XAML-Map-Control/SampleApps/ProjectionDemo/ProjectionDemo.csproj

<Project Sdk="Microsoft.NET.Sdk">
    <PropertyGroup>
        <OutputType>WinExe</OutputType>
        <TargetFramework>net9.0-windows</TargetFramework>
        <UseWPF>true</UseWPF>
        <RootNamespace>ProjectionDemo</RootNamespace>
        <AssemblyTitle>XAML Map Control Projection Demo Application</AssemblyTitle>
    </PropertyGroup>

    <ItemGroup>
        <ProjectReference Include="..\..\MapControl\WPF\MapControl.WPF.csproj" />
    </ItemGroup>
</Project>