namespace Var1{
  public __gc class Form1 : public System::Windows::Forms::Form
  {
    ....
public:
    __gc int Items[ 4 ][ 4 ];    

    ....

  }
}

c:\..\Var1\Form1.h(254): error C3150: 
'int' : '__gc' can only be applied to a class, struct, interface, array or pointer

namespace Var1{
  public __gc class Form1 : public System::Windows::Forms::Form
  {
    ....
public:
    int Items[ 4 ][ 4 ];    

    ....

  }
}

c:\...\Var1\Form1.h(254): error C2697: 'Items' : 
must explicitly specify __gc or __nogc for an array declared in a managed type