A reference to this instance after the operation has completed.
With v17.1 and later, the Card dashboard item allows you to arrange elements within individual cards using different layout types (Stretched, Compact, etc.). By default, the Card dashboard item uses the Stretched layout type that arranges card elements so that they occupy an entire card area.
The UseCardLegacyLayout method allows you to create cards in a legacy layout using the Designer mode of the Web Dashboard.
Note that if you load a dashboard XML file created before v17.1, cards will be displayed in the old layout. To display such cards using the new layout, specify the required layout type in the UI or in code.