Question : date diff expression

I am trying to find time diffrence between 2 dates in SSRS. In SQL i can find it out like this
sum(DATEDIFF(n, OpenDate, ClosedDate)).

How would i write an expression in SSRS to find out the time diff in minutes?

Answer : date diff expression

Try something like this:
=SUM(DateDiff(DateInterval.Minute,Fields!OpenDate.Value,Fields!ClosedDate.Value))