Question

我正在报告SSRS报告。我需要为Textbox编写一个表达式，以显示不同的输入参数（如果提供）。我试过写表达式。但无法使其完美。在这里，我提供了示例代码，我需要有一个SSRS表达式。任何人都可以帮我提供SSRS格式的相同表达。

代码

If(Parameters!FromCreationdate.Value !=null && Parameters!ToCreationdate.Value !=null)
{
  "Created Date:"+ Parameters!FromCreationdate.Value + "To Created Date:"+Parameters!ToCreationdate.Value;
}
else if(Parameters!FromCreationdate.Value !=null)
{
  "Created Date:"+ Parameters!FromCreationdate.Value;
}
else if(Parameters!ToCreationdate.Value !=null)
{
 "To Created Date:"+ Parameters!ToCreationdate.Value;
}

表达式

=IIf(isnothing(Parameters!FromCreationdate.Value),"", "From Creation Date:"+Parameters!FromCreationdate.Value, iif(isnothing(Parameters!FromCreationdate.Value)),"", "To Creation Date:"+Parameters!FromCreationdate.Value)

由于

Answer 1

查看Expression Examples (Report Builder and SSRS)，更具体地说，请查看SWITCH

当您有三个或更多条件时，Switch功能非常有用去测试。 Switch函数返回与之关联的值在系列中的第一个表达式，其值为true

所以你会使用类似

的东西

=SWITCH(
TEST_CONDITION_1,VALUE_1,
TEST_CONDITION_2,VALUE_2,
TEST_CONDITION_3,VALUE_3,
....
TEST_CONDITION_N,VALUE_N
)

Answer 2

使用SWITCH是一种更好的方法，但是如果你仍然需要/想要出于某种原因嵌套你的IIF语句，那就改为：

=IIF(Not IsNothing(Parameters!FromCreationdate.Value) And Not IsNothing(Parameters!   ToCreationdate.Value),
    "Created Date: " + Parameters!FromCreationdate.Value +
    " To Created Date: " + Parameters!ToCreationdate.Value,
    IIF( Not IsNothing(Parameters!FromCreationdate.Value),
        "Created Date: " + Parameters!FromCreationdate.Value,
        IIF( Not IsNothing(Parameters!ToCreationdate.Value),
            "To Created Date: " + Parameters!ToCreationdate.Value,
            ""
            )
        )
    )

或者，你也可以这样做：

=IIF( Not IsNothing( Parameters!FromCreationdate.Value ),
    "Created Date: " + Parameters!FromCreationdate.Value,
    "" ) +
IIF( Not IsNothing( Parameters!FromCreationdate.Value ) AND
    Not IsNothing ( Parameters!ToCreationdate.Value ),
    " ", "" ) +
IIF( Not IsNothing( Parameters!ToCreationdate.Value ),
    "To Created Date: " + Parameters!ToCreationdate.Value,
    "" )

如果要在SSRS 2005中创建报告并部署到2008，则可能需要将空字符串（“”）更改为Nothing。使用某些导出格式（或可能是某些浏览器）执行此操作会导致空字符串当我们在文本字段中设置了粗体时，看起来像一个破折号。

带有If语句的SSRS表达式

2 个答案: