Accepted Answer

Editor

Answer

Editor is designed for multi-line text input, while Entry is limited to a single line.

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