在C#中获取SharePoint LookUpValue

using Microsoft.SharePoint.Client;
using System;

class Program
{
    static void Main()
    {
        // SharePoint站点URL
        string siteUrl = "https://your-sharepoint-site-url";
        // 列表名称
        string listName = "YourListName";
        // Lookup字段名称
        string lookupFieldName = "LookupField";
        // 目标项ID
        int itemId = 1; // 假设我们要获取ID为1的项的LookupValue

        using (ClientContext context = new ClientContext(siteUrl))
        {
            // 获取列表
            List list = context.Web.Lists.GetByTitle(listName);
            // 获取项
            ListItem item = list.GetItemById(itemId);
            // 加载Lookup字段
            context.Load(item, i => i[lookupFieldName]);
            // 执行查询
            context.ExecuteQuery();

            // 输出LookupValue
            Console.WriteLine($"LookupValue for item {itemId}: {item[lookupFieldName]}");
        }
    }
}