SSRS 2008 Hidden Columns Should NOT Export to CSV

When I hide columns in SSRS they still appear in the CSV export.

I have to hide columns, not the entire tablix.

This is what I have tried already: The filters in the tablix hide rows not colum开发者_运维技巧ns. The DataElementOutput per column can not be set using an expression.

Format options such as expressions on visibility are ignored for CSV rendering methods. CSV rendering methods are essentially data flows, so you can suppress elements that you don't want to include in CSV files by changing the DataElementOutput from Auto, the default value, to NoOutput.

There is a solution in the version of SRS 2008 R2, you need to perform a hide fields as follows:

=IIF(Globals!RenderFormat.Name="CSV", True, False)

means this part of the "Globals!RenderFormat.Name" is crucial