1. A mobile terminal, comprising: a touchscreen configured to display a data list including a plurality of data items and to receive a first input for selecting a classification condition within a desired data item among the plurality of data items; and a controller configured to: control the touchscreen to distinctively display the entire desired data item and distinctively display the classification condition within the desired data item, in response to the first input; identify at least one relevant data item of the plurality of data items from a remainder of the plurality of data items in response to the first input, the at least one relevant data item; and further control the touchscreen to distinctively display the entire at least one relevant data item satisfying the same classification condition and distinctively display the classification condition within the at least one relevant data item, concurrent with distinctively displaying the entire desired data item and the classification condition within the desired data item ; the touchscreen is further configured to display one or more data control icons on a prescribed region of the touchscreen and to receive a touch and drag input of the desired data item and the at least one relevant data item to a desired one of the one or more data control icons; and the controller is further configured to perform a control action corresponding to the desired data control icon to which the desired data item and the at least one relevant data item are dragged.