Today I spent a lot of time to understand why my style doesn’t work.
<Application xmlns="https://xamarin.com/schemas/2014/forms"
xmlns:x="https://schemas.microsoft.com/winfx/2009/xaml"
x:Class="myProject.App">
<Application.Resources>
<ResourceDictionary>
<Style x:Key="WarmGreyLine" TargetType="BoxView">
<Setter Property="HeightRequest" Value="1" />
<Setter Property="HorizontalOptions" Value="Fill" />
<Setter Property="Color" Value="#EEE9E5" />
<Setter Property="Margin" Value="0,10,0,10" />
</Style>
</ResourceDictionary>
</Application.Resources>
</Application>
I followed a video about it on Xamarin University. Everything was the same. They say you can copy your style from a ContentPage.Resources and page in the Application.Resources section
<ContentPage.Resources>
<ResourceDictionary>
<Style x:Key="WarmGreyLine" TargetType="BoxView">
<Setter Property="HeightRequest" Value="1" />
<Setter Property="HorizontalOptions" Value="Fill" />
<Setter Property="Color" Value="#EEE9E5" />
<Setter Property="Margin" Value="0,10,0,10" />
</Style>
</ResourceDictionary>
</ContentPage.Resources>
The XAML is correct but if you execute the code you receive an error like:
Inner Exception: Position 38:14. StaticResource not found for key WarmGreyLine Message: Exception has been thrown by the target of an invocation.
The Solution
The is a little thing in the video they forgot to say!
In the App.xaml.cs you have to call InitializeComponent();
namespace myInventories
{
public partial class App : Application
{
public App()
{
InitializeComponent();
}
}
}
Happy coding!
