hi.
there is a simple solution for your problem, just use an IIF and a "false" value, just like the next example i used for my report for disabling the hyperlink.
=iif(Fields!UpTo24H_Count.Value<>0,"desired_report", false)
"desired_report" is the name of the report you want to go to using the hyperlink, you
can use this example for a lot of things, i used it to disable the tooltip i added to the hyperlink,
and the same for the underlined property i added to the text in the font properties.
good day.
gil eiliya