Cannot exit wireframe-like view

Hi,

I just started learning SW. After having applied extrusion, extruded cut, fillet and some other operations to the model, and perhaps after inadvertently pressed some hotkey, the solid rendered view of the drawing disappeared. What is left is only something looks like the wireframe view. This cannot be changed even if I choose “shade with edges” or other type in “Display style”.

If I multi select objects, multiple objects are shown simultaneously; however if don’t select multiple objects don’t select any object, then only a sketch or edge of a single base surface is shown, yet in gray color.

Could anyone tell me which mode did I inadvertently activated, and how to revert back to normal view (showing solids, not wireframe)?

 

Qi

SolidworksDrawings And Detailing