DataTrigger, ListBox and user object : ListBox Data « Windows Presentation Foundation « C# / CSharp Tutorial

1. C# / CSharp Tutorial
2. Windows Presentation Foundation
3. ListBox Data

<Window x:Class="DataTriggerSample.Window1"
  xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
  xmlns:c="clr-namespace:DataTriggerSample"
  Title="DataTriggerSample" Height="300" Width="300">
  <Window.Resources>
    <c:People x:Key="PeopleData"/>

    <Style TargetType="{x:Type ListBoxItem}">
      <Style.Triggers>
        <DataTrigger Binding="{Binding Path=Name}" Value="A">
          <Setter Property="Background" Value="Yellow" />
        </DataTrigger>
        <MultiDataTrigger>
          <MultiDataTrigger.Conditions>
            <Condition Binding="{Binding Path=Name}" Value="S" />
          </MultiDataTrigger.Conditions>
          <MultiDataTrigger.Setters>
            <Setter Property="Background" Value="LightGreen" />
          </MultiDataTrigger.Setters>
        </MultiDataTrigger>
      </Style.Triggers>
    </Style>

    <DataTemplate DataType="{x:Type c:Person}">
      <Canvas Width="260" Height="20">
        <TextBlock FontSize="12" Width="130" Canvas.Left="0" Text="{Binding Path=Name}"/>
      </Canvas>
    </DataTemplate>
  </Window.Resources>

  <StackPanel>
    <TextBlock FontSize="18" Margin="5" FontWeight="Bold"
      HorizontalAlignment="Center">Data Trigger Sample</TextBlock>
    <ListBox Width="250" HorizontalAlignment="Center" Background="White"
      ItemsSource="{Binding Source={StaticResource PeopleData}}"/>
  </StackPanel>

</Window>
//File:Window.xaml.cs

using System;
using System.Collections.Generic;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;
using System.Collections.ObjectModel;

namespace DataTriggerSample
{
    public partial class Window1 : System.Windows.Window
    {
        public Window1()
        {
            InitializeComponent();
        }
    }

    public class Person
    {
        private string _name;
        public string Name
        {
            get { return _name; }
            set { _name = value; }
        }

        public Person(string name)
        {
            this._name = name;
        }
    }

    public class People : ObservableCollection<Person>
    {
        public People()
        {
            Add(new Person("A"));
            Add(new Person("B"));
            Add(new Person("C"));
        }
    }

}

24.32.ListBox Data
	24.32.1.	Convert the contents of a ListBoxItem to an instance of GridLength by using GridLengthConverter
	24.32.2.	Use the FontSizeConverter class to convert the content of a ListBoxItem to a value that represents the size of a font.
	24.32.3.	Display Bounded objects onto ListBox
	24.32.4.	Use DataTemplate in ListBox
	24.32.5.	ListBox binds to the people collection, and sets the DataTemplate to use for displaying each item
	24.32.6.	Without specifying a DataTemplate, the ListBox displays a list of names.
	24.32.7.	Convert contents of a ListBoxItem to an instance of Thickness by using the ThicknessConverter
	24.32.8.	Convert contents of a ListBoxItem to an instance of Thickness by using the BrushConverter
	24.32.9.	DataTrigger, ListBox and user object
	24.32.10.	Select Product Page Function
	24.32.11.	Create ListBox and Add string as the ListBoxItem
	24.32.12.	ListBox of Color Values
	24.32.13.	ListBox of Color Shapes