DropDownlist in Razor

@Html.DropDownListFor(x => x.Name, new SelectList(Model.lstBasis, "valuefield", "textfield"),

            new { @id = "clientIncBasis", @class = "select", OnFocus = "doFocusCbo(this)", OnBlur = "doBlur(this)", onchange = "cboIncomeBasisOnChange(0,0)" })