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My stored procedure has an output parameter for row count. When the stored procedure is called using Dapper...

var p = new DynamicParameters();
p.Add("@rowCount", dbType: DbType.Int32, direction: ParameterDirection.Output);

var reader = conn.ExecuteReader("SearchStuff", p, commandType: CommandType.StoredProcedure);

the profiler shows the following...

declare @p0 int
set @p0=115
exec SearchStuff @rowCount=@p0 output
select @p0

I'm baffled... how is the row count assigned to the out parameter before the stored procedure has been executed?