在工作流活动代码中接收错误

Question

我的代码中收到以下错误：

属性'sgfdhr_leavetype.new_employeeleavecalculation'的条件：'System.Guid'类型的预期参数，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"];
        }

我收到“EntityCollection LeaveDetails = _orgService.RetrieveMultiple（GetLeavedetails）;”的错误以上代码中的这一行。

谢谢，

Answer 1

错误很清楚你有这个条件：

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

错误告诉您LeaveManagement["new_leavedetails"]是EntityReference（查询），而不是Guid

您可以在Id置于条件之前和之后投射该字段：

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