C#/.NET数据存储到XML
有时候，在存储数据的时候要求存储成XML格式，我们用代码一行一行写的话比较繁琐，我们可以先把数据放到IList中，然后把IList中的数据放到DataSet中，DataSet有个方法WriteXml()把DataSet中的数据存储到XML中，看下面代码：

存储到xml:

internal void Save()        {            System.Data.DataSet ds = ChangeToDataSet(IList);            ds.ReadXmlSchema(getStrByResFileName("PosLog.xsd")); //格式，这步可以不要            string path = "要存的路径";            ds.WriteXml(path);        }//IList转化为DataSet：private System.Data.DataSet ChangeToDataSet(IList list)        {            System.Data.DataSet ds = new System.Data.DataSet();            System.Data.DataTable table = new System.Data.DataTable("CouponInfo");            ds.Tables.Add(table);            table.Columns.Add("ID", typeof(Guid));            table.Columns.Add("PromotionID", typeof(string));            table.Columns.Add("Header", typeof(string));            table.Columns.Add("Discription", typeof(string));            table.Columns.Add("ExtraPrintInfo", typeof(string));            table.Columns.Add("Piclist", typeof(string));            table.Columns.Add("ExpiryDate", typeof(DateTime));            table.Columns.Add("Template", typeof(string));            table.Columns.Add("Barcode", typeof(string));            foreach (CouponInfo cp in list)            {                System.Data.DataRow row = table.NewRow();                row[0] = cp.ID;                row[1] = cp.PromotionID;                row[2] = cp.Header;                row[3] = cp.Discription;                row[4] = cp.ExtraPrintInfo;                row[5] = cp.Piclist;                row[6] = cp.ExpiryDate;                row[7] = cp.Template;                row[8] = cp.Barcode;                ds.Tables["CouponInfo"].Rows.Add(row);            }            return ds;        }

internal void Fatch()        {            System.Data.DataSet ds = new System.Data.DataSet();            ds.ReadXml(AppDomain.CurrentDomain.BaseDirectory + "CouponList.xml");            SetCuoponList(ds);         }private void SetCuoponList(System.Data.DataSet ds)        {            if (ds.Tables.Count != 0)            {                foreach (System.Data.DataRow row in ds.Tables[0].Rows)                {                    CouponInfo coupon = new CouponInfo();                    coupon.SetID(new Guid(row["ID"].ToString()));                    coupon.PromotionID = row["PromotionID"].ToString();                    coupon.Header = row["Header"].ToString();                    coupon.Discription = row["Discription"].ToString();                    coupon.ExtraPrintInfo = row["ExtraPrintInfo"].ToString();                    coupon.Piclist = row["Piclist"].ToString();                    coupon.ExpiryDate = DateTime.Parse(row["ExpiryDate"].ToString());                    coupon.Template = row["Template"].ToString();                    coupon.Barcode = row["Barcode"].ToString();                    this.InnerList.Add(coupon);                }            }            else            {                //throw new Exception("CouponList File is Empty");            }        }