Reporting Services - Introduction videos | SSRS Part 13 - Null values in parameters

Posted by Andrew Gould on 21 May 2013

Parameters allow your users to filter reports by typing in values or selecting from drop down lists. But what if they want to leave a parameter blank and still see results in the report? This video teaches you how to handle Null values in parameters to make this possible. You'll learn how to allow a null value in a parameter and how to write a WHERE clause to handle the null properly. We'll also look at how you can create drop down list parameters which allow null values, including how to append a null value to a dataset, how to mask the null value with descriptive text and how to sort the drop down list to make sure the null appears at the top.

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