Dynamics 365 - 插件不更新值答案

【问题标题】：Dynamics 365 - Plugin Does Not Update ValuesDynamics 365 - 插件不更新值
【发布时间】：2018-09-11 18:09:15
【问题描述】：

从昨天开始我就一直在追查这个，没有任何意义。我已经对代码的外观进行了各种排列 - 将 Decimal 类型函数更改为 String 并返回 String 而不是小数，使用十进制数，在 if 语句中对值进行硬编码（不使用变量），并使用变量本身，但似乎没有任何效果。如果我只是在 try 块的开头设置字段值，并且不执行任何类型的逻辑，则这些字段正在被更新。当我通过插件注册工具中的插件配置文件/调试单步执行代码时，我可以看到设置值的代码行正在被命中，并且没有抛出异常，但同样，值没有被更新。我什至尝试添加 service.Update(entity);但这也不起作用（当我在没有任何逻辑的情况下设置字段的值时，我不需要 service.Update 调用来保存值）。

我试图在 CRM 中写入的字段是具有 2 精度的小数类型。当然，C# 中的小数类型是 8 或 10 精度的，所以我什至尝试修剪小数，将小数转换为字符串等，但没有任何效果。

有什么想法可以帮助我弄清楚这里发生了什么吗？

我已经在这里发布了我的代码的最简单版本-在我去将小数类型函数更改为字符串等之前。

    using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.ServiceModel;
using Microsoft.Xrm.Sdk;
using Microsoft.Xrm.Sdk.Client;
using System.Net;
using System.Net.Mail;




namespace ClientNTE
{
    public class UpdateVals : IPlugin
    {
        public void Execute(IServiceProvider serviceProvider)
        {

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


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

                Entity entity = (Entity)context.InputParameters["Target"];

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


                try
                {
                    //Get current record's GUID, which will always be in the attributes collection
                    Guid MainEntityID = new Guid(entity["msdyn_workorderid"].ToString());

                    //Get related entity record's GUID from generic field value grabber function against the main entity

                    Guid RefEntityID = GetGUIDFieldValueFrmID(service, "msdyn_workorder", "msdyn_workorderid", MainEntityID, "msdyn_agreement");

                    //if it has a value, continue

                    if (RefEntityID != Guid.Empty)
                    {
                        Decimal RefEntityFieldValue = GetDecFieldValueFrmID(service, "msdyn_agreement", "msdyn_agreementid", RefEntityID, "client_ntepercent");

                        //if it has a value, continue

                        if (RefEntityFieldValue > -99999999)
                        {
                            entity["client_ntepercent"] = RefEntityFieldValue;
                        }
                    }

                }
                catch (Exception ex)
                {
                    //write errors to the CRM Plugin Trace Log
                    tracingService.Trace("clientNTE - Agreement To Work Order - ", ex.ToString());
                    //Throw error through UI
                    throw new InvalidPluginExecutionException("Error, Please See Plugin Log");
                }
            }
        }

        public Guid GetGUIDFieldValueFrmID(IOrganizationService svc, String EntityNm, String EntityIDField, Guid EntityIDValue, String ReturnFieldNm)
        {
            Guid retval = Guid.Empty;

            try
            {
                OrganizationServiceContext orgContext = new OrganizationServiceContext(svc);

                var ReturnRecords = from a in orgContext.CreateQuery(EntityNm)
                                    where (Guid)a[EntityIDField] == EntityIDValue
                                    select new
                                    {
                                        FieldVal = a[ReturnFieldNm]
                                    };

                if (ReturnRecords != null)
                {
                    foreach (var EvalRec in ReturnRecords)
                    {
                        retval = ((Microsoft.Xrm.Sdk.EntityReference)EvalRec.FieldVal).Id;
                    }
                }
                else
                {
                    retval = Guid.Empty;
                }


            }
            catch (Exception ex)
            {
                retval = Guid.Empty;
                //Throw error through UI
                throw new InvalidPluginExecutionException(ex.ToString());
            }

            return retval;
        }

        public Decimal GetDecFieldValueFrmID(IOrganizationService svc, String EntityNm, String EntityIDField, Guid EntityIDValue, String ReturnFieldNm)
        {
            Decimal retval = -99999999;

            try
            {
                OrganizationServiceContext orgContext = new OrganizationServiceContext(svc);

                var ReturnRecords = from a in orgContext.CreateQuery(EntityNm)
                                    where (Guid)a[EntityIDField] == EntityIDValue
                                    select new
                                    {
                                        FieldVal = a[ReturnFieldNm]
                                    };

                if (ReturnRecords != null)
                {
                    foreach (var EvalRec in ReturnRecords)
                    {
                        retval = Convert.ToDecimal(EvalRec.FieldVal);
                    }
                }
                else
                {
                    retval = -99999999;
                }


            }
            catch (Exception ex)
            {
                retval = -99999999;
                //Throw error through UI
                throw new InvalidPluginExecutionException(ex.ToString());
            }

            return retval;
        }

        //public static Boolean UpdateParentRecord(IOrganizationService svc, Guid ParentRecordID, String FieldValue)
        //{

        //    Boolean retval = false;

        //    try
        //    {
        //        Entity parent_entityrec = new Entity("parent_entity");

        //        parent_entityrec["fieldtoupdate"] = FieldValue;

        //        svc.Update(parent_entityrec);

        //        retval = true;

        //    }

        //    catch (Exception ex)
        //    {
        //        retval = false;
        //    }

        //    return retval;

        //}
    }
}

现在，在这里你可以看到我当前的代码，我正在做一堆疯狂的事情——首先，使用字符串类型的函数来取回十进制值。其次，调用一个函数来实际设置值，只是为了证明现有函数没有问题（并允许更轻松地进行格式化）。不管我做什么，我都不能让这该死的东西工作！

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.ServiceModel;
using Microsoft.Xrm.Sdk;
using Microsoft.Xrm.Sdk.Client;
using System.Net;
using System.Net.Mail;



namespace CLIENTNTE
{
    public class AgreementToWorkOrder : IPlugin
    {
        public void Execute(IServiceProvider serviceProvider)
        {

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


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

                Entity entity = (Entity)context.InputParameters["Target"];

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


                try
                {
                    //string Num = 12.500000.ToString();
                    //entity["CLIENT_testdecimal"] = Num;
                    //entity["CLIENT_ntepercent"] = Num;

                    //Get current record's GUID, which will always be in the attributes collection
                    Guid MainEntityID = new Guid(entity["msdyn_workorderid"].ToString());

                    //Get related entity record's GUID from generic field value grabber function against the main entity

                    Guid RefEntityID = GetGUIDFieldValueFrmID(service, "msdyn_workorder", "msdyn_workorderid", MainEntityID, "msdyn_agreement");

                    //if it has a value, continue

                    if (RefEntityID != Guid.Empty)
                    {
                        String RefEntityFieldValue = GetDecFieldValueFrmID(service, "msdyn_agreement", "msdyn_agreementid", RefEntityID, "CLIENT_ntepercent");

                        decimal decVal = Convert.ToDecimal(RefEntityFieldValue);
                        //if it has a value, continue
                        if (decVal > -99999999)
                        {
                            // entity["CLIENT_ntepercent"] = RefEntityFieldValue;
                            // entity["CLIENT_ntepercent"] = "12.5";// RefEntityFieldValue;
                            //entity["CLIENT_testdecimal"] = "13.5";// RefEntityFieldValue;
                            setDecimal(RefEntityFieldValue, serviceProvider);
                            //service.Update(entity);
                        } 
                    }

                } 
                catch (Exception ex)
                {
                    //write errors to the CRM Plugin Trace Log
                    tracingService.Trace("CLIENTNTE - Agreement To Work Order - ", ex.ToString());
                    //Throw error through UI
                    throw new InvalidPluginExecutionException("Error, Please See Plugin Log");
                }
            }
        }

        public void setDecimal(String RefEntityFieldValue, IServiceProvider serviceProvider)
        {

            IPluginExecutionContext context = (IPluginExecutionContext)serviceProvider.GetService(typeof(IPluginExecutionContext));
            //IOrganizationServiceFactory serviceFactory = (IOrganizationServiceFactory)serviceProvider.GetService(typeof(IOrganizationServiceFactory));
            //IOrganizationService service = serviceFactory.CreateOrganizationService(context.UserId);
            //ITracingService tracingService = (ITracingService)serviceProvider.GetService(typeof(ITracingService));
            Entity entity = (Entity)context.InputParameters["Target"];
            //Guid MainEntityID = new Guid(entity["msdyn_workorderid"].ToString());
            //Guid RefEntityID = GetGUIDFieldValueFrmID(service, "msdyn_workorder", "msdyn_workorderid", MainEntityID, "msdyn_agreement");

            //String RefEntityFieldValue = GetDecFieldValueFrmID(service, "msdyn_agreement", "msdyn_agreementid", RefEntityID, "CLIENT_ntepercent"); */

            // entity["CLIENT_testdecimal"] = RefEntityFieldValue;
            entity["CLIENT_testdecimal"] = 12;
            entity["CLIENT_ntepercent"] = RefEntityFieldValue;


        }

        public Guid GetGUIDFieldValueFrmID(IOrganizationService svc, String EntityNm, String EntityIDField, Guid EntityIDValue, String ReturnFieldNm)
        {
            Guid retval = Guid.Empty;

            try
            {
                OrganizationServiceContext orgContext = new OrganizationServiceContext(svc);

                var ReturnRecords = from a in orgContext.CreateQuery(EntityNm)
                                    where (Guid)a[EntityIDField] == EntityIDValue
                                    select new
                                    {
                                        FieldVal = a[ReturnFieldNm]
                                    };

                if (ReturnRecords != null)
                {
                    foreach (var EvalRec in ReturnRecords)
                    {
                        retval = ((Microsoft.Xrm.Sdk.EntityReference)EvalRec.FieldVal).Id;
                    }
                }
                else
                {
                    retval = Guid.Empty;
                }


            }
            catch (Exception ex)
            {
                retval = Guid.Empty;

                throw new InvalidPluginExecutionException(ex.ToString());
            }

            return retval;
        }

        public String GetDecFieldValueFrmID(IOrganizationService svc, String EntityNm, String EntityIDField, Guid EntityIDValue, String ReturnFieldNm)
        {
            Decimal retval = -99999999;
            String stringVal = "";

            try
            {
                OrganizationServiceContext orgContext = new OrganizationServiceContext(svc);

                var ReturnRecords = from a in orgContext.CreateQuery(EntityNm)
                                    where (Guid)a[EntityIDField] == EntityIDValue
                                    select new
                                    {
                                        FieldVal = a[ReturnFieldNm]
                                    };

                if (ReturnRecords != null)
                {
                    foreach (var EvalRec in ReturnRecords)
                    {
                        retval = Convert.ToDecimal(EvalRec.FieldVal);
                        // stringVal = retval.ToString().TrimEnd('0', '.');
                        stringVal = retval.ToString();
                    }
                }
                else
                {
                    retval = -99999999;
                }


            }
            catch (Exception ex)
            {
                retval = -99999999;
                throw new InvalidPluginExecutionException(ex.ToString());
            }

            return stringVal;
        }
    }
}

任何和所有输入表示赞赏。

【问题讨论】：

您是否检查过您的插件步骤是否未注册以运行后期操作？我看不到对 IOrganizationService.Update 方法的调用，所以我认为这是预操作。
我应该在原始帖子中包含更多关于我的插件的上下文，我的错。它运行工单的 OnCreate，从不更新，只是从协议（父）中提取数据以填充 WO（子）。 OOB 映射不起作用，并且使用 Workflows 妨碍了 Work Order 实体的其他 onChange 插件逻辑，因此我不得不将其分解为自己的代码段。这被注册为一个预验证插件（我完全赞成改变它 - 我仍然没有完全理解 pre-val，pre-op，post-op）。

标签： c# dynamics-crm microsoft-dynamics dynamics-365

【解决方案1】：

我的回复基于以下关于您的代码的假设：

用例是，当使用 msdyn_agreement 字段中的值创建 msdyn_workorder 记录时，应将工单上的 client_ntepercent 值设置为协议上的 client_ntepercent 值。
插件在预操作阶段注册，用于 msdyn_workorder 实体上的 Create 消息。

建议的修复需要进行以下更改：

代码需要从目标实体获取 msdyn_agreement 值，而不是执行检索查询，因为工作订单尚未保存到数据库中。

您的问题的原因可能是您正在查询工单记录以从预操作插件中获取协议值。工单尚未保存在数据库中。

更新代码：

public class UpdateVals : IPlugin
{
    public void Execute(IServiceProvider serviceProvider)
    {

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

        if (context.InputParameters.Contains("Target") && context.InputParameters["Target"] is Entity && 
            context.PreEntityImages != null && context.PreEntityImages.Contains("PreImage"))
        {
            Entity target = (Entity)context.InputParameters["Target"];

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

            try
            {
                //Get current record's GUID, which will always be in the attributes collection
                Guid MainEntityID = target.GetAttributeValue<Guid>("msdyn_workorderid");

                EntityReference RefEntityID = null;
                if (target.Attributes.Contains("msdyn_agreement"))
                {
                    RefEntityID = target.GetAttributeValue<EntityReference>("msdyn_agreement");
                }

                //if it has a value, continue
                if (RefEntityID != null)
                {
                    Decimal RefEntityFieldValue = GetDecFieldValueFrmID(service, "msdyn_agreement", "msdyn_agreementid", RefEntityID.Id, "client_ntepercent");

                    //if it has a value, continue
                    if (RefEntityFieldValue > -99999999)
                    {
                        target["client_ntepercent"] = RefEntityFieldValue;
                    }
                }

            }
            catch (Exception ex)
            {
                //write errors to the CRM Plugin Trace Log
                tracingService.Trace("clientNTE - Agreement To Work Order - ", ex.ToString());
                //Throw error through UI
                throw new InvalidPluginExecutionException("Error, Please See Plugin Log");
            }
        }
    }

    public Decimal GetDecFieldValueFrmID(IOrganizationService svc, String EntityNm, String EntityIDField, Guid EntityIDValue, String ReturnFieldNm)
    {
        Decimal retval = -99999999;

        try
        {
            OrganizationServiceContext orgContext = new OrganizationServiceContext(svc);

            var ReturnRecords = from a in orgContext.CreateQuery(EntityNm)
                                where (Guid)a[EntityIDField] == EntityIDValue
                                select new
                                {
                                    FieldVal = a[ReturnFieldNm]
                                };

            if (ReturnRecords != null)
            {
                foreach (var EvalRec in ReturnRecords)
                {
                    retval = Convert.ToDecimal(EvalRec.FieldVal);
                }
            }
            else
            {
                retval = -99999999;
            }
        }
        catch (Exception ex)
        {
            retval = -99999999;
            //Throw error through UI
            throw new InvalidPluginExecutionException(ex.ToString());
        }

        return retval;
    }
}

【讨论】：

感谢您抽出宝贵的时间阅读，特别是因为我的代码中缺少一些信息。另外，你的名字听起来很熟悉，就像我们过去可能合作过什么的......任何人......正如我上面所说，至少现在，这只是简单地运行 WO 的 OnCreate，并将数据拉下来从协议到 WO。一旦它被创建，我们不想再次从协议中更新数据（我们希望协议：wo 关系是一个“时间点”——用户也可以根据需要进行更新）。我现在要把你的代码拉进 VS 并测试一下。谢谢！
@BrianFrick 感谢您提供更多信息。我将根据仅用于创建的插件更新答案。问题应该是一样的。在预创建中查询工单将一无所获，因为工单尚未保存到数据库中。但是，在create中没有pre-image，所以你可以从目标中获取协议值。