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Editorial Team
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Asked: 2026-05-16T11:02:32+00:00

A CustomPropertyList class is created in my form constructor. form(String ^s) { InitializeComponent(); CustomPropertyList

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A CustomPropertyList class is created in my form constructor.

form(String ^s)
{
    InitializeComponent();
    CustomPropertyList ^propertyList = gcnew CustomPropertyList(s);
...

The CustomPropertyList class has a destructor

CustomPropertyList::~CustomPropertyList()
{

    if (MessageBox::Show("Do you want to save your changes?","Editin",MessageBoxButtons::YesNo)==DialogResult::Yes)
...

Why is it not called when the program exits? (I know it’s not as I don’t see the message box and there’s a breakpoint there)

I’m very grateful for any help

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1 Answer

  1. Editorial Team

    Because this is not destructor, this is Dispose method (in C# terms). If client doesn’t call Dispose, it is never called. On the other hand, finalizer (!CustomPropertyList) should be called, unless GC::SuppressFinalize is used to prevent it.

    From C# code, ~CustomPropertyList can be called by using Dispose. From C++/CLI client code, it can be called by using delete operator.

    See more details in this C++/CLI guru article: http://www.codeproject.com/KB/mcpp/cppclidtors.aspx

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