Getting Started with List Picker for Xamarin

This article will guide you through the steps needed to add a basic RadListPicker control in your application.

1. Setting up the app

Take a look at these articles and follow the instructions to setup your app:

2. Adding the required Telerik references

You have two options:

  • Add the Telerik UI for Xamarin Nuget packages following the instructions in Telerik NuGet package server topic.

  • Add the references to Telerik assemblies manually, check the list below with the required assemblies for RadListPicker component:

Platform Assemblies
Portable Telerik.XamarinForms.Input
Telerik.XamarinForms.Common.dll
Telerik.XamarinForms.Primitives.dll
Telerik.XamarinForms.DataControls.dll
Telerik.XamarinForms.SkiaSharp.dll
Android Telerik.XamarinForms.Input
Telerik.XamarinForms.Common.dll
Telerik.XamarinForms.Primitives.dll
Telerik.XamarinForms.DataControls.dll
Telerik.XamarinForms.SkiaSharp.dll
iOS Telerik.XamarinForms.Input
Telerik.XamarinForms.Common.dll
Telerik.XamarinForms.Primitives.dll
Telerik.XamarinForms.DataControls.dll
Telerik.XamarinForms.SkiaSharp.dll
UWP Telerik.XamarinForms.Input
Telerik.XamarinForms.Common.dll
Telerik.XamarinForms.Primitives.dll
Telerik.XamarinForms.DataControls.dll
Telerik.XamarinForms.SkiaSharp.dll

3. Adding RadListPicker control

You could use one of the following approaches:

Drag the control from the Toolbox.

Take a look at the following topics on how to use the toolbox:

Create the control definition in XAML or C#.

The snippet below shows a simple RadListPicker definition:

<telerikInput:RadListPicker Placeholder="Pick a name!" 
                            ItemsSource="{Binding Items}" 
                            DisplayMemberPath="FullName">
    <telerikInput:RadListPicker.BindingContext>
        <local:ViewModel/>
    </telerikInput:RadListPicker.BindingContext>
    <telerikInput:RadListPicker.ItemTemplate>
        <DataTemplate>
            <Label Text="{Binding Name}" 
                   HorizontalTextAlignment="Center" 
                   VerticalTextAlignment="Center"/>
        </DataTemplate>
    </telerikInput:RadListPicker.ItemTemplate>
</telerikInput:RadListPicker>
this.BindingContext = new ViewModel();
var listPicker = new RadListPicker()
{
    Placeholder = "Pick a name!",
    ItemTemplate = new DataTemplate(() =>
    {
        var label = new Label
        {
            VerticalTextAlignment = TextAlignment.Center,
            HorizontalTextAlignment = TextAlignment.Center
        };
        label.SetBinding(Label.TextProperty, new Binding(nameof(Person.Name)));

        return label;
    }),
    DisplayMemberPath = "FullName"
};
listPicker.SetBinding(RadListPicker.ItemsSourceProperty, new Binding("Items"));

here is a sample definition of the ViewModel:

public class ViewModel
{
    public ViewModel()
    {
        this.Items = new ObservableCollection<Person>()
        {
            new Person("Freda","Curtis"),
            new Person("Jeffery","Francis"),
            new Person("Ema","Lawson"),
            new Person("Niki","Samaniego"),
            new Person("Jenny","Santos"),
            new Person("Eric","Wheeler"),
            new Person("Emmett","Fuller"),
            new Person("Brian","Johnas"),
        };
    }

    public ObservableCollection<Person> Items { get; set; }
}

and the Business model:

public class Person
{
    public Person(string name, string lastName)
    {
        this.Name = name;
        this.LastName = lastName;
    }

    public string Name { get; set; }

    public string LastName { get; set; }

    public string FullName
    {
        get
        {
            return $"{this.Name} {this.LastName}";
        }
    }
}

In addition to this, you need to add the following namespace:

xmlns:telerikInput="clr-namespace:Telerik.XamarinForms.Input;assembly=Telerik.XamarinForms.Input"
using Telerik.XamarinForms.Input;

This is the result:

List Picker

SDK Browser and QSF applications contain different examples that show RadListPicker's main features. You can find the applications in the Examples and QSF folders of your local Telerik UI for Xamarin installation.

See Also

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