MS CRM2011 PlugIn中 建立和删除关系

此PlugIn 是update的时候执行的

// 获取执行上下文IPluginExecutionContext context = (IPluginExecutionContext)serviceProvider.GetService(typeof(IPluginExecutionContext));

// InputParameters属性包含所有输入参数数据 if (context.InputParameters.Contains("Target") && context.InputParameters["Target"] is Entity){

　　// 从输入参数中获取Target参数     Entity entity = (Entity)context.InputParameters["Target"];　  //检测输入的Target参数，判断其逻辑名称是否是该实体.　　if (entity.LogicalName == "crm_media_articles")

　　{

　　　　try           {                        if (entity.Attributes.Contains("crm_media_articlesid"))                        {                            Guid regardingobjectid = new Guid(entity.Attributes["crm_media_articlesid"].ToString());                            //创建SERVICE                            IOrganizationServiceFactory serviceFactory = (IOrganizationServiceFactory)serviceProvider.GetService(typeof(IOrganizationServiceFactory));                            IOrganizationService _service = serviceFactory.CreateOrganizationService(context.UserId);                            //渠道和媒体稿件关系                            EntityReferenceCollection relatedEntities = new EntityReferenceCollection();                            Relationship relationship = new Relationship("crm_crm_media_articles_crm_channel");//关系名                            //查询原来的关系                            ConditionExpression condition1 = new ConditionExpression();                            condition1.AttributeName = "crm_media_articlesid";                            condition1.Operator = ConditionOperator.Equal;                            condition1.Values.Add(regardingobjectid);                            FilterExpression filter1 = new FilterExpression();                            filter1.Conditions.Add(condition1);                            QueryExpression query = new QueryExpression();                            query.EntityName = "crm_crm_media_articles_crm_channel";//关系实体名                            query.ColumnSet = new ColumnSet("crm_media_articlesid", "crm_channelid");                            query.Criteria.AddFilter(filter1);                            EntityCollection entitys = _service.RetrieveMultiple(query);//查询存在的关系实体                            //删除原来的关系                            foreach (var a in entitys.Entities)                            {                                Guid channelid = new Guid(a.Attributes["crm_channelid"].ToString());                                relatedEntities.Add(new EntityReference("crm_channel", channelid));                            }                            if (relatedEntities.Count > 0)                            {                                _service.Disassociate(entity.LogicalName, regardingobjectid, relationship, relatedEntities);                            }                            if (entity.Attributes.Contains("crm_affect_channel_content"))                            {                                //解析XML字段                                string channelXml = entity.Attributes["crm_affect_channel_content"].ToString();                                if (!String.IsNullOrEmpty(channelXml))                                {                                    XmlDocument xmlDoc = new XmlDocument();                                    xmlDoc.LoadXml(channelXml);                                    XmlNodeList nodeList = xmlDoc.GetElementsByTagName("li");                                    relatedEntities.Clear();                                    for (var i = 0; i < nodeList.Count; i++)                                    {                                        Guid channelid = new Guid(nodeList[i].Attributes["oid"].Value);                                        relatedEntities.Add(new EntityReference("crm_channel", channelid));                                    }                                    //创建新的关系                                    _service.Associate(entity.LogicalName, regardingobjectid, relationship, relatedEntities);                                }                            }                        }                    }                    catch (Exception ex)                    {                        throw new InvalidPluginExecutionException(ex.Message);                    }

　　}

}

转载于:https://www.cnblogs.com/lmy213/archive/2012/07/19/2599091.html

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