protected void Page_Load(object sender, EventArgs e) { allItems = (List<product_image>)Session["allItems"]; myDB = (database)Session["myDB"]; myDB.retrieveImagesCollection(); imgColl = myDB.getImagesCollection(); elements.loadElements(imgColl, colorList, lineList, lightList, formList, spaceList, textureList, patternList, massList, balanceList, unityList, harmonyList, rhythmList, proportionList, varietyList, emphasisList, scaleList, typeList); }