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# NSSavePanel.CanSelectHiddenExtension Property

A Boolean value that indicates whether the panel displays UI for hiding or showing filename extensions.

CanSelectHiddenExtension as Boolean {Read and Write}

#### Remarks

When the value of this property is True, the panel displays UI for showing or hiding filename extensions. The default value of this property is False.
Set the value of this property before displaying the panel. Use the ExtensionHidden property to get and set the value of the checkbox that hides or shows extensions.

#### See Also

NSSavePanel Class