我想知道是否有人可以幫助我們理解爲什麼SSRS在我的Textbox13文本框中返回Error。SSRS VB IIF語句返回NULL值的錯誤
Warning 1 [rsRuntimeErrorInExpression] The Value expression for the textrun ‘Textbox13.Paragraphs[0].TextRuns[0]’ contains an error: Conversion from string "NULL" to type 'Date' is not valid.
值Workorder_Closed_Date是SQL查詢的結果,並且無論是填充或NULL
=IIF(IsNothing(Fields!Workorder_Closed_Date.Value),
reportitems!Textbox13.Value="open",
reportitems!Textbox13.Value="closed")
「Textbox13」的表達式是? –