Report Builder 3.0 SWITCH 和嵌套 IIF 都抛出相同的错误 [BC32017]答案

【问题标题】：Report Builder 3.0 SWITCH and nested IIF both throw the same error [BC32017]Report Builder 3.0 SWITCH 和嵌套 IIF 都抛出相同的错误 [BC32017]
【发布时间】：2019-11-28 14:26:34
【问题描述】：

我正在使用报表生成器 3.0 尝试根据用户选择的参数获取动态标题。

错误

textrun 的值表达式 'Textbox29.Paragraphs[2].TextRuns[0]' 包含错误：[BC32017] 逗号、')' 或预期的有效表达式继续。

使用此 SWITCH 语句时出现此错误

=SWITCH(
Parameters!LineCalled.Count = 3, "All Lines",
Parameters!LineCalled.Count = 2, "Both Notts Lines",
Parameters!LineCalled.Count = 1 AND
Parameters!LineCalled.Value = "01156842190", "Order Line",
Parameters!LineCalled.Count = 1 AND
Parameters!LineCalled.Value = "01156842191", "Overflow Line",
Parameters!LineCalled.Count = 1 AND
Parameters!LineCalled.Value = "393607", "Belfast Line"

)

或者这个IIF

=IIF(Parameters!LineCalled.Count = 3, "All Lines",
IIF(Parameters!LineCalled.Count = 2, "Both Notts Lines",
IIF(Parameters!LineCalled.Count = 1 AND
Parameters!LineCalled.Value = "01156842190", "Order Line",
IIF(Parameters!LineCalled.Count = 1 AND
Parameters!LineCalled.Value = "01156842191", "Overflow Line",
IIF(Parameters!LineCalled.Count = 1 AND
Parameters!LineCalled.Value = "393607", "Belfast Line","Other"
)))))

我错过了什么？

【问题讨论】：

导致错误的参数的值是什么？是一种组合还是全部组合？

标签： reporting-services switch-statement iif-function

【解决方案1】：

你缺少的是你的参数似乎是一个多值参数，所以每当你想访问唯一选择的值时，你应该使用表达式Parameters!LineCalled.Value(0)。

例如：

=SWITCH(
  Parameters!LineCalled.Count >= 3, "All Lines",
  Parameters!LineCalled.Count = 2, "Both Notts Lines",
  Parameters!LineCalled.Value(0) = "01156842190", "Order Line",
  Parameters!LineCalled.Value(0) = "01156842191", "Overflow Line",
  Parameters!LineCalled.Value(0) = "393607", "Belfast Line"
)

【讨论】：