Passing NULL value to stored procedure parameter

toma19toma19
edited 9:07PM in FastReport .NET
I get data from my SQL database using a stored procedure.
This stored procedure accept a parameter @myparam of type NVarChar, I'm trying to set the default value to NULL but the actual call to DB is always an empty string @myparam=N''
how can i get FastReport to generate @myparam=NULL instad of @myparam=N'' ?

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