Untitled

Set border image for Textbox on focus

<Style  TargetType="{x:Type TextBox}">

            <Style.Triggers>

                <Trigger Property="IsFocused" Value="True">

                    <Setter Property="BorderThickness" Value="2.20" />

                    <Setter Property="BorderBrush"  Value="#f8cb1c" />

                </Trigger>

            </Style.Triggers>

        </Style>

       

<Style x:Key="TextBoxStyle1" BasedOn="{x:Null}" TargetType="{x:Type TextBox}">

        <Setter Property="Template">

            <Setter.Value>

                <ControlTemplate TargetType="{x:Type TextBox}">

                    <Microsoft_Windows_Themes:ListBoxChrome x:Name="Bd" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" RenderMouseOver="{TemplateBinding IsMouseOver}" RenderFocused="{TemplateBinding IsKeyboardFocusWithin}" SnapsToDevicePixels="true">

                        <Grid>

                            <Image x:Name="imgctrl" Stretch="Fill"/>

                            <ScrollViewer x:Name="PART_ContentHost" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>

                        </Grid>

                    </Microsoft_Windows_Themes:ListBoxChrome>

                    <ControlTemplate.Triggers>

                        <Trigger Property="IsEnabled" Value="false">

                            <Setter Property="Background" TargetName="Bd" Value="{DynamicResource {x:Static SystemColors.ControlBrushKey}}"/>

                            <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}"/>

                        </Trigger>

                        <Trigger Property="IsFocused" Value="True">

                            <Setter Property="Source" TargetName="imgctrl" Value="5.jpg"/>

                        </Trigger>

                    </ControlTemplate.Triggers>

                </ControlTemplate>

            </Setter.Value>

        </Setter>

    </Style>

       

<Style x:Key="BorderImageStyle" TargetType="{x:Type Image}">

    <Setter Property="IsVisible" Value="False" />

    <Style.Triggers>

        <DataTrigger Binding="{Binding ElementName=SomeTextBox, Path=IsKeyboardFocusWithin}" Value="True">

            <Setter Property="IsVisible" Value="True" />

        </DataTrigger>

</Style>

 

 

<Grid>

    <Image x:Name="BorderImage" ... />

    <TextBox x:Name="SomeTextBox" BorderThickness="0" Margin="20" ... />

</Grid>