confirm-grid-subsection-deletion

Generic Function

Package: common-graphics

Arguments: grid-widget selected-subsections

If the user presses the delete key while a grid-widget has the keyboard focus, and there are any grid-rows or grid-columns in the grid whose deletable properties are true, then this generic function is called to determine whether the rows and columns should in fact be deleted. The default method invokes a modal dialog with a standard question about whether to delete the rows and columns.

Applications should not call this function, which is called automatically, but may add methods to override the default behavior, perhaps to show a different message in the dialog or even to not show a dialog at all. The method should return true if the rows and columns should be deleted and nil if they should not.

grid-widget is the grid that has the focus and contains the rows and columns to be deleted. selected-subsections are the rows and/or columns of the grid-widget that are currently selected and whose deletable properties are true.

Here is the default method:

(defmethod confirm-grid-subsection-deletion ((grid-widget grid-widget)
                                             selected-subsections)
  (let* ((*print-length* nil))
    (y-or-n-dialog "Delete rows and / or columns ~a ?"
                   selected-subsections)))

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Created 2000.10.5.