The ornamental design for a tablelamp, as shown and described.
FIG. 1 is a front, top perspective view of a table lamp showing my new design;
FIG. 2 is a rear, bottom perspective view thereof;
FIG. 3 is a front elevation view thereof;
FIG. 4 is a right side elevation view thereof;
FIG. 5 is a rear elevation view thereof;
FIG. 6 is a left side elevation view thereof;
FIG. 7 is a top plan view thereof; and,
FIG. 8 is a bottom plan view thereof.
The broken line showing of the bulb and electrical cord is for the purpose of illustrating portions of the table lamp and forms no part of the claimed design.