i have traced it to lines 1785 to 1799 in DockContainer.cs. The FormClosing event should fire here and the Cancel property should be checked before ReleaseWindow(...) and Form.IsVisible is set to false.
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i have traced it to lines 1785 to 1799 in DockContainer.cs. The FormClosing event should fire here and the Cancel property should be checked before ReleaseWindow(...) and Form.IsVisible is set to false.