SSRS iif和三个数据集中的查找= #error

Question

我有一份报告，我希望将两列合并为一列。但是当我尝试时，我会在#error中出现日期 - 它们可以单独运行。

我该怎么做？

第1栏：

=IIf(Lookup(Fields!Chassis_No.Value, Fields!Chassis_no_.Value, Fields!Date_Performed.Value, "DataSet2") <> "01-01-1754", Lookup(Fields!Chassis_No.Value, Fields!Chassis_no_.Value, Fields!Date_Performed.Value, "DataSet2"), "")

第2栏：

=IIf(Lookup(Fields!Chassis_No.Value, Fields!Chassis_no_.Value, Fields!Date_Performed.Value, "DataSet3") <> "01-01-1754", Lookup(Fields!Chassis_No.Value, Fields!Chassis_no_.Value, Fields!Date_Performed.Value, "DataSet3"), "")

请参阅目前列的内容：

Answer 1

尝试在以下内容中使用&：

=IIf(Lookup(Fields!Chassis_No.Value, Fields!Chassis_no_.Value, Fields!Date_Performed.Value, "DataSet2") <> "01-01-1754", Lookup(Fields!Chassis_No.Value, Fields!Chassis_no_.Value, Fields!Date_Performed.Value, "DataSet2"), "")
&
IIf(Lookup(Fields!Chassis_No.Value, Fields!Chassis_no_.Value, Fields!Date_Performed.Value, "DataSet3") <> "01-01-1754", Lookup(Fields!Chassis_No.Value, Fields!Chassis_no_.Value, Fields!Date_Performed.Value, "DataSet3"), "")