Dynamics CRM：为系统用户检索多个约会

Question

我试图通过RetrieveMultiple方法和查询表达式获取systemuser的所有约会。例如：

WhoAmIRequest userRequest = new WhoAmIRequest(); 
WhoAmIResponse userResponse = (WhoAmIResponse)_serviceProxy.Execute(userRequest); 

QueryExpression qe = new QueryExpression(); 
qe.EntityName = "systemuser"; 

... 
slos.RetrieveMultiple(qe); 

我可以从systemuser实体检索systemuser（所有者，组织者，参加者需要，可选的与会者）的所有的约会？

或者是否必须检索CRM的所有约会并添加条件以了解用户是所有者，组织者，必需的还是可选的与会者？

最后，我使用SOAP Logger，它是生成SOAP请求的最佳方式吗？

Answer 1

您需要使用appointment和systemuser之间的关系实体activitypointer。正如你在我的例子中看到的那样，这会让事情变得复杂一些。

至少有2种可能的方式来建立你所需的查询：

var qe = new QueryExpression 
{ 
    EntityName = "appointment", 
    ColumnSet = new ColumnSet("subject"), 
    LinkEntities = 
    { 
     new LinkEntity 
     { 
      EntityAlias = "ap", 
      JoinOperator = JoinOperator.Inner, 
      Columns = new ColumnSet(false), 
      LinkFromEntityName = "appointment", 
      LinkFromAttributeName = "activityid", 
      LinkToEntityName = "activityparty", 
      LinkToAttributeName = "activityid", 
      LinkCriteria = new FilterExpression 
      { 
       Conditions = 
       { 
        new ConditionExpression("partyid", ConditionOperator.Equal, userid), 
       }, 
      }, 
     }, 
    }, 
}; 

2）您可以通过查询systemuser：

1）正如你已经想通，您可以通过systemuserid筛选约会systemuserid并添加任命为链接的实体（如在一个SQL查询JOIN）：

var qe2 = new QueryExpression 
{ 
    EntityName = "systemuser", 
    ColumnSet = new ColumnSet(false), 
    LinkEntities = 
    { 
     new LinkEntity 
     { 
      EntityAlias = "ap", 
      Columns = new ColumnSet(false), 
      JoinOperator = JoinOperator.Inner, 
      LinkFromEntityName = "systemuser", 
      LinkFromAttributeName = "systemuserid", 
      LinkToEntityName = "activityparty", 
      LinkToAttributeName = "partyid", 
      LinkEntities = 
      { 
       new LinkEntity 
       { 
        EntityAlias = "a", 
        Columns = new ColumnSet("subject"), 
        JoinOperator = JoinOperator.Inner, 
        LinkFromEntityName = "activityparty", 
        LinkFromAttributeName = "activityid", 
        LinkToEntityName = "appointment", 
        LinkToAttributeName = "activityid", 
       }, 
      }, 
     }, 
    }, 
    Criteria = new FilterExpression 
    { 
     Conditions = 
     { 
      new ConditionExpression("systemuserid", ConditionOperator.Equal, userid), 
     }, 
    }, 
}; 

，关于对参与角色的过滤器，你就必须在participationtypemask添加一个条件在activitypointer：

// user is Organizer, Owner, required or optional Attendee 
ConditionExpression("participationtypemask", ConditionOperator.In, new int[] { 5, 6, 7, 9 }), 

Answer 2

有了这个表达，我没有收到任何的任命现在：

QueryExpression qe = new QueryExpression 
{ 
    EntityName = "appointment", 
    ColumnSet = new ColumnSet("activityid", "subject", "scheduledstart", "scheduledend", "location", "description"), 
    Criteria = new FilterExpression 
    { 
     FilterOperator = LogicalOperator.And, 
     Conditions = 
     { 
      new ConditionExpression("scheduledend", ConditionOperator.GreaterThan, startTime), 
      new ConditionExpression("scheduledstart", ConditionOperator.LessThan, endTime) 
     } 
    }, 
    LinkEntities = 
    { 
     new LinkEntity 
     { 
      LinkFromEntityName = "activitypointer", 
      LinkFromAttributeName = "activityid", 
      LinkToEntityName = "activityparty", 
      LinkToAttributeName = "activityid", 
      LinkCriteria = new FilterExpression 
      { 
       FilterOperator = LogicalOperator.And, 
       Conditions = 
       { 
        new ConditionExpression("participationtypemask", ConditionOperator.In, new int[] { 5, 6, 7, 9 }), 
        new ConditionExpression("partyid", ConditionOperator.Equal, userResponse.UserId) 

       } 
      } 
     }, 
     new LinkEntity 
     { 
      EntityAlias = "requiredattendees", 
      Columns = new ColumnSet(false), 
      JoinOperator = JoinOperator.Inner, 
      LinkFromEntityName = "activitypointer", 
      LinkFromAttributeName = "activityid", 
      LinkToEntityName = "activityparty", 
      LinkToAttributeName = "activityid", 
      LinkCriteria = new FilterExpression 
      { 
       Conditions = 
       { 
        new ConditionExpression("participationtypemask", ConditionOperator.Equal, 5) 

       } 
      }, 
      LinkEntities = 
      { 
       new LinkEntity 
       { 
        EntityAlias = "contact", 
        Columns = new ColumnSet("fullname"), 
        JoinOperator = JoinOperator.Inner, 
        LinkFromEntityName = "activityparty", 
        LinkFromAttributeName = "activityid", 
        LinkToEntityName = "contact", 
        LinkToAttributeName = "contactid" 
       }, 
      } 
     } 
    } 
}; 

qe.Distinct = true; 

slos.RetrieveMultiple(qe);