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备用键(Alternate Key)是个不错功能，可以保证该键值唯一，会在数据库中创建一个唯一索引，但是如果现有数据该键值就是有重复的呢？就会创建失败。
如果不解决就会带来误会，以为创建成功了，其实没有，还是会产生重复键值，这个在编号时候常用备用键来确保唯一。
一个个去查看是否创建成功太麻烦，我这里搞了个程序可以实现查看所有的备用键的创建状态，不多说了，上代码。
using Microsoft.Crm.Sdk.Messages;using Microsoft.Xrm.Sdk;using Microsoft.Xrm.Sdk.Client;using Microsoft.Xrm.Sdk.Messages;using Microsoft.Xrm.Sdk.Metadata;using Microsoft.Xrm.Sdk.Query;using System;using System.Collections.Generic;using System.Configuration;using System.IO;using System.Linq;using System.Net;using System.ServiceModel.Description;using System.Text;using System.Threading;using System.Threading.Tasks;using System.Xml;namespace RetrieveEntityAlternateKeys{ class Program { static void Main(string[] args) { try { string inputKey; ServicePointManager.SecurityProtocol = SecurityProtocolType.Ssl3 | SecurityProtocolType.Tls | SecurityProtocolType.Tls11 | SecurityProtocolType.Tls12; IServiceManagement<IOrganizationService> orgServiceMgr = ServiceConfigurationFactory.CreateManagement<IOrganizationService>(new Uri(ConfigurationManager.AppSettings["orgUrl"])); AuthenticationCredentials orgAuCredentials = new AuthenticationCredentials(); orgAuCredentials.ClientCredentials.UserName.UserName = ConfigurationManager.AppSettings["userName"]; orgAuCredentials.ClientCredentials.UserName.Password = ConfigurationManager.AppSettings["passWord"]; string needConfirm = ConfigurationManager.AppSettings["needConfirm"]; using (var orgSvc = GetProxy<IOrganizationService, OrganizationServiceProxy>(orgServiceMgr, orgAuCredentials)) { orgSvc.Timeout = new TimeSpan(8, 0, 0); WhoAmIRequest whoReq = new WhoAmIRequest(); var whoRsp = orgSvc.Execute(whoReq) as WhoAmIResponse; var userEntity = orgSvc.Retrieve("systemuser", whoRsp.UserId, new Microsoft.Xrm.Sdk.Query.ColumnSet("fullname")); Console.WriteLine(string.Format("欢迎【{0}】登陆到【{1}】", userEntity.GetAttributeValue<string>("fullname"), ConfigurationManager.AppSettings["orgUrl"])); Console.WriteLine("本程序查看实体的备用键(Alternate Key)是否都成功创建了！"); if (needConfirm == "Y") { Console.WriteLine("当前处于需要确认才会继续的模式，若要继续请输入Y然后回车确认！"); inputKey = Console.ReadLine(); if (inputKey.ToUpper() == "Y") { RetrieveAlternateKeys(orgSvc); } else { Console.WriteLine("你选择了取消运行!"); } } else { RetrieveAlternateKeys(orgSvc); } } Console.Write("程序运行完成,按任意键退出." + DateTime.Now.ToString()); Console.ReadLine(); } catch (Exception ex) { Console.WriteLine("程序运行出错：" + ex.Message + ex.StackTrace); Console.ReadLine(); } } private static void RetrieveAlternateKeys(OrganizationServiceProxy orgSvc) { const string functionName = "查看实体的备用键(Alternate Key)是否都成功创建了"; Console.WriteLine(string.Format("开始 {0} - {1}", functionName, DateTime.Now.ToString())); try { RetrieveAllEntitiesRequest request = new RetrieveAllEntitiesRequest() { EntityFilters = EntityFilters.Entity, RetrieveAsIfPublished = true }; RetrieveAllEntitiesResponse response = (RetrieveAllEntitiesResponse)orgSvc.Execute(request); foreach (EntityMetadata currentEntity in response.EntityMetadata) { RetrieveEntityRequest eReq = new RetrieveEntityRequest() { LogicalName = currentEntity.LogicalName, EntityFilters = EntityFilters.All, RetrieveAsIfPublished = true }; var eRep = (RetrieveEntityResponse)orgSvc.Execute(eReq); foreach (var item in eRep.EntityMetadata.Keys) { EntityKeyIndexStatus status = (EntityKeyIndexStatus)item.EntityKeyIndexStatus; if (status != EntityKeyIndexStatus.Active) { Console.ForegroundColor = ConsoleColor.Red; Console.WriteLine(string.Format(@"{0} - {1} - {2} - {3}", item.EntityLogicalName, item.LogicalName, item.DisplayName.UserLocalizedLabel.Label, item.EntityKeyIndexStatus.ToString())); } else { Console.ForegroundColor = ConsoleColor.White; Console.WriteLine(string.Format(@"{0} - {1} - {2} - {3}", item.EntityLogicalName, item.LogicalName, item.DisplayName.UserLocalizedLabel.Label, item.EntityKeyIndexStatus.ToString())); } } } } catch (Exception ex) { Console.WriteLine(string.Format("运行 {0} 出现异常:{1}", functionName, ex.Message + ex.StackTrace)); } Console.ForegroundColor = ConsoleColor.White; Console.WriteLine(string.Format("结束 {0} - {1}", functionName, DateTime.Now.ToString())); Console.WriteLine("================================================"); } private static TProxy GetProxy<TService, TProxy>(IServiceManagement<TService> serviceManagement,AuthenticationCredentials authCredentials) where TService : class where TProxy : ServiceProxy<TService> { Type classType = typeof(TProxy); if (serviceManagement.AuthenticationType != AuthenticationProviderType.ActiveDirectory) { AuthenticationCredentials tokenCredentials = serviceManagement.Authenticate(authCredentials); return (TProxy)classType .GetConstructor(new Type[] { typeof(IServiceManagement<TService>), typeof(SecurityTokenResponse) }) .Invoke(new object[] { serviceManagement, tokenCredentials.SecurityTokenResponse }); } return (TProxy)classType .GetConstructor(new Type[] { typeof(IServiceManagement<TService>), typeof(ClientCredentials) }) .Invoke(new object[] { serviceManagement, authCredentials.ClientCredentials }); } }}