Constraints handle

Question

I want to add and remove LP constraints multiple times. When removing constraints I need a handle. My question is, do I need to create a container and add and remove constraints from there as well, or is there a way of getting a handle to the current LP constraints on the fly?

// Get rows of the LP.

IloRangeArray rows(m_model.getEnv());

i.e. best way to make rows equal to the current constraints in the LP?

Or better yet, how to GetRows() which cplex has using Concert Technology?

Thanks.