<Window x:Class="MultiTrigger_Sample.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:MultiTrigger_Sample"
        mc:Ignorable="d"
        Title="MultiTrigger_Sample" Height="100" Width="300">
    <Window.Resources>
        <Style TargetType="TextBox">
            <Style.Triggers>
                <MultiTrigger>
                    <MultiTrigger.Conditions>
                        <Condition Property="IsMouseOver" Value="true" />
                        <Condition Property="Text" Value="" />
                    </MultiTrigger.Conditions>
                    <Setter Property="TextBox.Background" Value="Red" />
                </MultiTrigger>
            </Style.Triggers>
        </Style>
    </Window.Resources>
    <StackPanel>
        <TextBox Margin="10">
            Windows Presentation Foundation WPF
        </TextBox>
    </StackPanel>
</Window>
