asp.net - RDLC 报告中的 Where 子句

Question

=iif(Fields!SubjectCode.Value=Parameters!SubjectCode.Value,Fields!SpAbsentCount.Value,0)

我有一个主报告和一个子报告

SubjectCode 参数从主报表传递到子报表

为每个主题代码生成子报告。根据主题代码，我需要选择一个值（SpAbsentCount）以显示在子报告上

类似于 select... from... where SubectCode=@SubjectCode

我尝试了上面的表达式，但它不起作用

Answer 1

Hard to say exactly without knowing the data and setup of your report, but one guess I have is that you have a whole set of values, and your IIF expression winds up looking at only the first row of values. Try creating a tablix or list that filters on the SubjectCode, then using your code.