SharePoint 2010中的客户端模型

1.介绍

客户端模型是SharePoint 2010才提供的，可以更灵活的在任何客户端设备中操作SharePoint对象，在2007版本中没有客户端模型，2010中有三种客户端模型JavaScript，SilverLight，.NET Managed。下面是对比情况：







2.原理

当我们使用客户端模型访问SharePoint 2010服务器对象的时候，请求首先会被打包成XML格式的SharePoint对象模型，然后在由客户端发送到服务器端，在服务器端调用服务器端的对象模型，。然后得到反应结果以JSON

格式发给客户端对象模型，客户端模型在解析得到的结果，展现给前端，如下图：





3.客户端模型对象

服务器端	客户端	Javascript
Microsoft.SharePoint.SPContext	Microsoft.SharePoint.Client.ClientContext	SP.ClientContext
Microsoft.SharePoint.SPSite	Microsoft.SharePoint.Client.Site	SP.Site
Microsoft.SharePoint.SPWeb	Microsoft.SharePoint.Client.Web	SP.Web
Microsoft.SharePoint.SPList	Microsoft.SharePoint.Client.List	SP.List
Microsoft.SharePoint.SPListItem	Microsoft.SharePoint.Client.ListItem	SP.ListItem
Microsoft.SharePoint.SPField	Microsoft.SharePoint.Client.Field	SP.Field

4.一些例子代码

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Net;

namespace OM
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}

private void button1_Click(object sender, EventArgs e)
{
Cursor old = this.Cursor;
this.Cursor = Cursors.WaitCursor;

Microsoft.SharePoint.Client.ClientContext clientContext = new Microsoft.SharePoint.Client.ClientContext("http://moss2010/sites/test");
NetworkCredential nwc = CredentialCache.DefaultNetworkCredentials;
clientContext.Credentials = nwc;
Microsoft.SharePoint.Client.Web web = clientContext.Web;

clientContext.Load(web);
clientContext.ExecuteQuery();

this.lblSiteTitle.Text = web.Title;

this.Cursor = old;

}

private void button2_Click(object sender, EventArgs e)
{
Cursor old = this.Cursor;
this.Cursor = Cursors.WaitCursor;

Microsoft.SharePoint.Client.ClientContext clientContext = new Microsoft.SharePoint.Client.ClientContext("http://moss2010/sites/test");
NetworkCredential nwc = CredentialCache.DefaultNetworkCredentials;
clientContext.Credentials = nwc;
Microsoft.SharePoint.Client.Web web = clientContext.Web;

var query = from list
in clientContext.Web.Lists
where list.Title == "SharePoint Team Members"
select list;

var result = clientContext.LoadQuery(query);
clientContext.ExecuteQuery();

Microsoft.SharePoint.Client.List listMember = result.SingleOrDefault<Microsoft.SharePoint.Client.List>();

Microsoft.SharePoint.Client.CamlQuery caml = new Microsoft.SharePoint.Client.CamlQuery();
caml.ViewXml = @"<View><Query></Query></View>";

Microsoft.SharePoint.Client.ListItemCollection listItems = listMember.GetItems(caml);
clientContext.Load(listItems);
clientContext.ExecuteQuery();

List<Employee> allDatas = new List<Employee>();
foreach (Microsoft.SharePoint.Client.ListItem item in listItems)
{
allDatas.Add(new Employee(item["Title"], item["Age"], item["Sex"]));
}
dataGridView1.DataSource = allDatas;

this.Cursor = old;
}

private void button3_Click(object sender, EventArgs e)
{
Microsoft.SharePoint.Client.ClientContext clientContext = new Microsoft.SharePoint.Client.ClientContext("http://moss2010/sites/test");
NetworkCredential nwc = CredentialCache.DefaultNetworkCredentials;
clientContext.Credentials = nwc;
Microsoft.SharePoint.Client.Web web = clientContext.Web;

var query = from list
in clientContext.Web.Lists
where list.Title == "SharePoint Team Members"
select list;

var result = clientContext.LoadQuery(query);
clientContext.ExecuteQuery();

Microsoft.SharePoint.Client.List listMember = result.SingleOrDefault<Microsoft.SharePoint.Client.List>();

Microsoft.SharePoint.Client.CamlQuery caml = new Microsoft.SharePoint.Client.CamlQuery();
caml.ViewXml = @"<View><Query><Where><Eq><FieldRef Name='Employee_x0020_Name' /><Value Type='Text'>" + tbxInput.Text + "</Value></Eq></Where></Query></View>";

Microsoft.SharePoint.Client.ListItemCollection listItems = listMember.GetItems(caml);
clientContext.Load(listItems);
clientContext.ExecuteQuery();

this.lblOutput.Text = listItems[0].FieldValues["Title"].ToString();

this.Cursor = old;
}
}

public class Employee
{
public Employee(object title, object age, object sex)
{
this.Age = age;
this.Sex = sex;
this.Title = title;
}
public object Title { get; set; }
public object Age { get; set; }
public object Sex { get; set; }
}
}