Select All as default value for Multivalue parameter

Question

I\'m building a report in Visual Studio 2008 with a lot of multivalue parameters and it\'s working great, but I would like to have have the \"(Select all)\" option as the de

Answer 1

Does not work if you have nulls.

You can get around this by modifying your select statement to plop something into nulls:

phonenumber = CASE
  WHEN (isnull(phonenumber, '')='') THEN '(blank)'
  ELSE phonenumber
END