Question

请看下面的表达

="Active : " & IIF(Parameters!lsSSelect_Active_Type_s_.Value = "FXNULL","ALL",
 iif(Parameters!lsSSelect_Active_Type_s_.Value=1,"Active",   
 iif(Parameters!lsSSelect_Active_Type_s_.Value=2,"Inactive","N/A")))

现在用户有3个选项，1,2或FXNULL。 1和2可以正确显示Active和Inactive但是当用户选择“FXNULL”时，它会抛出错误。

The Value expression for the textrun contains an error: Input string was not in a correct format

现在为了进行测试以确保FXNULL之间的比较工作正常，我尝试了以下表达式并正常工作

="Active : " & IIF(Parameters!lsSSelect_Active_Type_s_.Value = "FXNULL","ALL","N/A")

第一个表达式出了什么问题？

Answer 1

在数字检查上添加引号，它将无误运行

="Active : " & IIF(Parameters!lsSSelect_Active_Type_s_.Value = "FXNULL","ALL",
 iif(Parameters!lsSSelect_Active_Type_s_.Value="1","Active",   
 iif(Parameters!lsSSelect_Active_Type_s_.Value="2","Inactive","N/A")))

发生这种情况的原因是因为Iif会评估所有表达式，并且您同时进行数字和字符串比较。

另外，我建议使用Switch而不是嵌套的Iif来使代码更具可读性

="Active : " & 
Switch(Parameters!lsSSelect_Active_Type_s_.Value = "FXNULL","ALL",
Parameters!lsSSelect_Active_Type_s_.Value="1","Active",   
Parameters!lsSSelect_Active_Type_s_.Value="2","Inactive",
True,"N/A"
)

SSRS简单嵌套IIF条件？

1 个答案: