如何在rdlc的文本框中使用多个字段时为文本框提供表达式？

Question

需要显示[功能] - [FeatureStatus] - [FeaturePerComplete]％如果功能字段有值或者需要显示N / A，我需要为此提供什么样的放弃

Answer 1

尝试更改

=IIf(Fields!Feature.Value Is Nothing, "N/A",Fields!Feature.Value & " - " & Fields!FeatureStatus.Value & " - " & Fields!FeaturePerComplete.Value & "%")

要..

=IIf(Isnothing(Fields!Feature.Value), "N/A",Fields!Feature.Value & " - " & Fields!FeatureStatus.Value & " - " & Fields!FeaturePerComplete.Value & "%")

这依赖于Feature列在这种情况下为null - 它肯定是null，还是空白？