wpf 怎么动态设置控件样式

wpf 如何动态设置控件样式

XML code

<Style TargetType="{x:Type s:DesignerItem}" x:Key="Node">    <Setter Property="MinWidth" Value="25"/>    <Setter Property="MinHeight" Value="25"/>    <Setter Property="SnapsToDevicePixels" Value="True"/>    </Style>    <Style TargetType="{x:Type s:DesignerItem}" x:Key="Button">        <Setter Property="MinWidth" Value="25"/>        <Setter Property="MinHeight" Value="25"/>        <Setter Property="SnapsToDevicePixels" Value="True"/>    </Style>