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I am experimenting with migrating a WPF project, defined using the old csproj format, to the new format under VS 2017.
I was able to get most of the way to a successful build using information I found at How-to migrate Wpf projects to the new VS2017 format.
But I'm stuck at getting past this error:
error CS5001: Program does not contain a static 'Main' method suitable for an entry point
My new-style csproj file is as follows:
<Project Sdk="Microsoft.NET.Sdk"> <PropertyGroup> <LanguageTargets>$(MSBuildExtensionsPath)\$(VisualStudioVersion)\Bin\Microsoft.CSharp.targets</LanguageTargets> <OutputType>winexe</OutputType> <TargetFramework>net47</TargetFramework> <ApplicationIcon /> <OutputTypeEx>winexe</OutputTypeEx> <StartupObject /> </PropertyGroup> <ItemGroup> <EmbeddedResource Update="Properties\Resources.resx" Generator="ResXFileCodeGenerator" LastGenOutput="Resources.Designer.cs" /> <Compile Update="Properties\Resources.Designer.cs" DesignTime="True" AutoGen="True" DependentUpon="Resources.resx" /> <Compile Update="Settings.Designer.cs" AutoGen="True" DependentUpon="Settings.settings" /> <None Update="Settings.settings" LastGenOutput="Settings.Designer.cs" Generator="SettingsSingleFileGenerator" /> <Page Include="**\*.xaml" SubType="Designer" Generator="MSBuild:Compile" /> <Compile Update="**\*.xaml.cs" SubType="Designer" DependentUpon="%(Filename)" /> <Resource Include="assets\*.*" /> </ItemGroup> <ItemGroup> <PackageReference Include="Autofac" Version="4.6.0" /> <PackageReference Include="Autofac.Extras.CommonServiceLocator" Version="4.0.0" /> <PackageReference Include="Extended.Wpf.Toolkit" Version="3.0.0" /> <PackageReference Include="Hardcodet.NotifyIcon.Wpf" Version="1.0.8" /> <PackageReference Include="MaterialDesignColors" Version="1.1.3" /> <PackageReference Include="MaterialDesignThemes" Version="2.3.0.823" /> <PackageReference Include="MvvmLightLibs" Version="5.3.0" /> <PackageReference Include="Serilog" Version="2.4.0" /> <PackageReference Include="Serilog.Sinks.RollingFile" Version="3.3.0" /> </ItemGroup> <ItemGroup> <ProjectReference Include="..\..\WPFUtilities\J4JUI\J4JUI.csproj" /> </ItemGroup> <ItemGroup> <Reference Include="System.ComponentModel.DataAnnotations" /> </ItemGroup> <Import Project="$(MSBuildSDKExtrasTargets)" Condition="Exists('$(MSBuildSDKExtrasTargets)')" /> </Project> How do I configure the csproj file so that entry point gets built?
Update
Based on the tip about ApplicationDefinition I was able to get the project to compile. I could not set ApplicationDefinition in the BuildAction -- it was not one of the choices -- but had to edit the csproj file manually to include it. Here's the working version:
<Project Sdk="Microsoft.NET.Sdk"> <PropertyGroup> <LanguageTargets>$(MSBuildExtensionsPath)\$(VisualStudioVersion)\Bin\Microsoft.CSharp.targets</LanguageTargets> <OutputType>winexe</OutputType> <TargetFramework>net47</TargetFramework> <ApplicationIcon /> <OutputTypeEx>winexe</OutputTypeEx> <StartupObject /> </PropertyGroup> <ItemGroup> <EmbeddedResource Update="Properties\Resources.resx" Generator="ResXFileCodeGenerator" LastGenOutput="Resources.Designer.cs" /> <Compile Update="Properties\Resources.Designer.cs" DesignTime="True" AutoGen="True" DependentUpon="Resources.resx" /> <Compile Update="Settings.Designer.cs" AutoGen="True" DependentUpon="Settings.settings" /> <None Update="Settings.settings" LastGenOutput="Settings.Designer.cs" Generator="SettingsSingleFileGenerator" /> <Page Include="**\*.xaml" SubType="Designer" Generator="MSBuild:Compile" Exclude="App.xaml" /> <Compile Update="**\*.xaml.cs" SubType="Designer" DependentUpon="%(Filename)" /> <Resource Include="assets\*.*" /> <ApplicationDefinition Include="App.xaml"> <Generator>MsBuild:Compile</Generator> <SubType>Designer</SubType> </ApplicationDefinition> </ItemGroup> <ItemGroup> <PackageReference Include="Autofac" Version="4.6.0" /> <PackageReference Include="Autofac.Extras.CommonServiceLocator" Version="4.0.0" /> <PackageReference Include="Extended.Wpf.Toolkit" Version="3.0.0" /> <PackageReference Include="Hardcodet.NotifyIcon.Wpf" Version="1.0.8" /> <PackageReference Include="MaterialDesignColors" Version="1.1.3" /> <PackageReference Include="MaterialDesignThemes" Version="2.3.0.823" /> <PackageReference Include="MvvmLightLibs" Version="5.3.0" /> <PackageReference Include="Serilog" Version="2.4.0" /> <PackageReference Include="Serilog.Sinks.RollingFile" Version="3.3.0" /> </ItemGroup> <ItemGroup> <ProjectReference Include="..\..\WPFUtilities\J4JUI\J4JUI.csproj" /> </ItemGroup> <ItemGroup> <Reference Include="System.ComponentModel.DataAnnotations" /> </ItemGroup> <Import Project="$(MSBuildSDKExtrasTargets)" Condition="Exists('$(MSBuildSDKExtrasTargets)')" /> </Project> Note also the Exclude filter on the directive. It's necessary to keep MSBuild from attempting to compile App.xaml.cs twice.
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. NET Core 3.1 Support for ASP.NET Core, WinForms, and WPF Controls (v19. 2.5)
To develop a . NET Core WPF application, you need Visual Studio 2019 and . NET Core 3.0 installed in your machine.
NET 5/6+ gives us an updated version of Windows Presentation Foundation (WPF). Unlike Web Forms or the Windows Communication Foundation (WCF), Microsoft brought this .
A CSPROJ file is a C# (C Sharp) programming project file created by Microsoft Visual Studio. It contains XML-formatted text that lists a project's included files and compilation options. Developers compile CSPROJ files using MSBuild (the Microsoft Build Engine).
You need to set the Build Action of App.xaml to ApplicationDefinition. The result is the following item in your csproj file:
<ApplicationDefinition Include="App.xaml"> <Generator>MSBuild:Compile</Generator> <SubType>Designer</SubType> </ApplicationDefinition> If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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