Скачать или смотреть Xamarin Picker | Picker Control In Xamarin | Populate Xamarin Picker

Xamarin Forms Picker
The Picker view is a control for selecting a text item from a list of data.

The Xamarin.Forms Picker displays a short list of items, from which the user can select an item. Picker defines the following properties:

CharacterSpacing, of type double, is the spacing between characters of the item displayed by the Picker.
FontAttributes of type FontAttributes, which defaults to FontAtributes.None.
FontFamily of type string, which defaults to null.
FontSize of type double, which defaults to -1.0.
HorizontalTextAlignment, of type TextAlignment, is the horizontal alignment of the text displayed by the Picker.
ItemsSource of type IList, the source list of items to display, which defaults to null.
SelectedIndex of type int, the index of the selected item, which defaults to -1.
SelectedItem of type object, the selected item, which defaults to null.
TextColor of type Color, the color used to display the text, which defaults to Color.Default.
Title of type string, which defaults to null.
TitleColor of type Color, the color used to display the Title text.
VerticalTextAlignment, of type TextAlignment, is the vertical alignment of the text displayed by the Picker.

All of the properties are backed by BindableProperty objects, which means that they can be styled, and the properties can be targets of data bindings. The SelectedIndex and SelectedItem properties have a default binding mode of BindingMode.TwoWay, which means that they can be targets of data bindings in an application that uses the Model-View-ViewModel (MVVM) architecture. For information about setting font properties, see Fonts.

A Picker doesn't show any data when it's first displayed. Instead, the value of its Title property is shown as a placeholder on the iOS and Android platforms

Setting a Picker's ItemsSource Property
The Picker view is a control for selecting a text item from a list of data. This article explains how to populate a Picker with data by setting the ItemsSource property, and how to respond to item selection by the user.

Xamarin.Forms 2.3.4 has enhanced the Picker view by adding the ability to populate it with data by setting its ItemsSource property, and to retrieve the selected item from the SelectedItem property. In addition, the color of the text for the selected item can be changed by setting the TextColor property to a Color.
Populating a Picker with data

A Picker can be populated with data by setting its ItemsSource property to an IList collection. Each item in the collection must be of, or derived from, type object. Items can be added in XAML by initializing the ItemsSource property from an array of items:

Picker Control In Xamarin.Forms Application For Android
Picker control is a view control for picking an element in a list. The visual representation of a Picker control is similar to an entry control, but a Picker control appears in place of a keyboard.

Before reading this article, please go through the article How To Create And Use XAML Content Page In Xamarin Forms Application For Android And Universal Windows Platform

After reading this article, you will know how to add Picker Control in Xamarin.Forms Application for an Android and Universal Windows Platform with XAML and Visual C# in cross platform application development.

Populating Items in Xamarin Picker
This tutorial explains the ways of populating items for Xamarin Picker control.

Binding data source
Xamarin Picker control is bound to the external data source to display the data. It supports any collections that implements the IEnumerable interface.
To bind the data source in picker, set the SfPicker.ItemsSource property
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Xamarin Forms Picker | Picker Control In Xamarin | Populating Items in Xamarin Picker
Xamarin Forms Picker | Picker Control In Xamarin | Populating Items in Xamarin Picker
Xamarin Forms Picker | Picker Control In Xamarin | Populating Items in Xamarin Picker
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