Update CRM 2011 using OrganizationServiceContext - dynamics-crm

Question

How do you update records in CRM 2011 using OrganizationServiceContext? Can anyone provide a simple example? Thanks!
This is my code:
using System.Collections.Generic;
using System.Linq;
using System.ServiceModel.Description;
using Microsoft.Xrm.Sdk.Client;
using Microsoft.Xrm.Client;
using Microsoft.Xrm.Sdk;
using Microsoft.Xrm.Sdk.Linq;
using Microsoft.Xrm.Sdk.Messages;
using Microsoft.Xrm.Client.Services;
using System.Data.Services;
using System.Text.RegularExpressions;
using System.Web.UI.HtmlControls;
using System.Diagnostics;
using System.Web.Security;
using System.Data;
using System.Collections.Specialized;
using System.Web.SessionState;
using System;
using System.Web.Profile;
using System.Configuration;
using System.Web.UI.WebControls;
using System.Collections;
using System.Web.UI.WebControls.WebParts;
using System.Web;
using System.Web.UI;
using System.Drawing;
using System.Text;
using System.Web.Caching;
using Telerik.Web.UI;
using Microsoft.Xrm.Sdk.Discovery;
using Microsoft.Data.Entity;
using System.Data.Entity;
public partial class LeadShareEditPanel : System.Web.UI.UserControl
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void imgBtnSaveNote_Click(object sender, ImageClickEventArgs e)
{
Uri organizationUri = new Uri("http://server/CRMT/XRMServices/2011/Organization.svc");
Uri homeRealmUri = null;
ClientCredentials credentials = new ClientCredentials();
credentials.Windows.ClientCredential = new System.Net.NetworkCredential("user", "password", "domain");
OrganizationServiceProxy orgProxy = new OrganizationServiceProxy(organizationUri, homeRealmUri, credentials, null);
// Get the IOrganizationService
//Get OrganizationServiceContext -the organization service context class implements the IQueryable interface and
//a .NET Language-Integrated Query (LINQ) query provider so we can write LINQ queries against Microsoft Dynamics CRM data.
using (var service = new OrganizationService(orgProxy))
using (var context = new CrmOrganizationServiceContext(service))
{
var contact = context.CreateQuery<Contact>().First(c => c.FirstName == "Bob");
contact.JobTitle = "Developer";
context.UpdateObject(contact);
context.SaveChanges();
contact.EMailAddress1 = "bob#contoso.com";
context.UpdateObject(contact);
context.SaveChanges();
}
}
}

Answer 1

This is an example from the 5.05 SDK help file
using (var service = new OrganizationService(connection))
using (var context = new CrmOrganizationServiceContext(service))
{
var contact = context.CreateQuery<Contact>().First(c => c.FirstName == "Bob");
contact.JobTitle = "Developer";
context.UpdateObject(contact);
context.SaveChanges();
contact.EMailAddress1 = "bob#contoso.com";
context.UpdateObject(contact);
context.SaveChanges();
}
If you haven't already you can download the SDK from here crm 2011 sdk . I would highly reccomend it as it has lots of great samples. The current version is 5.06.
Hope that helps.