The ornamental design for a dashboardcover, as shown and described.
FIG. 1 is a perspective view of a dashboard cover showing my new design in
exploded condition with respect to the dashboard, it being understood that
the broken lines are for illustrative purposes only;
FIG. 2 is an enlarged top plan view thereof;
FIG. 3 is an enlarged bottom plan view thereof; and
FIG. 4 is an enlarged end elevational view thereof.