Dynamics crm 2011 接收工作流活动代码中的错误

我收到代码中的以下错误：

属性“sgfdhr\u leavetype.new\u employeeleavecalculation”的条件：应为“System.Guid”类型的参数，但收到“Microsoft.Xrm.Sdk.EntityReference”

我的代码如下：

public int Getleavetype(Entity LeaveManagement, IOrganizationService _orgService, CodeActivityContext Acontext)
        {
      QueryExpression GetLeavedetails = new QueryExpression();
      GetLeavedetails.EntityName = "sgfdhr_leavetype";
      GetLeavedetails.ColumnSet = new ColumnSet("new_type");
      GetLeavedetails.ColumnSet = new ColumnSet("new_availabledays");
      GetLeavedetails.Criteria.AddCondition("new_type", ConditionOperator.Equal, 1);
      GetLeavedetails.Criteria.AddCondition("new_employeeleavecalculation",    ConditionOperator.Equal,LeaveManagement["new_leavedetails"]);
            EntityCollection LeaveDetails = _orgService.RetrieveMultiple(GetLeavedetails);
            return (int)LeaveDetails[0]["new_availabledays"];
        }

在上面的代码中，我收到了“EntityCollection LeaveDetails=\u orgService.RetrieveMultiple（GetLeavedetails）；”这一行的错误

---

谢谢，

错误很明显，您有以下情况：

 GetLeavedetails.Criteria.AddCondition("new_employeeleavecalculation", ConditionOperator.Equal, LeaveManagement["new_leavedetails"]);

EntityReference detailsRef = (EntityReference)LeaveManagement["new_leavedetails"];
GetLeavedetails.Criteria.AddCondition("new_employeeleavecalculation", ConditionOperator.Equal, detailsRef.Id);

该错误告诉您，

LeaveManagement[“new\u leavedetails”]

是一个

EntityReference

（查找）而不是

Guid

您可以在将

Id

放入条件之前和之后强制转换字段：

 GetLeavedetails.Criteria.AddCondition("new_employeeleavecalculation", ConditionOperator.Equal, LeaveManagement["new_leavedetails"]);

EntityReference detailsRef = (EntityReference)LeaveManagement["new_leavedetails"];
GetLeavedetails.Criteria.AddCondition("new_employeeleavecalculation", ConditionOperator.Equal, detailsRef.Id);