Window::MeasureOverride Method (Size)


Override this method to measure the size of a window.

Namespace:   System.Windows
Assembly:  PresentationFramework (in PresentationFramework.dll)

virtual Size MeasureOverride(
	Size availableSize
) override


Type: System.Windows::Size

A Size that reflects the available size that this window can give to the child. Infinity can be given as a value to indicate that the window will size to whatever content is available.

Return Value

Type: System.Windows::Size

A Size that reflects the size that this window determines it needs during layout, based on its calculations of children's sizes.

MeasureOverride is not called when the Visibility property has a value of Collapsed. If the value of the Visibility property is either Hidden or Visible, MeasureOverride is called.


When either Show or ShowDialog are called, the Visibility property of a Window is set to Visible.

.NET Framework
Available since 3.0
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