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Adding a double value to ArrayList

San
Hi,
I'm using a Managed C++ project with MFC support. I have an ArrayList
pointer object alValue (ArrayList* alValue) to this object i want to add all
the elements present in Vector<double> vVector to it..

I'm using this line of code..

alValue->Add (new System::Double( vVector[i]))

and I'm getting the following compilation error..

error C2664: 'System::Collec tions::ArrayLis t::Add' : cannot convert
parameter 1 from 'double __gc *' to 'System::Object __gc *'

can somebody please tell me proper way of adding a double value to the
arraylist.

Thanks in advance..
San
Nov 17 '05 #1
1 2649
..NET containers can only store .NET objects (System::Object
descendants). It's not like the STL that can store anything. You have to
box your double value.

container->Add(__box(doub le_value));

Tom
San wrote:
Hi,
I'm using a Managed C++ project with MFC support. I have an ArrayList
pointer object alValue (ArrayList* alValue) to this object i want to add all
the elements present in Vector<double> vVector to it..

I'm using this line of code..

alValue->Add (new System::Double( vVector[i]))

and I'm getting the following compilation error..

error C2664: 'System::Collec tions::ArrayLis t::Add' : cannot convert
parameter 1 from 'double __gc *' to 'System::Object __gc *'

can somebody please tell me proper way of adding a double value to the
arraylist.

Thanks in advance..
San

Nov 17 '05 #2

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