SSRS独特的查找集函数

我在用着Join(Lookupset)查找返回序列号的唯一组值。这是我的功能：

Join(LookupSet(Fields!itemId.Value & Fields!UseByDate.Value & Fields!rackId.Value
    , Fields!itemId.Value & Fields!UseByDate.Value & Fields!rackId.Value
    , Fields!CustomerSeqNo.Value
    , "PickingList"), ",")

问题是某些商品存在多次交易。我想删除重复项。

我找到了一个博客http://blogs.msdn.com/b/bobmeyers/archive/2012/06/18/creating-short-lists-using-the-lookupset-function.aspx http://blogs.msdn.com/b/bobmeyers/archive/2012/06/18/creating-short-lists-using-the-lookupset-function.aspx但无法让 SSRS 报表生成器引用 Linq 程序集。我的问题是

我怎样才能展示独特的价值观？

您不需要 Linq，但仍然需要自定义代码（在 BIDS 中，转到“报告”->“报告属性”->“代码”）

您可以在此处放置一个RemoveDuplicates 函数，如下所示：

Public Shared Function RemoveDuplicates(m_Array As Object()) As String()

    System.Array.Sort(m_Array)
    Dim k As Integer = 0
    For i As Integer = 0 To m_Array.Length - 1
        If i > 0 AndAlso m_Array(i).Equals(m_Array(i - 1)) Then
            Continue For
        End If
        m_Array(k) = m_Array(i)
        k += 1
    Next

    Dim unique As [String]() = New [String](k - 1) {}

    System.Array.Copy(m_Array, 0, unique, 0, k)

    Return unique

End Function

要在您的加入中使用它：

Join(Code.RemoveDuplicates(LookupSet(...)),",")