Populating a combobox with binding source

I use the following to bind a combo I was wondering if it would be possible to show both the display and value:

something like

this.cboMain.DisplayMember ="TAXCODE" + "TAXPROVINCE";

    //ComboBox-CURRENTLY USED
            this.cboMain.DataSource = this.bs;
            this.cboMain.DisplayMember = "TAXPROVINCE";
            this.cboMain .ValueMember = "TAXCODE";