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A ListView is a common user interface element in mobile apps that allows you to display a scrolling list of items. In Xamarin.Forms, a ListView is a view that can be used to display a collection of items in a vertically scrolling list. It is a powerful and flexible element that can be used to display data in many different ways.
When using a ListView in Xamarin.Forms, you first need to create a collection of items that you want to display. This collection can be a list of objects or a data source such as a database or a web service.
Once you have your collection of items, you can create a ListView and set its ItemsSource property to the collection. This will tell the ListView to display the items in the collection.
Each item in the collection is represented by a cell in the ListView. By default, the ListView will use a basic text cell that displays the text of the item. However, you can customize the appearance of the cells by setting the ItemTemplate property of the ListView. The ItemTemplate property allows you to specify a custom template for each cell, using XAML markup or C# code.
The ListView also allows you to specify how the items in the list are arranged. For example, you can use the VerticalOptions and HorizontalOptions properties to control the alignment of the list within its parent container. You can also use the SeparatorVisibility property to control whether or not a separator line is shown between the items.
The ListView also allows you to handle user interactions with the items in the list. For example, you can handle the ItemTapped event to respond when a user taps on an item. You can also handle the ItemSelected event to respond when a user selects an item.
In addition to the basic functionality, the ListView also offers more advanced features such as pull-to-refresh, grouping, and sorting. These features can be added by using the appropriate properties and methods.
In summary, ListViews are a powerful and flexible way to display a collection of items in Xamarin.Forms. They allow you to customize the appearance of each item using custom templates. They also allow you to handle user interactions and offers advanced features such as pull-to-refresh, grouping and sorting. With a ListView, you can create a scrolling list of items that is easy to navigate and interact with.
Cookbook – Xamarin for Beginners – Chapter 09
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