The DOUBLECLICK attribute defines the action for double-clicks or tap on TABLE/TREE rows.
DOUBLECLICK = action-name
The DOUBLECLICK attribute is typically used in a TABLE or TREE container, to define the action to be sent when the user double-clicks on a row on a front-end using a mouse device. On mobile front-ends, this attribute corresponds to the action of tapping on the row with the finger.
By default, when the TABLE is driven by a DISPLAY ARRAY, a double-click invokes the "accept" action.
With an INPUT ARRAY, double-click selects the whole text if the current widget is editable. If DOUBLECLICK is defined when using an INPUT ARRAY, the action can only be sent when the user double-clicks on a non-editable widget like a LABEL. It is not recommended to define this attribute when an INPUT ARRAY dialog is used.