The ornamental design for a tablelamp, as shown and described.
FIG. 1 is a top, front, and left side perspective view of a table lamp showing our new design;
FIG. 2 is a front perspective view thereof;
FIG. 3 is a rear perspective view thereof;
FIG. 4 is a top plan view thereof;
FIG. 5 is a bottom plan view thereof;
FIG. 6 is a right side elevational view thereof; and,
FIG. 7 is a left side elevational view thereof.
The broken-line disclosure of elements beneath the angled shade are for illustrative purposes only and understood to form no part of the claimed design.