parameters in a RDLC file

[viper5646]

Hi all

I have a RDCL Report called Report1.RDCL.
In this report I put an image box named logo the select image is set to EXTERNAL and in the use this image I have =Parameters!Log oPath.Value.
I would like the users to be able to pick their own logo.
How can I pass the file path to the paremeter.

Thanks.