c# - 通过 C# 与 Project Server 2016 集成

Question

我尝试做一个简单的任务：在 Visual Studio 的帮助下，我尝试获取有关诸如基线之类的任务的信息。我可以阅读并获取所有项目，但无法获取任务列表。我怎样才能得到它？这是我的代码示例：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Microsoft.ProjectServer.Client;


namespace ProjectAPI
{
    class Program1
    {
        private const string pwaPath = "https://XXXXXXXXX"; 
        private static string projName = string.Empty;

        private static ProjectContext projContext;
        private static PublishedTask projTasks;

        static void Main(string[] args)
        {
            projContext = new ProjectContext(pwaPath);
            projContext.Load(projContext.Projects);
            projContext.ExecuteQuery();

            List<string> TasksID = new List<string>();

            foreach (PublishedProject pubProj in projContext.Projects)
            {
                Console.WriteLine("\n\t{0} : {1}", pubProj.Name, pubProj.CreatedDate.ToString());
                foreach (PublishedTask item in pubProj.Tasks)
                {
                    TasksID.Add(projTasks.Name);
                                    }
                Console.WriteLine("\nProject ID : Project name : Created date");
            }

            Console.Write("\nPress any key to exit: ");
            Console.ReadKey(false);

        }
    }
}

之后我有以下错误：

Microsoft.SharePoint.Client.Runtime.dll 中的“Microsoft.SharePoint.Client.CollectionNotInitializedException”

集合尚未初始化。它尚未被请求或请求尚未执行。可能需要明确要求。

Answer 1

您需要先加载任务：

foreach (PublishedProject pubProj in projContext.Projects)
{
   Console.WriteLine("\n\t{0} : {1}", pubProj.Name, pubProj.CreatedDate.ToString());
   projContext.Load(pubProj.Tasks);
   projContext.ExecuteQuery();
   foreach (PublishedTask item in pubProj.Tasks)
   {
      foreach (PublishedTask pubTask in pubProj.Tasks)
      {
         Console.WriteLine("\n{0}", pubTask.Name);
      }
   }
}