c# - 如何从 Visual Studio 扩展和新的 csproj 格式获取 IntermediateOutputPath

Question

我有一个新样式的 csproj 项目文件，它覆盖了 IntermediateOutputPath。它看起来像这样:

<PropertyGroup>
    <TargetFramework>netstandard1.6</TargetFramework>
    <IntermediateOutputPath>new\path\to\obj</IntermediateOutputPath>
</PropertyGroup>

问题是，我的 Visual Studio 扩展无法访问 IntermediateOutputPath 属性。与旧项目格式相比，Project.Properties 似乎少了很多东西。

我也试过 project.ConfigurationManager.ActiveConfiguration.Properties 并取得了类似的成功。

有没有办法从 Visual Studio 扩展中获取这些信息？

Answer 1

所以我创建了一个简单的扩展来打印所有属性

    private string GetPropertiesString(Properties properties)
    {
        StringBuilder test = new StringBuilder();
        foreach (Property property in properties)
        {
            try
            {
                test.AppendLine(property.Name + ":=" + property.Value.ToString());
                Console.WriteLine(property.Name + ":=" + property.Value.ToString());
            }
            catch (Exception ex)
            {
                var x = ex.Message;
            }
        }

        return test.ToString();
    }

    private void MenuItemCallback(object sender, EventArgs e)
    {
        DTE2 dte2 = Package.GetGlobalService(typeof(DTE)) as DTE2;
        var sol = dte2.Solution;
        var projs = sol.Projects;
        foreach (var proj in sol)
        {
            var project = proj as Project;
            var rows = project.ConfigurationManager.ConfigurationRowNames as IEnumerable<object>;
            foreach (var row in rows)
            {
                var config = project.ConfigurationManager.ConfigurationRow(row.ToString()).Item(1) as Configuration;
                string configs = GetPropertiesString(config.Properties);
            }
        }
    }

这给出了以下输出

LanguageVersion:=
RunCodeAnalysis:=False
NoStdLib:=False
ErrorReport:=prompt
CodeAnalysisUseTypeNameInSuppression:=True
CodeAnalysisInputAssembly:=bin\Debug\WindowsFormsApp1.exe
CodeAnalysisDictionaries:=
GenerateSerializationAssemblies:=2
CodeAnalysisModuleSuppressionsFile:=GlobalSuppressions.cs
StartWorkingDirectory:=
Optimize:=False
DocumentationFile:=
StartPage:=
OutputPath:=bin\Debug\
TreatWarningsAsErrors:=False
EnableASPDebugging:=False
IncrementalBuild:=True
CodeAnalysisFailOnMissingRules:=False
CodeAnalysisLogFile:=bin\Debug\WindowsFormsApp1.exe.CodeAnalysisLog.xml
DefineConstants:=DEBUG;TRACE
UseVSHostingProcess:=True
StartProgram:=
DefineDebug:=False
CodeAnalysisIgnoreBuiltInRules:=True
CodeAnalysisRuleSetDirectories:=;F:\VS2017\Team Tools\Static Analysis Tools\\Rule Sets
CodeAnalysisCulture:=
CodeAnalysisOverrideRuleVisibilities:=False
CodeAnalysisRuleAssemblies:=
DefineTrace:=False
DebugSymbols:=True
CodeAnalysisIgnoreBuiltInRuleSets:=True
CodeAnalysisRuleSet:=MinimumRecommendedRules.ruleset
NoWarn:=
CodeAnalysisIgnoreGeneratedCode:=True
EnableSQLServerDebugging:=False
BaseAddress:=4194304
RemoteDebugEnabled:=False
StartURL:=
AllowUnsafeBlocks:=False
TreatSpecificWarningsAsErrors:=
PlatformTarget:=AnyCPU
EnableUnmanagedDebugging:=False
StartWithIE:=False
StartArguments:=
IntermediatePath:=new\path\to\obj2\
CodeAnalysisRuleDirectories:=;F:\VS2017\Team Tools\Static Analysis Tools\FxCop\\Rules
DebugInfo:=full
CheckForOverflowUnderflow:=False
RemoteDebugMachine:=
Prefer32Bit:=True
CodeAnalysisSpellCheckLanguages:=
CodeAnalysisRules:=
RegisterForComInterop:=False
FileAlignment:=512
StartAction:=0
EnableASPXDebugging:=False
ConfigurationOverrideFile:=
WarningLevel:=4
RemoveIntegerChecks:=False

在我添加的CS项目中

<IntermediateOutputPath>new\path\to\obj2</IntermediateOutputPath>

如您所见，IntermediateOutputPath 将作为 IntermediatePath 出现。所以你可以使用

var config = project.ConfigurationManager.ConfigurationRow("Debug").Item(1) as Configuration;
config.Properties.Item("IntermediatePath").Value

Edit-1 - .NET 标准项目

Edit-2 - 2017 年 8 月 12 日

因此，在深入研究该问题后，我发现该属性本身就是一个 MSBuild 属性，而不是一个 CSProject 相关属性。这就是您在 Properties 属性中看不到它的原因。这需要稍微不同的方向才能使用 IVsBuildPropertyStorage.GetPropertyValue 获取值

    private IVsBuildPropertyStorage GetBuildPropertyStorage(EnvDTE.Project project)
    {
        IVsSolution solution = (IVsSolution)ServiceProvider.GetService(typeof(SVsSolution));

        IVsHierarchy hierarchy;
        int hr = solution.GetProjectOfUniqueName(project.FullName, out hierarchy);
        System.Runtime.InteropServices.Marshal.ThrowExceptionForHR(hr);

        return hierarchy as IVsBuildPropertyStorage;
    }

    private string GetBuildProperty(string key, IVsBuildPropertyStorage Storage)
    {
        string value;
        int hr = Storage.GetPropertyValue(key, null, (uint)_PersistStorageType.PST_USER_FILE, out value);
        int E_XML_ATTRIBUTE_NOT_FOUND = unchecked((int)0x8004C738);

        // ignore this HR, it means that there's no value for this key
        if (hr != E_XML_ATTRIBUTE_NOT_FOUND)
        {
            System.Runtime.InteropServices.Marshal.ThrowExceptionForHR(hr);

        }

        return value;
    }

然后再用这些方法获取值

var project = proj as EnvDTE.Project;
IVsBuildPropertyStorage storage = GetBuildPropertyStorage(project);
string outputPath = GetBuildProperty("IntermediateOutputPath", storage);

这给了我属性的正确值