How can I change WPF Button Image in Setter

Question

I have a very strange problem trying to change the controltemplate for a button in WPF (c#).

I now have the following code:

    <Window.Resources>
    <Style x:Key="ButtonFocusVisual">
        <Setter Property="Control.Template">
            <Setter.Value>
                <ControlTemplate>
                    <Rectangle Margin="2" SnapsToDevicePixels="true" Stroke="Black" StrokeThickness="1" StrokeDashArray="1 2"/>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>
    <Style x:Key="MacOSX-Close" TargetType="{x:Type Button}">
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="{x:Type Button}">
                    <Border Background="Black" BorderThickness="0">
                    <Image x:Name="bgimg" Source="bin/debug/Ressources/Images/GUI/frame-btn-defaulted.png"/>
                    </Border>
                    <ControlTemplate.Triggers>
                        <Trigger Property="IsEnabled" Value="false">
                            <Setter Property="Foreground" Value="#ADADAD"/>
                        </Trigger>
                        <Trigger Property="IsPressed" Value="true">
                            <Setter TargetName="bgimg" Property="Source" Value="bin/debug/Ressources/Images/GUI/frame-btn-defaulted.png"/>
                        </Trigger>
                    </ControlTemplate.Triggers>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>
</Window.Resources>

So this isn't working. It says

    "{DependencyProperty.UnsetValue}" is no valid value for property "System.Windows.Controls.Image.Source" on a setter.

And when I tried using multiple images in a grid (because you can only set one child) and modified the "visibility" property, the button didn't show up at all!!! No button, no image. And, yes, I am sure the image exists. But the source is relative to the solution root, not to the compiled program... does this matter? Please help me :) I'm gettin' little desperate here... :(

Best regards ;) And please ask if somethin's not clear to you.

Answer 1

Create folder like say Resources in your project and put image in your resources folder and their build action should be set to Resource. Then you can set Source = "/Resources/frame-btn-defaulted.png"