如何使用 VS Package 在解决方案资源管理器中获取所选项目的项目类型 Guid

我创建了简单的 VS 包，用于在解决方案资源管理器的上下文菜单中添加新项目。我需要检查所选项目的项目类型 GUID。我怎样才能得到这个。

例如，一个解决方案包含三种不同类型的项目，如 WindowFormsApplication、MVC 项目、WebApplication。在选择 MVC 项目时，我们需要获取该项目类型 GUID。

我在我的 Package.cs 中尝试了以下操作，

IVsMonitorSelection monitorSelection = (IVsMonitorSelection)Package.GetGlobalService(typeof(SVsShellMonitorSelection));

monitorSelection.GetCurrentSelection(out hierarchyPtr, out projectItemId, out mis, out selectionContainerPtr);

IVsHierarchy hierarchy = Marshal.GetTypedObjectForIUnknown(hierarchyPtr, typeof(IVsHierarchy)) as IVsHierarchy;

if (hierarchy != null)
{
     object prjItemObject;
     hierarchy.GetProperty(projectItemId, (int)__VSHPROPID.VSHPROPID_ExtObject, out    prjItemObject);
     string projectTypeGuid;
      Project prjItem = prjItemObject as Project;
      projectTypeGuid = prjItem.Kind;
}

对于所有选定的项目，我获得的 GUID 为“FAE04EC0-301F-11D3-BF4B-00C04F79EFBC”。

有人可以帮我这个吗？

我已经找到了这个问题的答案

参考：https://www.mztools.com/articles/2007/MZ2007016.aspx

public string GetProjectTypeGuids(EnvDTE.Project proj)
        {
            string projectTypeGuids = "";
            object service = null;
            Microsoft.VisualStudio.Shell.Interop.IVsSolution solution = null;
            Microsoft.VisualStudio.Shell.Interop.IVsHierarchy hierarchy = null;
            Microsoft.VisualStudio.Shell.Interop.IVsAggregatableProject aggregatableProject = null;
            int result = 0;
            service = GetService(proj.DTE, typeof(Microsoft.VisualStudio.Shell.Interop.IVsSolution));
            solution = (Microsoft.VisualStudio.Shell.Interop.IVsSolution)service;

            result = solution.GetProjectOfUniqueName(proj.UniqueName, out hierarchy);

            if (result == 0)
            {
                aggregatableProject = (Microsoft.VisualStudio.Shell.Interop.IVsAggregatableProject)hierarchy;
                result = aggregatableProject.GetAggregateProjectTypeGuids(out projectTypeGuids);
            }

            return projectTypeGuids;
        }

        public object GetService(object serviceProvider, System.Type type)
        {
            return GetService(serviceProvider, type.GUID);
        }

        public object GetService(object serviceProviderObject, System.Guid guid)
        {
            object service = null;
            Microsoft.VisualStudio.OLE.Interop.IServiceProvider serviceProvider = null;
            IntPtr serviceIntPtr;
            int hr = 0;
            Guid SIDGuid;
            Guid IIDGuid;

            SIDGuid = guid;
            IIDGuid = SIDGuid;
            serviceProvider = (Microsoft.VisualStudio.OLE.Interop.IServiceProvider)serviceProviderObject;
            hr = serviceProvider.QueryService(ref SIDGuid, ref IIDGuid, out serviceIntPtr);

            if (hr != 0)
            {
                System.Runtime.InteropServices.Marshal.ThrowExceptionForHR(hr);
            }
            else if (!serviceIntPtr.Equals(IntPtr.Zero))
            {
                service = System.Runtime.InteropServices.Marshal.GetObjectForIUnknown(serviceIntPtr);
                System.Runtime.InteropServices.Marshal.Release(serviceIntPtr);
            }

            return service;
        }
    }

它工作正常，适合我的要求。