extends StyleSelector to create your own style selector : Style « Windows Presentation Foundation « C# / C Sharp

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C# / C Sharp » Windows Presentation Foundation » StyleScreenshots 
extends StyleSelector to create your own style selector
extends StyleSelector to create your own style selector
  
<Window x:Class="WpfApplication1.Window1"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="clr-namespace:WpfApplication1;assembly="
    Title="WPF" Height="248" Width="128">
    <Window.Resources>
        <local:Countries x:Key="countries"/>
        <Style x:Key="AlternateStyle">
            <Setter Property="ListBoxItem.Background" Value="LightGray"/>
        </Style>
    </Window.Resources>
    <Grid>
        <ListBox DisplayMemberPath="Name" ItemsSource="{Binding Source={StaticResource countries}}" >
            <ListBox.ItemContainerStyleSelector>
                <local:AlternatingRowStyleSelector AlternateStyle="{StaticResource AlternateStyle}" />
            </ListBox.ItemContainerStyleSelector>
        </ListBox>
    </Grid>
</Window>
//File:Window.xaml.cs
using System.Windows;
using System.Windows.Controls;
using System.Collections.ObjectModel;
namespace WpfApplication1
{
    public class AlternatingRowStyleSelector : StyleSelector
    {
        public Style DefaultStyle
        {
            get;
            set;
        }

        public Style AlternateStyle
        {
            get;
            set;
        }

        private bool isAlternate = false;

        public override Style SelectStyle(object item, DependencyObject container)
        {
            Style style = isAlternate ? AlternateStyle : DefaultStyle;

            isAlternate = !isAlternate;

            return style;
        }
    }

    public class Country
    {
        private string name;
        private Continent continent;

        public Country(string name, Continent continent)
        {
            this.name = name;
            this.continent = continent;
        }

        public string Name
        {
            get
            {
                return name;
            }
            set
            {
                name = value;
            }
        }

        public Continent Continent
        {
            get
            {
                return continent;
            }
            set
            {
                continent = value;
            }
        }
    }
    public enum Continent
    {
        Europe,
        NorthAmerica,
    }
    public class Countries : Collection<Country>
    {
        public Countries()
        {
            this.Add(new Country("Great Britan", Continent.Europe));
            this.Add(new Country("USA", Continent.NorthAmerica));
            this.Add(new Country("Canada", Continent.NorthAmerica));
        }
    }
}

   
    
  
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