Task: Update Mobile Phone for Contact record where Full Name = “Arun Potti”

Solution: Follow the below steps,

Step 1: Open Visual Studio and Create Console Application Project.

Step 2: First we have to establish connection to CRM. Please follow my earlier post Connect to CRM Online or On-premise using C# SDK.

Step 3: Generate Early bound class using Crmsvcutil.exe. Please follow my earlier post Generate Early bound Class using CrmSvcUtil.Exe in CRM.

Step 4: Add EarlyBound.cs to the project.

Step 5: Include the namespace using EarlyBound.cs.

Step 6: Below method will update Contact record,

updateContactRecord("1234567890");
      public static void updateContactRecord(string phoneNumber)
       {
           using (var context = new ServiceContext(_service))
           {
               Contact conRecord = context.ContactSet.FirstOrDefault(c => c.FullName == "Arun Potti");
               if (conRecord != null)
               {
                   conRecord.MobilePhone = phoneNumber;
                   context.UpdateObject(conRecord);
                   if (context.SaveChanges().Count > 0)
                   {
                       Console.WriteLine("Record Updated Successfully");
                       Console.ReadKey();
                   }
               }
           }
       }

Step 7: Final Code will be like below, 

using Microsoft.Crm.Sdk.Messages;
using Microsoft.Xrm.Sdk;
using Microsoft.Xrm.Sdk.Client;
using System;
using System.Collections.Generic;
using System.Linq;
using System.ServiceModel.Description;
using System.Text;
using System.Threading.Tasks;
using EarlyBound;
namespace LinqToCRM
{
   class Program
   {
       static IOrganizationService _service;
       static void Main(string[] args)
       {
           ConnectToMSCRM("arunpotti@MyOrg.onmicrosoft.com", "Password", "https://MyOrg.api.crm5.dynamics.com/XRMServices/2011/Organization.svc");
           Guid userid = ((WhoAmIResponse)_service.Execute(new WhoAmIRequest())).UserId;
           if (userid == Guid.Empty) return;
           updateContactRecord("1234567890");
       }
       public static void ConnectToMSCRM(string UserName, string Password, string SoapOrgServiceUri)
       {
           try
           {
               ClientCredentials credentials = new ClientCredentials();
               credentials.UserName.UserName = UserName;
               credentials.UserName.Password = Password;
               Uri serviceUri = new Uri(SoapOrgServiceUri);
               OrganizationServiceProxy proxy = new OrganizationServiceProxy(serviceUri, null, credentials, null);
               proxy.EnableProxyTypes();
               _service = (IOrganizationService)proxy;
           }
           catch (Exception ex)
           {
               Console.WriteLine("Error while connecting to CRM " + ex.Message);
               Console.ReadKey();
           }
       }
       public static void updateContactRecord(string phoneNumber)
       {
           using (var context = new ServiceContext(_service))
           {
               Contact conRecord = context.ContactSet.FirstOrDefault(c => c.FullName == "Arun Potti");
               if (conRecord != null)
               {
                   conRecord.MobilePhone = phoneNumber;
                   context.UpdateObject(conRecord);
                   if (context.SaveChanges().Count > 0)
                   {
                       Console.WriteLine("Record Updated Successfully");
                       Console.ReadKey();
                   }
               }
           }
       }
   }
}

Step 8: Execute the project for the below output,

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