Changing an array to list in TFS Reports

Creating a report in Team Foundation Server(TFS) and my parameter is set as an array and I want to be able to displ开发者_JS百科ay this array. I want to be able to switch the array to a list and then be able to show what is selected out of the list by the parameter the user selects. Can someone help please?? :)

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A multi-valued parameter is returned as an array, have you tried something like...

=JOIN(Parameters!MyParameter.Label,",")

...in a text box?