Asp.net小技术总结2

1.Arraylist中每项是数组的操作方法

public  ArrayList ImgList
         {
            get
            {
                ArrayList arrImgList = new ArrayList();
                for(int i = 0; i<lb_ImageList.Items.Count; i++)
                {
                    string [] strImgItem = new string[2];
                
                    ListItem LI = this.lb_ImageList.Items[i];
                    strImgItem[0] =LI.Text;
                    strImgItem[1]=LI.Value;
                    
                    arrImgList.Add(strImgItem);
                }
                return arrImgList;
            }
            set
            {
                lb_ImageList.Items.Clear();

                ArrayList arrImgList = (ArrayList)value;
                for(int i = 0;i<arrImgList.Count;i++)
                {                    
                    string strFileName = ((string[])arrImgList[i]).GetValue(0).ToString();
                    string strAttchmentID = ((string[])arrImgList[i]).GetValue(1).ToString();
                    
                    ListItem LI = new ListItem(strFileName,strAttchmentID);
                    
                    lb_ImageList.Items.Add(LI);
                }
            }
        }

2.清除页面级缓存

Response.Cache.SetCacheability(System.Web.HttpCacheability.NoCache);