SSRS Multi-Value Blank Default Bug

Question

I have a dataset that returns a '' (blank) value amongst the other records. This dataset populates a multi-value drop-down parameter and the "Allow blank value" checkbox is checked in the Report Parameters window.

However, when I select Non-queried in the "Default values" section and select <Blank>, VS2005 reverts to selecting Null in the "Default values" section as soon as I close the window.

How can I make the drop-down parameter select the '' (blank) value by default?

Answer 1

If you want VS2005 to select the (Blank) value only as the default, you cannot use a Non-queried default value and make it <Blank>. Instead, you need to create a simple dataset containing the text query:

select '' as Value

You then use a From query default value and choose that dataset.