CODEWITHSUNDEEP
c#xamlxamarin.forms
Ahune ajé o ahe
Ahune ajé o ahe

Reputation: 141

Is it possible to bind value for FontSize from a ResourceDictionary?

I am working on an app where I am in need of changeing the text size from small to big with help of a settings page.

I have decoupled my code from the app.xaml and added some references there instread from some ResourceDictionary i've created.

I am now wondering if its possible to bind the value.

    <Style x:Key="articleBodyText" TargetType="Label">
        <Setter Property="FontSize" Value="{Binding SelectedFontSize}"/>
        <Setter Property="Padding" Value="0,0,0,15"/>
        <Setter Property="TextColor" Value="{AppThemeBinding Dark={StaticResource LightPrimaryColor}, Light={StaticResource DarkPrimaryColor}}"></Setter>
    </Style>

Upvotes: 0

Views: 231

Answers (2)

Cfun
Cfun

Reputation: 9701

Define a property of type double

    private double _SelectedFontSize;
    public double SelectedFontSize
        {
            get => _SelectedFontSize;
            set => SetProperty(ref _SelectedFontSize, value);  //INotifyProertyChanged
        }

Supposed you have defined CustomSmall resource either in xaml or in code:

    Resources.Add("CustomSmall", 10);
    Resources.Add("CustomLarge", 22);

    Resources.TryGetValue("CustomSmall", out var fontSize);
    FontSize = (double)fontSize;

Related question

How can I add application resources to my C# backend for the application instead of in the XAML file?

Upvotes: 1

Ann
Ann

Reputation: 1

Value=new Binding(16) for example should set the Fontsize to 16. So you pass the chosen value from you're settings Page and use it in the binding.

Upvotes: 0

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