Can you Change "Hidden" Property of TEXTBOX
to have this Expression
=IIF(
First(Fields!Field_2_Optional.Value, "DataSet2") = NOTHING OR
First(Fields!Field_2_Optional.Value, "DataSet2") = ""
, TRUE , FALSE )
note :
1. change the Fields!Field_2_Optional.Value to your field name
2.
First( ..) function was used since a textBox can show only one value(assuming TextBox is not part of table) . IF you are using textBox in a Table (ReportItem)
remove this Function (so it works for Row)
rajivkumar.bala@yahoo.co.in