<Page
    x:Class="WinUI3DesktopMVVM.Views.LayoutSandBox"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:WinUI3DesktopMVVM.Views"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:staticStuff ="using:WinUI3DesktopMVVM"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d"
    Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
    <Page.Resources>
        <DataTemplate x:Key="myTemplate">
            <TextBlock  Text="{x:Bind staticStuff:StaticTestClass.GetString()}"/>
        </DataTemplate>

    </Page.Resources>


    <StackPanel Background="DarkCyan">
        <ContentControl ContentTemplate="{StaticResource myTemplate}"/><!--does not work-->
        <ContentControl Content="{x:Bind staticStuff:StaticTestClass.GetString()}"/> <!--works fine-->
    </StackPanel>

</Page>

namespace WinUI3DesktopMVVM
{
    public class StaticTestClass
    {
        public static string StaticSTring { get; set; } = "TESTing stirng";


        public static string GetString()
        {
            return "TEST_string";
        }
    }
}