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Home/ Questions/Q 1015685
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Editorial Team
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Editorial Team
Asked: May 16, 20262026-05-16T10:26:15+00:00 2026-05-16T10:26:15+00:00

I have a WPF UserControl that contains a ComboBox . I need to attach

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I have a WPF UserControl that contains a ComboBox. I need to attach an event listener to the ComboBox.Items collection.

public MyUserControl()
{
    InitializeComponent();

    ((INotifyCollectionChanged)comboBox.Items).CollectionChanged +=
        ComboBoxItemsChanged;
}

But I cant seem to figure out how to detach it. Or is that handled automatically when the entire control is garbage collected?

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  1. Editorial Team
    Editorial Team
    2026-05-16T10:26:15+00:00Added an answer on May 16, 2026 at 10:26 am

    Implement IDisposable interface and detach event handler in Dispose method

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