Execute package task with project reference using connection string

Hi All,

i have 10 different Staging packages and i want to call only the package which need to load data.

how can i achieve this in project reference mode.

Example Pak1.dtsx,Pak2.dtsx,Pak3.dtsx,Pak4.dtsx,Pak5.dtsx,Pak6.dtsx,Pak7.dtsx,Pak8.dtsx,Pak9.dtsx,Pak10.dtsx.

based on some condition i may run any of few package in  given load.

how can i pass packagename as connection string (this is possible with External Reference).

Thank you 

Regards

BA

hi