Visual Studio Extensibility: Adding existing folders to a project

ProjectItem folder =
item.ProjectItem.Collection.AddFolder(newDirectoryName, string.Empty);

DirectoryInfo dirInfo = new DirectoryInfo(newDirectoryParent +
newDirectoryName);
if (dirInfo.Exists)
{
    dirInfo.Delete(true);
}

ProjectItem folder =
item.ProjectItem.Collection.AddFolder(newDirectoryName, string.Empty);

DirectoryInfo dirInfo = new DirectoryInfo(newDirectoryParent + newDirectoryName);

if (dirInfo.Exists)
{
    dirInfo.Delete(true);
    item.DTE.ExecuteCommand("View.Refresh", string.Empty);
}

ProjectItem folder = item.ProjectItem.Collection.AddFolder(newDirectoryName, string.Empty);

ProjectItem pi = null;
var dir = Path.Combine(
      project.Properties.Item("LocalPath").Value.ToString(), SubdirectoryName);
if (Directory.Exists(dir))
    pi = target.ProjectItems.AddFromDirectory(dir);
else
    pi = target.ProjectItems.AddFolder(dir);

<ItemGroup>
   <compile include="pathrootFolderToInclude***.cs" />
</ItemGroup>

//Getting the current project
private DTE2 _applicationObject;
System.Array projs = (System.Array)_applicationObject.ActiveSolutionProjects;
Project proy=(Project)projs.GetValue(0);
//Getting the path
string path=proy.FullName.Substring(0,proy.FullName.LastIndexOf('\'));
//Valitating if the path exists
bool existsDirectory= Directory.Exists(path + "\Directory");
//Deleting and creating the Directory
if (existeClasses)
   Directory.Delete(path + "\Directory", true);
Directory.CreateDirectory(path + "\Directory");
//Including in the project
proy.ProjectItems.AddFromDirectory(path + "\Directory");