created an attachment (id=158416)
report design

description:
miss expression of output parameter binding

build number: 
2.5.2.v20100208-0630

steps to reproduce:
1, new a stored procedure data set with a output parameter
2, new a data item or table binding with the data set
3, check the binding expression of output parameter

expected result:
the expression of output parameter binding should be generated automatically. for example: outputparams["@test"]

actual result:
the expression is empty

error log:
fixed.
verified in 252 v20100210-0630