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  • crm使用FetchXml分组聚合查询

    /* 创建者:菜刀居士的博客
     * 创建日期:2014年07月09号
     */

    namespace Net.CRM.FetchXml
    {
        using System;
        using Microsoft.Xrm.Sdk;
        using Microsoft.Xrm.Sdk.Query;

        /// <summary>
        /// 使用FetchXml聚合查询,分组根据
        /// </summary>
        public class FetchXmlExtension
        {
            /// <summary>
            /// 分组聚合
            /// sql: select count(*),ownerid from account group by ownerid
            /// </summary>
            public void Group(IOrganizationService service)
            {
                string fetchXml = @"<fetch distinct='false' mapping='logical' aggregate='true'>
                                        <entity name='account'>
                                            <attribute name='name' alias='name_count' aggregate='count' />
                                            <attribute name='ownerid' alias='ownerid' groupby='true' />
                                        </entity>
                                    </fetch>";
                EntityCollection ec = service.RetrieveMultiple(new FetchExpression(fetchXml));
                if (ec != null && ec.Entities.Count > 0)
                {
                    Entity en = ec.Entities[0];
                    //获取结果
                    decimal value = ((Money)((AliasedValue)en["name_count"]).Value).Value;
                    EntityReference ownerEr = (EntityReference)((AliasedValue)en["ownerid"]).Value;
                }
            }

            /// <summary>
            /// 分组聚合,按年分组
            /// </summary>
            public void GroupByYear(IOrganizationService service)
            {
                string fetchXml = @"<fetch distinct='false' mapping='logical' aggregate='true'>
                                        <entity name='account'>
                                           <attribute name='accountid' alias='account_count' aggregate='count'/>
                                           <attribute name='estimatedvalue' alias='estimatedvalue_sum' aggregate='sum'/> 
                                           <attribute name='actualclosedate' groupby='true' dategrouping='year' alias='year' />
                                        </entity>
                                    </fetch>";
                EntityCollection ec = service.RetrieveMultiple(new FetchExpression(fetchXml));
                if (ec != null && ec.Entities.Count > 0)
                {
                    Entity en = ec.Entities[0];
                    //获取结果
                    int value_year = (Int32)((AliasedValue)en["year"]).Value;
                    int value_count = (Int32)((AliasedValue)en["account_count"]).Value;
                    decimal value_sum = ((Money)((AliasedValue)en["estimatedvalue_sum"]).Value).Value;
                }
            }

            /// <summary>
            /// 分组聚合,按季度分组
            /// </summary>
            public void GroupByQuarter(IOrganizationService service)
            {
                string fetchXml = @"<fetch distinct='false' mapping='logical' aggregate='true'>
                                        <entity name='account'>
                                           <attribute name='accountid' alias='account_count' aggregate='count'/>
                                           <attribute name='estimatedvalue' alias='estimatedvalue_sum' aggregate='sum'/> 
                                           <attribute name='actualclosedate' groupby='true' dategrouping='quarter' alias='quarter' />
                                        </entity>
                                    </fetch>";
                EntityCollection ec = service.RetrieveMultiple(new FetchExpression(fetchXml));
                if (ec != null && ec.Entities.Count > 0)
                {
                    Entity en = ec.Entities[0];
                    //获取结果
                    int value_quarter = (Int32)((AliasedValue)en["quarter"]).Value;
                    int value_count = (Int32)((AliasedValue)en["account_count"]).Value;
                    decimal value_sum = ((Money)((AliasedValue)en["estimatedvalue_sum"]).Value).Value;
                }
            }

            /// <summary>
            /// 分组聚合,按月分组
            /// </summary>
            public void GroupByMonth(IOrganizationService service)
            {
                string fetchXml = @"<fetch distinct='false' mapping='logical' aggregate='true'>
                                        <entity name='account'>
                                           <attribute name='accountid' alias='account_count' aggregate='count'/>
                                           <attribute name='estimatedvalue' alias='estimatedvalue_sum' aggregate='sum'/> 
                                           <attribute name='actualclosedate' groupby='true' dategrouping='month' alias='month' />
                                        </entity>
                                    </fetch>";
                EntityCollection ec = service.RetrieveMultiple(new FetchExpression(fetchXml));
                if (ec != null && ec.Entities.Count > 0)
                {
                    Entity en = ec.Entities[0];
                    //获取结果
                    int value_month = (Int32)((AliasedValue)en["month"]).Value;
                    int value_count = (Int32)((AliasedValue)en["account_count"]).Value;
                    decimal value_sum = ((Money)((AliasedValue)en["estimatedvalue_sum"]).Value).Value;
                }
            }

            /// <summary>
            /// 分组聚合,按周分组
            /// </summary>
            public void GroupByWeek(IOrganizationService service)
            {
                string fetchXml = @"<fetch distinct='false' mapping='logical' aggregate='true'>
                                        <entity name='account'>
                                           <attribute name='accountid' alias='account_count' aggregate='count'/>
                                           <attribute name='estimatedvalue' alias='estimatedvalue_sum' aggregate='sum'/> 
                                           <attribute name='actualclosedate' groupby='true' dategrouping='week' alias='week' />
                                        </entity>
                                    </fetch>";
                EntityCollection ec = service.RetrieveMultiple(new FetchExpression(fetchXml));
                if (ec != null && ec.Entities.Count > 0)
                {
                    Entity en = ec.Entities[0];
                    //获取结果
                    int value_week = (Int32)((AliasedValue)en["week"]).Value;
                    int value_count = (Int32)((AliasedValue)en["account_count"]).Value;
                    decimal value_sum = ((Money)((AliasedValue)en["estimatedvalue_sum"]).Value).Value;
                }
            }

            /// <summary>
            /// 分组聚合,按日分组
            /// </summary>
            public void GroupByDay(IOrganizationService service)
            {
                string fetchXml = @"<fetch distinct='false' mapping='logical' aggregate='true'>
                                        <entity name='account'>
                                           <attribute name='accountid' alias='account_count' aggregate='count'/>
                                           <attribute name='estimatedvalue' alias='estimatedvalue_sum' aggregate='sum'/> 
                                           <attribute name='actualclosedate' groupby='true' dategrouping='day' alias='day' />
                                        </entity>
                                    </fetch>";
                EntityCollection ec = service.RetrieveMultiple(new FetchExpression(fetchXml));
                if (ec != null && ec.Entities.Count > 0)
                {
                    Entity en = ec.Entities[0];
                    //获取结果
                    int value_day = (Int32)((AliasedValue)en["day"]).Value;
                    int value_count = (Int32)((AliasedValue)en["account_count"]).Value;
                    decimal value_sum = ((Money)((AliasedValue)en["estimatedvalue_sum"]).Value).Value;
                }
            }

            /// <summary>
            /// 分组聚合,多个分组根据
            /// </summary>
            public void GroupByYearAndQuarter(IOrganizationService service)
            {
                string fetchXml = @"<fetch distinct='false' mapping='logical' aggregate='true'>
                                        <entity name='account'>
                                           <attribute name='accountid' alias='account_count' aggregate='count'/>
                                           <attribute name='estimatedvalue' alias='estimatedvalue_sum' aggregate='sum'/> 
                                           <attribute name='actualclosedate' groupby='true' dategrouping='year' alias='year' />
                                           <attribute name='actualclosedate' groupby='true' dategrouping='quarter' alias='quarter' />
                                        </entity>
                                    </fetch>";
                EntityCollection ec = service.RetrieveMultiple(new FetchExpression(fetchXml));
                if (ec != null && ec.Entities.Count > 0)
                {
                    Entity en = ec.Entities[0];
                    //获取结果
                    int value_year = (Int32)((AliasedValue)en["year"]).Value;
                    int value_quarter = (Int32)((AliasedValue)en["quarter"]).Value;
                    int value_count = (Int32)((AliasedValue)en["account_count"]).Value;
                    decimal value_sum = ((Money)((AliasedValue)en["estimatedvalue_sum"]).Value).Value;
                }
            }
        }
    }

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  • 原文地址:https://www.cnblogs.com/slgkaifa/p/6940474.html
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