CRM Dynamics 插件错误：字典中不存在给定的键（当我在 PhoneCall Create 上触发插件时）

Question

当我在 CRM Dynamics 2015 中的 phoncall 创建记录上启动插件时，我收到以下错误，

public void Execute(IServiceProvider serviceProvider) { ITracingService trackingService = (ITracingService)serviceProvider.GetService(typeof(ITracingService));

        IPluginExecutionContext context = (IPluginExecutionContext)serviceProvider.GetService(typeof(IPluginExecutionContext));

        IOrganizationServiceFactory serviceFactory = (IOrganizationServiceFactory)serviceProvider.GetService(typeof(IOrganizationServiceFactory));
        IOrganizationService service = serviceFactory.CreateOrganizationService(context.UserId);



        if (context.InputParameters.Contains("Target") && context.InputParameters["Target"] is Entity)
        {
            Entity entity = (Entity)context.InputParameters["Target"];

            if (context.MessageName == "Create")
            {
                try
                {
                    Entity phoneCall = new Entity("phonecall");

                    Int64 NumberToCall = (Int64)phoneCall.Attributes["new_identity"];
                    Int64 ReceiveCallOn = (Int64)phoneCall.Attributes["new_destination"];
                    var apiKey = phoneCall.Attributes["new_apikey"].ToString();
                    Int64 fId = (Int64)phoneCall.Attributes["new_fid"];

                    Guid phoneResponse = service.Create(phoneCall);

                    BasicHttpBinding binding = new BasicHttpBinding();
                    binding.Name = "BasicHttpBinding_IService1";
                    binding.HostNameComparisonMode = HostNameComparisonMode.StrongWildcard;
                    binding.MessageEncoding = WSMessageEncoding.Text;
                    binding.TransferMode = TransferMode.Buffered;
                    binding.UseDefaultWebProxy = true;
                    binding.Security.Mode = BasicHttpSecurityMode.TransportCredentialOnly;
                    binding.Security.Transport.ClientCredentialType = HttpClientCredentialType.Windows;
                    binding.Security.Message.ClientCredentialType = BasicHttpMessageCredentialType.UserName;

                    binding.SendTimeout = new TimeSpan(0, 10, 0);

                    EndpointAddress endPointAddress = new EndpointAddress("http://localhost:62009/Service1.svc");


                    ServiceReference1.Service1Client client = new ServiceReference1.Service1Client(binding, endPointAddress);

                    client.ClientCredentials.Windows.AllowedImpersonationLevel = System.Security.Principal.TokenImpersonationLevel.Impersonation;

                    client.ChannelFactory.Credentials.Windows.ClientCredential = new System.Net.NetworkCredential("MSCRM\\Thabiso", "1pft?MG6bscu?g", "MSCRM0");

                    client.WebCall(NumberToCall, ReceiveCallOn, apiKey, fId);

                }
                catch (FaultException<OrganizationServiceFault> ex)
                {
                    tracingService.Trace("MyPlugin: {0}", ex.ToString());
                    throw;

                }
            }

Answer 1

我相信答案是您的电话记录不包含您所指的字段之一。实际上它不包含任何值...因为您实例化了实体的新实例，因此字段值无法从任何地方出现...我建议删除行

Entity phoneCall = new Entity("phonecall");

并将 phoneCall 替换为行中的实体：

                Int64 NumberToCall = (Int64)phoneCall.Attributes["new_identity"];
                Int64 ReceiveCallOn = (Int64)phoneCall.Attributes["new_destination"];
                var apiKey = phoneCall.Attributes["new_apikey"].ToString();
                Int64 fId = (Int64)phoneCall.Attributes["new_fid"];

不知道为什么要在...之后再创建一个电话 你能解释一下你的情况吗？

Answer 2

我相信您要做的是从正在创建的电话记录中获取属性。如果是这样，那么代码应该是这样的。

Int64 NumberToCall = entity.Attributes.Contains("new_identity")?(Int64)entity.Attributes["new_identity"]:0;
Int64 ReceiveCallOn = entity.Attributes.Contains("new_destination")?(Int64)entity.Attributes["new_destination"]:0;
var apiKey = entity.Attributes.Contains("new_apikey")?entity.Attributes["new_apikey"].ToString():0;
Int64 fId = entity.Attributes.Contains("new_fid")?(Int64)entity.Attributes["new_fid"]:0;

我的意思是说，在您从上下文中分配“目标”的地方，不要使用“电话”，而是使用“实体”。在使用它之前还要尝试检查该属性在实体中是否可用以避免此类错误。

如果属性不存在，请替换为您希望使用的默认值。