Gets or sets the 
Spot that specifies what point in the grid cell dragged parts snap to, if the value of 
GridSnapEnabled is true.
 
            
            
            
            
        
            
            
            Property Value
The default value is 
TopLeft, which means parts get snapped directly to the grid points. A new value must be a specific spot: 
Spot.IsSpot must be true for any new value.