Using Listpicker in Windows Phone 7

Introduction

ListPicker is a new control in the Silverlight Toolkit for Windows Phone. It is for user's to choose another item like Combobox but ListPicker has more features than a Combobox. When you have little item about 1->4 it'll show data as a Combobox and if more item Listpicker will show data as a ListBox.

In this article I will talk about Listpicker in Windows Phone.

Fundamental

First, you must install Silverlight tool for Windows Phone . you can download it here http://silverlight.codeplex.com/releases/view/71550

Now we're creating Windows Phone Application Project.



Next, we right click on References -> choose Add Refrences -> choose Microsoft.Phone.Controls.Toolkit :



Then we go to MainPage.xaml and built a sample User Interface but after that we declare

xmlns:toolkit="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone.Controls.Toolkit"

To use Control.

• Now we add some Control to MainPage, they're TextBlock,TextBox and ListPicker:
  
  
   
• To Use ListPicker we must Define ItemTemplate and FullModeItemTemplate :
   

     <phone:PhoneApplicationPage.Resources>

          <DataTemplate x:Name="lpkItemTemplate">

              <TextBlock Text="{Binding Country}" />

          </DataTemplate>

          <DataTemplate x:Name="lpkFullItemTemplate">

              <TextBlock Text="{Binding Country}" />

          </DataTemplate>

      </phone:PhoneApplicationPage.Resources>

Full XAML Code :

<phone:PhoneApplicationPage

    x:Class="ListPickerDemo.MainPage"

    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

    xmlns:phone="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone"

    xmlns:shell="clr-namespace:Microsoft.Phone.Shell;assembly=Microsoft.Phone"

    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"

    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"

    mc:Ignorable="d" d:DesignWidth="480" d:DesignHeight="768"

   

    xmlns:toolkit="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone.Controls.Toolkit"

   

    FontFamily="{StaticResource PhoneFontFamilyNormal}"

    FontSize="{StaticResource PhoneFontSizeNormal}"

    Foreground="{StaticResource PhoneForegroundBrush}"

    SupportedOrientations="Portrait" Orientation="Portrait"

    shell:SystemTray.IsVisible="True">

 

    <phone:PhoneApplicationPage.Resources>

        <DataTemplate x:Name="lpkItemTemplate">

            <TextBlock Text="{Binding Country}" />

        </DataTemplate>

        <DataTemplate x:Name="lpkFullItemTemplate">

            <TextBlock Text="{Binding Country}" />

        </DataTemplate>

    </phone:PhoneApplicationPage.Resources>

    <!--LayoutRoot is the root grid where all page content is placed-->

    <Grid x:Name="LayoutRoot" Background="Transparent">

        <Grid.RowDefinitions>

            <RowDefinition Height="Auto"/>

            <RowDefinition Height="*"/>

        </Grid.RowDefinitions>

 

        <!--TitlePanel contains the name of the application and page title-->

        <StackPanel x:Name="TitlePanel" Grid.Row="0" Margin="12,17,0,28">

            <TextBlock x:Name="ApplicationTitle" Text="MY APPLICATION" Style="{StaticResource PhoneTextNormalStyle}"/>

            <TextBlock x:Name="PageTitle" Text="ListPicker" Margin="9,-7,0,0" Style="{StaticResource PhoneTextTitle1Style}"/>

        </StackPanel>

 

        <!--ContentPanel - place additional content here-->

        <Grid x:Name="ContentPanel" Grid.Row="1" Margin="12,0,12,0">

            <Grid.RowDefinitions>

                <RowDefinition Height="Auto"/>

                <RowDefinition Height="Auto"/>

                <RowDefinition Height="Auto"/>

                <RowDefinition Height="Auto"/>

                <RowDefinition Height="Auto"/>

                <RowDefinition Height="*"/>

            </Grid.RowDefinitions>

            <TextBlock Text="Name" Margin="14,0,0,0"/>

            <TextBox Grid.Row="1" Name="txtName"/>

            <TextBlock Text="Ages " Grid.Row="2" Margin="14,0,0,0"/>

            <TextBox Name="txtAge" Grid.Row="3"/>

            <TextBlock Text="Country" Grid.Row="4" Margin="14,0,0,0" />

            <toolkit:ListPicker FullModeItemTemplate="{Binding lpkFullItemTemplate}"

                Grid.Row="5" ItemTemplate="{Binding lpkItemTemplate}"

                x:Name="lpkCountry"/>

            <Button Content="Submit" Grid.Row="5" Height="72" HorizontalAlignment="Left" Margin="284,87,0,0" Name="btnSubmit" Click="btnSubmit_Click"
             VerticalAlignment="Top" Width="160" />

        </Grid>

    </Grid>

</phone:PhoneApplicationPage>

And Now we go to MainPage.xaml.cs and create a Array String as a sample Data, and add is for ListPicker ItemSource Properties:

C# Code :
 

using System;

using System.Collections.Generic;

using System.Linq;

using System.Net;

using System.Windows;

using System.Windows.Controls;

using System.Windows.Documents;

using System.Windows.Input;

using System.Windows.Media;

using System.Windows.Media.Animation;

using System.Windows.Shapes;

using Microsoft.Phone.Controls;

 

namespace ListPickerDemo

{

    public partial class MainPage : PhoneApplicationPage

    {

        String[] Country = { "Viet Nam","Japan",

                              "China","USA",

                              "Poland","Brazil",

                              "Singapore","Philipin","Malaysia"};

        public MainPage()

        {

            InitializeComponent();

            this.lpkCountry.ItemsSource = Country;

        }

 

        private void btnSubmit_Click(object sender, RoutedEventArgs e)

        {

            String _Content = String.Format("Name: {0} \nAges: {1}\nCountry: {2}",

                txtName.Text,txtAge.Text,lpkCountry.SelectedItem);

            MessageBox.Show(_Content);

        }

    }

}

Now We Run Apps to view Resuilt :

• When you have a little Country
  
  
   

• And More Contry (FullModeItemTamplate will run):
  
  
   

• And when I Submit :