SharePoint 2013 CSOM上传单据和更改列值

using System;
using Microsoft.SharePoint.Client;

class Program
{
    static void Main()
    {
        string siteUrl = "https://example.sharepoint.com/sites/site";
        string username = "username";
        string password = "password";

        // 连接到SharePoint网站
        using (ClientContext context = new ClientContext(siteUrl))
        {
            // 提供身份验证凭据
            context.Credentials = new SharePointOnlineCredentials(username, password);

            // 访问目标列表
            List targetList = context.Web.Lists.GetByTitle("Documents");

            // 上传单据
            ListItemCreationInformation newItem = new ListItemCreationInformation();
            ListItem item = targetList.AddItem(newItem);
            item["Title"] = "New Document";
            item["Category"] = "General";
            item.Update();

            // 更改列值
            ListItem targetItem = targetList.GetItemById(1);
            targetItem["Title"] = "Updated Title";
            targetItem.Update();

            // 执行操作并加载结果
            context.ExecuteQuery();

            Console.WriteLine("Document uploaded and column value updated successfully.");
        }
    }
}