Re: 2D Vector Inside function
Do you intend to initialize a class member 2D vector from an arbitrary member function or do you want a 2D vector as a function-local variable? For the former you can just use the proposed syntax for initializing it from the constructor. In this respect the constructor and any other (non-static) member function are equivalent (but note that there are some fundamental aspects where they are not equivalent). For the latter (which I consider to be more likely), unlike the initialization of non-static member variables, you can use the "assign while declaring" initialization syntax; creation of the inner vectors would then be as we already had it:
vector<vector<int> ^> ^vector2D = gcnew vector<vector<int> ^>(13);
for (int i = 0; i < vector2D->size(); ++i)
vector2D[i] = gcnew vector<int>(13);
// Do whatever you want...
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