【WPF】Bitmap Effect制作圆角加渲染TextBox

<Window.Resources>
        <ControlTemplate x:Key="txtTemplate" TargetType="{x:Type TextBox}">
            <Border x:Name="Bd" SnapsToDevicePixels="True"
                    Background="{TemplateBinding Background}"
                    BorderBrush="{TemplateBinding BorderBrush}"
                    BorderThickness="{TemplateBinding BorderThickness}"
                    CornerRadius="">
                <ScrollViewer x:Name="PART_ContentHost"
                           SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"
                           VerticalAlignment="Center"/>
            </Border>
        </ControlTemplate>
    </Window.Resources>
    <Grid>
        <TextBox Width="" Height="" Template="{StaticResource txtTemplate}">

            <TextBox.BitmapEffect>
                <OuterGlowBitmapEffect GlowColor="Blue" GlowSize="" Noise="0.5" x:Name="outer" Opacity="0.5" />
            </TextBox.BitmapEffect>

        </TextBox>

    </Grid>

效果图