Recently, metamaterial-inspired diffraction gratings (or metagratings) have demonstrated unprecedented efficiency in wavefront manipulation by means of relatively simple structures. Conventional one-dimensional (1D) gratings have a profile modulation in one direction and a translation symmetry in the other. In 1D metagratings, the translation invariant direction is engineered at a subwavelength scale, which allows one to accurately control polarization line currents and, consequently, the scattering pattern. In this paper, we present the design and experimental results of a reconfigurable metagrating operating at 14 GHz. The unit cell of the metagrating incorporates a varactor diode as a tunable element and an additional passive inductive grid is used to effectively decrease the minimum capacitance of the varactor. By varying the applied bias voltage, one is able to perform beam steering as well as generate multiple beams with a single feeding horn antenna.