Microsoft CRM 2011插件 - 简单问题

Question

我正在尝试编写一个插件来在Microsoft CRM 2011中创建一个新的联系人实体。我还没有在网上找到任何有用的信息，我觉得我一直在抨击我的头一整天都是砖墙。我在下面发布的代码给了我一个错误，说“名称'服务'在当前上下文中不存在”。有谁能告诉我发生了什么事吗？

// <copyright file="PreValidateContactCreate.cs" company=""> 
// Copyright (c) 2013 All Rights Reserved 
// </copyright> 
// <author></author> 
// <date>8/6/2013 4:22:10 PM</date> 
// <summary>Implements the PreValidateContactCreate Plugin.</summary> 
// <auto-generated> 
//  This code was generated by a tool. 
//  Runtime Version:4.0.30319.1 
// </auto-generated> 
namespace Plugins1 
{ 
    using System; 
    using System.ServiceModel; 
    using System.Collections.Generic; 
    using Microsoft.Xrm.Sdk; 
    using Microsoft.Crm.Sdk.Messages; 
    using Microsoft.Xrm.Sdk.Client; 
    using Microsoft.Xrm.Sdk.Discovery; 
    using Microsoft.Xrm.Sdk.Metadata; 
    using Microsoft.Xrm.Sdk.Query; 


    /// <summary> 
    /// PreValidateContactCreate Plugin. 
    /// </summary>  
    public class PreValidateContactCreate: Plugin 
    { 
     /// <summary> 
     /// Initializes a new instance of the <see cref="PreValidateContactCreate"/> class. 
     /// </summary> 
     public PreValidateContactCreate() 
      : base(typeof(PreValidateContactCreate)) 
     { 
      base.RegisteredEvents.Add(new Tuple<int, string, string, Action<LocalPluginContext>>(10, "Create", "contact", new Action<LocalPluginContext>(ExecutePreValidateContactCreate))); 

      // Note : you can register for more events here if this plugin is not specific to an individual entity and message combination. 
      // You may also need to update your RegisterFile.crmregister plug-in registration file to reflect any change. 
     } 

     /// <summary> 
     /// Executes the plug-in. 
     /// </summary> 
     /// <param name="localContext">The <see cref="LocalPluginContext"/> which contains the 
     /// <see cref="IPluginExecutionContext"/>, 
     /// <see cref="IOrganizationService"/> 
     /// and <see cref="ITracingService"/> 
     /// </param> 
     /// <remarks> 
     /// For improved performance, Microsoft Dynamics CRM caches plug-in instances. 
     /// The plug-in's Execute method should be written to be stateless as the constructor 
     /// is not called for every invocation of the plug-in. Also, multiple system threads 
     /// could execute the plug-in at the same time. All per invocation state information 
     /// is stored in the context. This means that you should not use global variables in plug-ins. 
     /// </remarks> 
     protected void ExecutePreValidateContactCreate(LocalPluginContext localContext) 
     { 
      if (localContext == null) 
      { 
       throw new ArgumentNullException("localContext"); 
      } 

      // TODO: Implement your custom Plug-in business logic. 


      Entity Contact = new Entity("contact"); 
      Contact.Attributes["firstname"] = "SomeName"; 
      Contact.Attributes["lastname"] = "SomeSurname"; 

      service.Create(Contact); 
     } 
    } 
} 

Answer 1

由于服务尚未定义，因此正在引发错误。它需要先定义，然后才能调用service.Create。

以下是我用于插件的一些代码，您可能会发现它们很有用。看起来比你的例子简单一点。

编辑：我已经修改了代码来显示一个创建和更新

using Microsoft.Xrm.Sdk; 
using Microsoft.Xrm.Sdk.Messages; 
using Microsoft.Xrm.Sdk.Query; 
using System; 
using System.Collections.Generic; 
using System.Linq; 
using System.ServiceModel; 

namespace PluginSample 
{ 
    public class ContactSample : IPlugin 
    { 
     public void Execute(IServiceProvider serviceProvider) 
     { 
      // Get the context 
      IPluginExecutionContext context = (IPluginExecutionContext)serviceProvider.GetService(typeof(IPluginExecutionContext)); 

      try 
      { 
       IOrganizationServiceFactory factory = (IOrganizationServiceFactory)serviceProvider.GetService(typeof(IOrganizationServiceFactory)); 
       IOrganizationService service = factory.CreateOrganizationService(context.UserId); 

       if (context.MessageName == "Create") 
       { 
        // Creates a contact 
        Entity contact = new Entity("contact"); 
        contact.Attributes.Add("firstname", "SomeName"); 
        contact.Attributes.Add("lastname", "SomeSurname"); 
        service.Create(contact); 
       } 
       else if (context.MessageName == "Update") 
       { 
        if (context.InputParameters.Contains("Target") && context.InputParameters["Target"] is Entity) 
        { 
         // Update contact 
         Entity contact = new Entity("contact"); 
         contact.Id = new Guid("EBFB262C-5EFF-E211-8BEB-1CC1DEEAE7EC"); 
         contact.Attributes.Add("firstname", "Name Changed"); 
         service.Update(contact); 
        } 
       } 

      } 
      catch (Exception generalException) 
      { 
       throw new InvalidPluginExecutionException("Plugin Failed - Execute :-(", generalException); 
      } 
     } 
    } 
} 

Answer 2

使用localContext参数去的组织服务。

*<param name="localContext">The <see cref="LocalPluginContext"/> which contains the 
     /// <see cref="IPluginExecutionContext"/>, 
     /// <see cref="IOrganizationService"/>* 

Answer 3

public class CreateRecord : IPlugin 
    { 
     /// <summary> 
     /// Execute Method 
     /// </summary> 
     /// <param name="serviceProvider">IServiceProvider object.</param> 
     public void Execute(IServiceProvider serviceProvider) 
     { 
      //Obtain the tracing service. 
      ITracingService tracingService = (ITracingService)serviceProvider.GetService(typeof(ITracingService)); 
      if (tracingService == null) 
       throw new Exception("Unable to obtain tracing service."); 

      //Obtain the execution context from the service provider. 
      IPluginExecutionContext context = (IPluginExecutionContext)serviceProvider.GetService(typeof(IPluginExecutionContext)); 
      if (context == null) 
       throw new Exception("Unable to obtain Plugin Execution context."); 

      //Obtain the organization service reference 
      IOrganizationServiceFactory serviceFactory = (IOrganizationServiceFactory)serviceProvider.GetService(typeof(IOrganizationServiceFactory)); 
      if (serviceFactory == null) 
       throw new Exception("Unable to obtain Organization service factory."); 

      IOrganizationService service = serviceFactory.CreateOrganizationService(context.UserId); 
      if (service == null) 
       throw new Exception("Unable to obtain organization service."); 

      Entity contact = new Entity("contact"); 
      contact["firstname"] = "Your First Name"; 
      contact["lastname"] = "Your Last Name"; 
      Guid contactId = service.Create(contact); 
     } 
    } 

上面的代码是创建一个记录，在CRM这种情况下，接触的样本。联系人应保存创建的记录。您可以在活动的联系人视图中找到与其他联系人创建的记录。

希望这会有所帮助。让我知道你是否需要更多的帮助。快乐学习！ :)