Using the ImplicitStyleManager

The ImplicitStyleManager lets you set styles implicitly in Silverlight as you might in WPF. You can find the ImplicitStyleManger in the System.Windows.Controls.Theming.Toolkit.dll assembly installed with the Silverlight Toolkit.

To use the ImplicitStyleManager add a reference in your project to the System.Windows.Controls.Theming.Toolkit.dll assembly and add its namespace to the initial UserControl tag as in the following markup:

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<UserControl xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:c1="clr-namespace:C1.Silverlight;assembly=C1.Silverlight" xmlns:theming="clr-namespace:System.Windows.Controls.Theming;assembly=System.Windows.Controls.Theming.Toolkit" x:Class="C1Theming.MainPage" Width="640" Height="480">

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<UserControl 
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
xmlns:c1="clr-namespace:C1.Silverlight;assembly=C1.Silverlight" 
xmlns:theming="clr-namespace:System.Windows.Controls.Theming;assembly=System.Windows.Controls.Theming.Toolkit" 
x:Class="C1Theming.MainPage" Width="640" Height="480">

Once you've added the reference and namespace you can use the ImplicitStyleManager in your application. For example, in the following markup a style is added and implicitly implemented:

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<Grid x:Name="LayoutRoot" Background="White" theming:ImplicitStyleManager.ApplyMode="OneTime"> <Grid.Resources> <Style TargetType="c1:C1DropDown"> <Setter Property="Background" Value="Red" /> </Style> </Grid.Resources> <StackPanel HorizontalAlignment="Center" VerticalAlignment="Center"> <c1:C1DropDown Margin="5" Content="C1DropDown" Height="30" Width="100"/> </StackPanel> </Grid>

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        <Grid x:Name="LayoutRoot" Background="White" theming:ImplicitStyleManager.ApplyMode="OneTime">
            <Grid.Resources>
                <Style TargetType="c1:C1DropDown">
                    <Setter Property="Background" Value="Red" />
                </Style>
            </Grid.Resources>     
            <StackPanel HorizontalAlignment="Center" VerticalAlignment="Center">
                <c1:C1DropDown Margin="5" Content="C1DropDown" Height="30" Width="100"/>
            </StackPanel>
        </Grid>