C# List.Sort() 排序; DataView 對DataTable 排序

 

    List<string> sortedHeight = new List<string>();            foreach (var cs in contourDoc.SelectNodes("Xml/ContourSet"))            {                XmlElement tempEle = cs as XmlElement;                sortedHeight.Add(tempEle.Attributes["height"].Value);            }            sortedHeight.Sort(HeightComapare);

 

Sort的參數類型是傳回值為int的方法

        private static int HeightComapare(string x, string y)        {            return (int.Parse(x) - int.Parse(y));        }

 

傳入值："0" "180" "30" "90"

傳回值："0" "30" "90" "180"

 

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二、DataView 對DataTable 排序

  //按BuildingName 長度 排序            dt.Columns.Add("NameLength");            for (int i = 0; i <= dt.Rows.Count - 1; i++) {                dt.Rows[i]["NameLength"] = dt.Rows[i]["BuildingName"].ToString().Length;            }            DataView tempDv = dt.DefaultView;            tempDv.Sort = "NameLength asc";//變更DataView的順序            dt=tempDv.ToTable();//從DV產生dataTable