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Tuesday, May 19, 2015

Allow NULL value in Multi Value Report Parameter in SQL Server Reporting Services

Your SQL Server Reporting Services (SSRS) report has a multi value parameter, but it doesn't show NULL in the parameter drop down along with the other parameter values. In SSRS a multi-value parameter cannot include a NULLvalue, so users can't filter the data for NULL values. Your requirements state a need to be able to filter the data forNULL values, so in this tip I will demonstrate how to allow NULL values in a multi value SSRS report parameter.

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