The ornamental design for a dishdryingrack, as shown and described.
FIG. 1 is a perspective view of a dish drying rack showing my new design;
FIG. 2 is another perspective view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a left side elevational view thereof;
FIG. 6 is a right side elevational view thereof;
FIG. 7 is a top plan view thereof;
FIG. 8 is a bottom plan view thereof;
FIG. 9 is a perspective view of the dish drying rack where the dish drying rack is in a rolled-up state; and,
FIG. 10 is a left side elevational view of the dish drying rack where the dish drying rack is in the rolled-up state.
The dish drying rack is shown with a symbolic break in its length and the appearance of any portion of the dish drying rack between the break lines form no part of the claimed design.