DesignSurface.Unloading Event

Occurs when a designer is about to unload.

Namespace:  System.ComponentModel.Design
Assembly:  System.Design (in System.Design.dll)

public event EventHandler Unloading

When a designer unloads, the entire state for that designer is destroyed, including the designer’s view. The view should be unparented at this time.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0
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