WPF_Practice/PacticeSolution/HowToUseStyle/MainWindow.xaml

<Window x:Class="HowToUseStyle.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:HowToUseStyle"
        mc:Ignorable="d"
        Title="MainWindow" Height="450" Width="800">
    <Window.Resources>
        <!--Style Inheritance-->
        <Style TargetType="{x:Type Button}" x:Key="styBoldButton">
            <Setter Property="FontWeight" Value="ExtraBold"/>
        </Style>
        <Style TargetType="Button" BasedOn="{StaticResource styBoldButton}">
            <Setter Property="Background" Value="Tomato"/>
            <Setter Property="FontSize" Value="30"/>
        </Style>
        <Style TargetType="Button" x:Key="rscButton" BasedOn="{StaticResource styBoldButton}">
            <Setter Property="Background" Value="PaleVioletRed"/>
        </Style>
    </Window.Resources>
    
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition/>
            <RowDefinition/>
            <RowDefinition/>
            <RowDefinition/>
        </Grid.RowDefinitions>

        <Button Grid.Row="0" Content="This is button"/>
        <Button Grid.Row="1" Content="This is button" Style="{StaticResource rscButton}"/>
        <Button Grid.Row="2" Content="Trigger button">
            <Button.Style>
                <Style TargetType="Button">
                    <Style.Triggers>
                        <Trigger Property="IsMouseOver" Value="True">
                            <Setter Property="Background" Value="LimeGreen"/>
                            <Setter Property="Foreground" Value="White"/>
                        </Trigger>
                    </Style.Triggers>
                </Style>
            </Button.Style>
        </Button>
        <StackPanel Grid.Row="3" Orientation="Horizontal">
            <CheckBox x:Name="cbTrigger"/>
            <Button Content="Check the check box">
                <Button.Style>
                    <Style TargetType="Button">
                        <Style.Triggers>
                            <DataTrigger Binding="{Binding ElementName=cbTrigger, Path=IsChecked}" Value="True">
                                <Setter Property="Foreground" Value="Red"/>
                                <Setter Property="FontWeight" Value="ExtraBold"/>
                            </DataTrigger>
                        </Style.Triggers>
                    </Style>
                </Button.Style>
            </Button>
        </StackPanel>
    </Grid>
</Window>