我也在找这个。我有一个运行HWC的项目，我想让网站远离应用程序树，但我不想让它在调试(或发布)目录。FWIW是公认的解决方案(这个也是)，它只标识可执行文件所在的目录。

找到我一直在用的那个目录

string startupPath = System.IO.Path.GetFullPath(".\\").

这适用于VS2017 w/ SDK核心MSBuild配置。

您需要在EnvDTE / EnvDTE80包中NuGet。

不要使用COM或互操作。任何东西……垃圾! !

 internal class Program {
    private static readonly DTE2 _dte2;

    // Static Constructor
    static Program() {
      _dte2 = (DTE2)Marshal.GetActiveObject("VisualStudio.DTE.15.0");
    }


    private static void FindProjectsIn(ProjectItem item, List<Project> results) {
      if (item.Object is Project) {
        var proj = (Project) item.Object;
        if (new Guid(proj.Kind) != new Guid(Constants.vsProjectItemKindPhysicalFolder))
          results.Add((Project) item.Object);
        else
          foreach (ProjectItem innerItem in proj.ProjectItems)
            FindProjectsIn(innerItem, results);
      }

      if (item.ProjectItems != null)
        foreach (ProjectItem innerItem in item.ProjectItems)
          FindProjectsIn(innerItem, results);
    }


    private static void FindProjectsIn(UIHierarchyItem item, List<Project> results) {
      if (item.Object is Project) {
        var proj = (Project) item.Object;
        if (new Guid(proj.Kind) != new Guid(Constants.vsProjectItemKindPhysicalFolder))
          results.Add((Project) item.Object);
        else
          foreach (ProjectItem innerItem in proj.ProjectItems)
            FindProjectsIn(innerItem, results);
      }

      foreach (UIHierarchyItem innerItem in item.UIHierarchyItems)
        FindProjectsIn(innerItem, results);
    }


    private static IEnumerable<Project> GetEnvDTEProjectsInSolution() {
      var ret = new List<Project>();
      var hierarchy = _dte2.ToolWindows.SolutionExplorer;
      foreach (UIHierarchyItem innerItem in hierarchy.UIHierarchyItems)
        FindProjectsIn(innerItem, ret);
      return ret;
    }


    private static void Main() {
      var projects = GetEnvDTEProjectsInSolution();
      var solutiondir = Path.GetDirectoryName(_dte2.Solution.FullName);

      // TODO
      ...

      var project = projects.FirstOrDefault(p => p.Name == <current project>);
      Console.WriteLine(project.FullName);
    }
  }

使用这个来获得项目目录(为我工作):

string projectPath = 
    Directory.GetParent(Directory.GetCurrentDirectory()).Parent.FullName;

using System;
using System.IO;

// Get the current directory and make it a DirectoryInfo object.
// Do not use Environment.CurrentDirectory, vistual studio 
// and visual studio code will return different result:
// Visual studio will return @"projectDir\bin\Release\netcoreapp2.0\", yet 
// vs code will return @"projectDir\"
var currentDirectory = new DirectoryInfo(AppDomain.CurrentDomain.BaseDirectory);

// On windows, the current directory is the compiled binary sits,
// so string like @"bin\Release\netcoreapp2.0\" will follow the project directory. 
// Hense, the project directory is the great grand-father of the current directory.
string projectDirectory = currentDirectory.Parent.Parent.Parent.FullName;

我也遇到过类似的情况，在google搜索无果之后，我声明了一个公共字符串，它修改调试/发布路径的字符串值以获得项目路径。使用这种方法的一个好处是，因为它使用了当前项目的目录，所以不管你是从调试目录还是发布目录工作:

public string DirProject()
{
    string DirDebug = System.IO.Directory.GetCurrentDirectory();
    string DirProject = DirDebug;

    for (int counter_slash = 0; counter_slash < 4; counter_slash++)
    {
        DirProject = DirProject.Substring(0, DirProject.LastIndexOf(@"\"));
    }

    return DirProject;
}

然后你就可以在任何你想要的时候调用它，只使用一行:

string MyProjectDir = DirProject();

这在大多数情况下都是可行的。

我没有看到使用字符串的解决方案。连接和字符串。Split + SkipLast 4个元素，在这里。

            string projectDir = 
            string.Join('/', AppDomain.CurrentDomain.BaseDirectory
                .Split(new char[] { '/' })
                .SkipLast(4));