public void Run(StringconnectionString, boolpromptforDelete) {
   try {
      
      // Establish a connection to the organization web service using CrmConnection.
      Microsoft.Xrm.Client.CrmConnection connection =
         CrmConnection.Parse(connectionString);
      
      // Obtain an organization service proxy.
      // The using statement assures that the service proxy will be properly disposed.
      using(_orgService = new OrganizationService(connection)) {

         //Create any entity records this sample requires.
         CreateRequiredRecords();
         
         // Obtain information about the logged on user from the web service.
         Guid userid = ((WhoAmIResponse)_orgService.Execute(new WhoAmIRequest())).UserId;
         SystemUser systemUser = (SystemUser)_orgService.Retrieve("systemuser",userid,
            new ColumnSet(newstring[]{"firstname","lastname"}));
         
         Console.WriteLine("Logged on user is {0} {1}.",
            systemUser.FirstName,systemUser.LastName);

         // Retrieve the version of Microsoft Dynamics CRM.
         RetrieveVersionRequest versionRequest = new RetrieveVersionRequest();
         RetrieveVersionResponse versionResponse =
            (RetrieveVersionResponse)_orgService.Execute(versionRequest);
         Console.WriteLine("Microsoft Dynamics CRM version {0}.",
            versionResponse.Version);
         
         // Instantiate an account object. Note the use of option set
         enumerations defined in OptionSets.cs.
         
         // Refer to the Entity Metadata topic in the SDK documentation to
         determine which attributes must
         
         // be set for each entity.
         Account account = new Account{Name = "Fourth Coffee"};
         account.AccountCategoryCode = new OptionSetValue(
            (int)AccountAccountCateg oryCode.PreferredCustomer);
         account.CustomerTypeCode = new OptionSetValue(
            (int)AccountCustomerTypeCod e.Investor);
         
         // Create an account record named Fourth Coffee.
         _accountId = _orgService.Create(account);
         Console.Write("{0} {1} created, ",account.LogicalName,account.Name);
         
         // Retrieve the several attributes from the new account.
         ColumnSet cols = new ColumnSet(
            new String[]{"name","address1_postalcode","lastusedincampaign"});
         Account retrievedAccount =
            (Account)_orgService.Retrieve("account", _accountId, cols);
         Console.Write("retrieved, ");

         // Update the postal code attribute.
         retrievedAccount.Address1_PostalCode = "98052";

         // The address 2 postal code was set accidentally, so set it to null.
         retrievedAccount.Address2_PostalCode = null;

         // Shows use of a Money value.
         retrievedAccount.Revenue = new Money(5000000);

         // Shows use of a Boolean value.
         retrievedAccount.CreditOnHold = false;
         
         // Update the account record.
         _orgService.Update(retrievedAccount);
         Console.WriteLine("and updated.");
         
         // Delete any entity records this sample created.
         DeleteRequiredRecords(promptforDelete);
      } 
   } 
   // Catch any service fault exceptions that Microsoft Dynamics CRM throws.
   catch(FaultException) {

      // You can handle an exception here or pass it back to the calling method.
      throw;
   }
}

Microsoft.Xrm.Client.CrmConnection connection = CrmConnection.Parse(connectionString);

_orgService = new OrganizationService(connection) 

Account account = new Account{Name = "Fifth Coffee"}; 
account.AccountCategoryCode = new OptionSetValue(
   (int)AccountAccountCategoryCode.P referredCustomer); 
account.CustomerTypeCode = new OptionSetValue(
   (int)AccountCustomerTypeCode.Investor); 

_accountId = _orgService.Create(account); 

ColumnSet cols = new ColumnSet(new String[]{
   "name","address1_postalcode","lastusedincampaign"}); 
Account retrievedAccount = 
   (Account)_orgService.Retrieve("account", _accountId, cols); 

retrievedAccount.Address1_PostalCode = "98052"; 
retrievedAccount.Address2_PostalCode = null; 
retrievedAccount.Revenue = new Money(5000000); 
retrievedAccount.CreditOnHold = false; 

_orgService.Update(retrievedAccount); 

_orgService.Delete(Account.EntityLogicalName, _accountId);