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c#wpfxamlwindow
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Reputation: 317

Why does style TargetType="Window" not work when set from App.xaml?

I'm creating a simple WPF project in VS2013 and I want to apply properties to my main Window. I set them in my App.xaml file like this:

<Application.Resources>
    <Style TargetType="Window">
        <Setter Property="Background" Value="#FF2D2D30" />
    </Style>
</Application.Resources>

The problem is that nothing happens. When I change the TargetType to Grid however, the setter property works just fine. Why does this happen?

Upvotes: 8

Views: 4720

Answers (3)

Jegan Raj
Jegan Raj

Reputation: 32

You can either set the TargetType to "MainWindow" or set resource reference for Style property.

public MainWindow()
{
    InitializeComponent();
    SetResourceReference(StyleProperty, typeof(Window));
}

Upvotes: 0

Sivasubramanian
Sivasubramanian

Reputation: 955

Answering for this question "Why does it not works".

The reason why the Target type is not applied to your Window is because, you are using a derived type of a window with name "MainWindow". So in your style resource you have to set the target type as the derived type (MainWindow). By doing so it will be applied only to the "MainWindow" window.

<Style  TargetType="local:MainWindow">
    <Setter Property="Background" Value="#FF2D2D30" />
</Style>

Upvotes: 6

Anatoliy Nikolaev
Anatoliy Nikolaev

Reputation: 22702

It is necessary to add construction in Window:

Style="{StaticResource {x:Type Window}}"

Window in XAML:

<Window x:Class="WindowStyleHelp.MainWindow"
        Style="{StaticResource {x:Type Window}}"
        ...>

Or define Style in resources like this:

xmlns:local="clr-namespace:MyWpfApplication"

<Application.Resources>
    <Style TargetType="{x:Type local:MainWindow}">
        <Setter Property="Background" Value="#FF2D2D30"/>
    </Style>
</Application.Resources>

Upvotes: 5

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