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,分组依据
/// </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,多个分组依据 /// </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; } } } }

（编辑：李大同）

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