Originally posted by: BabakArh

Hello everyone

I proposed a Column Generation which has embedded constraint programming in it, for solving sub problem.

I added OPLALL reference and it changed most of my concert syn-taxes .  for example before adding oplAll in concert technology cplex.isPrimalFeasible() was a function but after oplALL it changed to data member. simply means I should use cplex.isPrimalFeasible without "()". 

but in column genration when u want to add column, firstly u generate new object of "Column" (it's in concert) then you modify the column then add it to cplex model.

Column new_col=masterModel.Column(...);

when I used OPL ALL there is no object with name of "Column".

Error:The type or namespace name 'Column' could not be found (are you missing a using directive or an assembly reference?) (CS0246)

is there any body who used CP in Column Generation?

what is the name of this object in OPLALL.concert?

2-there is something else before OPLall, the consert tech take IintVar as a parameter for cplex.getreducedCost but after oplall ther parameter should be INUMVAR

3- the 2ed  problem extended to CPLEX.getvalue()

Originally posted by: BabakArh

I think it is changed to IColumn

Originally posted by: GGR

Hi

Column generation is a technique having means only in math programming. It is possible to use Constraint programming as sub-problem. Is that you want ro do?

In any case for all question regarding column generation I suggest you contact the math programming forum.

Hope that helps

Originally posted by: BabakArh

hello, yes it is what i am doing now.

I temporary changed my variable to numVar to get over the errors, I wrote my sub problem with CP but I havent chance to see the result or to know  if it is working

the only thing I cant undrestand is why OPLall dont accept IIntVar as parameter for CPLEXModel.getvalue()