Question

MSDN有一个将新项目添加到sharepoint列表的示例：



using System;
using Microsoft.SharePoint.Client;
using SP = Microsoft.SharePoint.Client;  

namespace Microsoft.SDK.SharePointServices.Samples
{
    class CreateListItem
    {
        static void Main()
        {   
            string siteUrl = "http://MyServer/sites/MySiteCollection"; 

            ClientContext clientContext = new ClientContext(siteUrl);
            SP.List oList = clientContext.Web.Lists.GetByTitle("Announcements");  

            ListItemCreationInformation itemCreateInfo = new ListItemCreationInformation();
            ListItem oListItem = oList.AddItem(itemCreateInfo);
            oListItem["Title"] = "My New Item!";
            oListItem["Body"] = "Hello World!";  

            oListItem.Update();

            clientContext.ExecuteQuery();         
        }
    }
}

using System; using Microsoft.SharePoint.Client; using SP = Microsoft.SharePoint.Client; namespace Microsoft.SDK.SharePointServices.Samples { class CreateListItem { static void Main() { string siteUrl = "http://MyServer/sites/MySiteCollection"; ClientContext clientContext = new ClientContext(siteUrl); SP.List oList = clientContext.Web.Lists.GetByTitle("Announcements"); ListItemCreationInformation itemCreateInfo = new ListItemCreationInformation(); ListItem oListItem = oList.AddItem(itemCreateInfo); oListItem["Title"] = "My New Item!"; oListItem["Body"] = "Hello World!"; oListItem.Update(); clientContext.ExecuteQuery(); } } }

我的问题是，此代码是否首先检索列表中存在的所有项目，然后添加新项目？
或者，它是否检索一个空列表，所以我可以以有效的方式添加项目？

谢谢，
ashilon

Answer 1

您可以随时使用Fiddler

等网络工具检查请求

在提供的示例中，既未检索列表项也未检索列表对象，请参阅以下注释：

var list = ctx.Web.Lists.GetByTitle(listTitle); //get List object reference (note, it is not initialized until requested from the server) 

var itemCreateInfo = new ListItemCreationInformation();
var listItem = list.AddItem(itemCreateInfo);   
listItem[propertyName] = propertyValue;
listItem.Update();     //prepare to create new List Item
ctx.ExecuteQuery();   //submit request to the server goes here

使用客户端OM将新项添加到SharePoint 2010列表而不检索整个列表

1 个答案: