code: function(oList, iWidth){
  		iWidth = ExactAttribute._checkWidth(iWidth);
  		var sPos = oList._bRTL ? "right" : "left";
  		oList._iCurrentWidth = iWidth;
  		oList._getAtt()._setWidth(oList._iCurrentWidth);
  		oList.$("lst").css("width", iWidth + "px");
  		oList.$("rsz").css(sPos, (iWidth - 4) + "px");
  		if (oList._isTop()) {
  			if (!isTopHidden(oList)) {
  				oList.$("head").css("width", iWidth + "px");
  				oList.$("cntnt").css(sPos, (iWidth + 8) + "px");
  				oList.$("scroll").css(sPos, (iWidth + 8) + "px");
  			}
  		} else {
  			if (!oList.$().hasClass("sapUiUx3ExactLstCollapsed")) {
  				oList.$("cntnt").css("margin-" + sPos, iWidth + "px");
  			}
  		}
  	}
docs: Sets the width of the list to the given width (maybe the width is adapted to the allowed range (@see checkWidth))