Написать свойство общее для всех контроллов - C# WPF - Ответ 3344292

<Window x:Class="MyFilm.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
        xmlns:local="clr-namespace:MyFilm"
        Title="MainWindow" Height="350" Width="525"> 
 
    <Grid local:MyHelper.MouseOver="True">
        
        <Grid.Resources>
            <Style TargetType="TextBlock" x:Key="MainText" >
                <Setter Property="Margin" Value="3,0"/>
                <Setter Property="FontSize" Value="16"/>
                <Setter Property="Foreground" Value="Blue"/>
            </Style>
            <Style TargetType="TextBlock" x:Key="SmallText" >
                <Setter Property="Margin" Value="3,0"/>
                <Setter Property="TextWrapping" Value="WrapWithOverflow"/>
            </Style>
        </Grid.Resources>    
    
        <Grid.RowDefinitions>
            <RowDefinition Height="*" />
            <RowDefinition Height="4*" />
            <RowDefinition Height="6*" />
        </Grid.RowDefinitions>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="auto" />
            <ColumnDefinition Width="3*" />
        </Grid.ColumnDefinitions>
 
        <Image Source="/Images/Ed.jpg" Grid.Row="0" Grid.Column="0" Grid.RowSpan="2" Margin="10">
            <Image.Effect>
                <DropShadowEffect />
            </Image.Effect> 
        </Image>
 
        <TextBlock Text="Edward Scissorhands (1990)" Grid.Column="1" Margin="3,5,0,0" VerticalAlignment="Top" FontSize="18" Height="30" />
 
        <StackPanel Grid.Row="1" Grid.Column="1">
            <StackPanel Orientation="Vertical">
                <TextBlock Text="Director" Style="{StaticResource MainText}" />
                <TextBlock Text="Tim Burton" Margin="3,0" />
            </StackPanel>
            <StackPanel Orientation="Vertical" >
                <TextBlock Text="Cast" Style="{StaticResource MainText}" />
                <TextBlock Style="{StaticResource SmallText}" Text="Johnny Depp, Vincent Price, Dianne Wiest, Robert Oliveri, Alan Arkin, O-Lan Jones, Anthony Michael Hall" />                  
            </StackPanel>
        </StackPanel>
 
        <DockPanel Grid.Row="2" Grid.Column="0" Grid.ColumnSpan="2" >
            <TextBlock Text="Description" DockPanel.Dock="Top" Style="{StaticResource MainText}" />
            <TextBlock Style="{StaticResource SmallText}" Text="An elderly woman describes to her granddaughter where snow comes from, by telling her the story of a young man named Edward (Johnny Depp), who has scissors for hands, the creation of an inventor (Vincent Price). The inventor's final result was a humanlike young boy who had everything except for hands, but the inventor had a heart attack and died while in the act of giving a pair of real hands to Edward, leaving him 'unfinished' forever."  
                       DockPanel.Dock="Top" />            
        </DockPanel>
 
    </Grid>
</Window>