CODEWITHSUNDEEP
c#.netwpf
Person.Junkie
Person.Junkie

Reputation: 1886

WPF Resources - Shared?

As I know button does not create new instance, it uses shared resource. Why is button's background blue and not Red?

XAML:

<StackPanel Name="st">
        <Button Margin="50" Name="btn" Height="50">Click</Button>
    </StackPanel>

Code behind:

st.Resources.Add("Back", Brushes.Blue);
       btn.Background = (Brush)btn.TryFindResource("Back");
       st.Resources["Back"] = Brushes.Red;

Upvotes: 0

Views: 39

Answers (1)

King King
King King

Reputation: 63317

Once setting the Background, it's just kind of snapshotting. Changing the Resource after that won't change the Background. You have to use some kind of setting resource reference using SetResourceReference method like this:

st.Resources.Add("Back", Brushes.Blue);                
btn.SetResourceReference(Control.BackgroundProperty, "Back");
st.Resources["Back"] = Brushes.Red;

Upvotes: 1

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