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Color de fondo alternativo en Listview XAML

Question

Estoy usando un listView basado en itemTemplate. Así que necesito en mi plantilla para alternar el color de fondo:
- primera fila: blanco
- segunda fila: gris
- tercera fila: blanco
- adelante: gris

esta es mi plantilla

     <DataTemplate x:Key="ItemFlight" >
        <Grid>
            <Grid.ColumnDefinitions>
                <ColumnDefinition Width="60"/>
                <ColumnDefinition Width="*"/>
            </Grid.ColumnDefinitions>
            <Border Background="#28AADB" Margin="2">
                <Image Source="{Binding Path=IsArrival, Converter={StaticResource BooleanToImageDisplayConverter}}" Width="30" Height="30" VerticalAlignment="Center" Margin="5"/>
            </Border>
            <Grid Grid.Column="1" VerticalAlignment="Center">
                <Grid.ColumnDefinitions>
                    <ColumnDefinition Width="4*"/>
                    <ColumnDefinition Width="3*"/>
                    <ColumnDefinition Width="3*"/>
                    <ColumnDefinition Width="6*"/>
                </Grid.ColumnDefinitions>
                <Grid.RowDefinitions>
                    <RowDefinition Height="*"/>
                    <RowDefinition Height="*"/>
                </Grid.RowDefinitions>

                <TextBlock Text="{Binding FlightName}" FontWeight="Bold" Grid.Column="0" Grid.Row="0"  Margin="10" Style="{StaticResource MyTextBlockStyle}"/>

                <TextBlock Text="{Binding ArrivalOrDepartDateTime, Converter={StaticResource DateTimeConverter}}"  FontWeight="Bold" Grid.Column="0" Grid.Row="1" Margin="10" Style="{StaticResource MyTextBlockStyle}"/>

                <TextBlock Text="{Binding Terminal, Converter={StaticResource StringUpperConverter}}" Grid.Column="1" Grid.Row="0" Margin="10"  Visibility="{Binding Path=IsArrival,Converter={StaticResource BooleanToVisibilityReverseConverter}}" Style="{StaticResource MyTextBlockStyle}"/>
                <TextBlock Text="{Binding CityInfo.Name}" Grid.Column="1" Grid.Row="0" Margin="10" Visibility="{Binding Path=IsArrival,Converter={StaticResource BooleanToVisibilityConverter}}" Style="{StaticResource MyTextBlockStyle}"/>

                <TextBlock Text="{Binding DepartureTime}"  Grid.Column="1" Grid.Row="1" Margin="10" Style="{StaticResource MyTextBlockStyle}"/>

                <TextBlock Text="{Binding CityInfo.Name}" Grid.Column="2" Grid.Row="0" Margin="10" Style="{StaticResource MyTextBlockStyle}"  Visibility="{Binding Path=IsArrival,Converter={StaticResource BooleanToVisibilityReverseConverter}}"/>
                <TextBlock Text="{Binding Terminal, Converter={StaticResource StringUpperConverter}}"  Visibility="{Binding Path=IsArrival,Converter={StaticResource BooleanToVisibilityConverter}}" Grid.Column="2" Grid.Row="0" Margin="10" Style="{StaticResource MyTextBlockStyle}"/>

                <TextBlock Text="{Binding ArrivalTime}" Grid.Column="2" Grid.Row="1" Margin="10" Style="{StaticResource MyTextBlockStyle}"/>

                <TextBlock Text="{Binding Status}" Grid.Column="3" Grid.Row="0" Grid.RowSpan="2" Margin="15" Style="{StaticResource MyTextBlockStyle}"  Foreground="#EA6A1E" FontSize="20" TextWrapping="Wrap" />

            </Grid>
        </Grid>
    </DataTemplate>

¿Cómo puedo hacer esto por favor?

Answer 1

Debe usar la propiedad AlternationCount y funciona en ListBox, ListView o cualquier otro control que herede de ItemsControl. La definición de propiedad y dos ejemplos se incluyen en
https://msdn.microsoft.com/en-us/library/system.windows.controls.itemscontrol.alternationcount%28v=vs.110%29.aspx )

Answer 2

Intenté esto y funciona para mí.

<Window x:Class="TryResponses.MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:vm="clr-namespace:TryResponses"
    xmlns:system="clr-namespace:System;assembly=mscorlib"
    Title="MainWindow" Height="350" Width="525">
<Window.Resources>
    <vm:MainWindowViewModel x:Key="MainWindowViewModel" />
</Window.Resources>
<Grid Background="LightGray" DataContext="{StaticResource MainWindowViewModel}">
    <Grid.Resources>
        <Style TargetType="ListViewItem">
            <Style.Triggers>
                <Trigger Property="ItemsControl.AlternationIndex"  Value="0">
                    <Setter Property="Background" Value="LightBlue" />
                </Trigger>
                <Trigger Property="ItemsControl.AlternationIndex"  Value="1">
                    <Setter Property="Background" Value="LightGray" />
                </Trigger>
            </Style.Triggers>
        </Style>
        <DataTemplate DataType="system:String">
            <!-- put your data template here -->
        </DataTemplate>
    </Grid.Resources>
    <ListView ItemsSource="{Binding Items}" AlternationCount="2" />
</Grid>

Espero que esto sea de ayuda.

Saludos

Claude