DirectoryInfo:文件搜索；XmlSerializer：xml串行化读入和存储；IComparer：Array排序

一、文件搜索：

1DirectoryInfo di = new DirectoryInfo(dataPath);
2FileInfo[] xmlFiles = di.GetFiles("*.xml");

二、xml串行化
1、读入

[XmlRoot("MapItems", Namespace = "http://www.gentek.com.cn/CommonLibs.UI.MapItems", IsNullable = false)]
    public class MapItems
    {
        [XmlAttribute]
        public string IconResxFile;
        [XmlArray("Items")]
        public MapItem[] Items;
        [XmlAttribute]
        public string MapImgFile;

        public MapItems();
    }

 public class MapItem
    {
        public Rectangle drawRect;
        public string Id;
        public bool isbig;
        public bool isdrawRect;
        public string m_Statement;
        public Point Pos;
        public bool Selected;
        public MapItem.CameraType Type;

  public enum CameraType
        {
            DOME = 0,
            FIXCAMERA = 1,
        }
    }

        FileStream stream ；
                XmlSerializer serializer = new XmlSerializer(typeof(MapItems));
                stream = new FileStream(xmlFileName, FileMode.Open);
                MapItems mapItems1= (MapItems)serializer.Deserialize(stream);

xml格式

<?xml version="1.0"?>
<MapItems xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" MapImgFile="鞍山新村站.jpg" IconResxFile="icons.resx" xmlns="http://www.gentek.com.cn/CommonLibs.UI.MapItems">
  <Items>
    <MapItem>
      <Id>110</Id>
      <Pos>
        <X>350</X>
        <Y>119</Y>
      </Pos>
      <Selected>false</Selected>
      <ItemIcon>1</ItemIcon>
      <Name>站厅设备走廊4</Name>
    </MapItem>
 </Items>
</MapItems>

2、存储

string fullFileName="directory/fileName.xml";
        serializer = new XmlSerializer(typeof(MapItems));
                stream = new FileStream(fullFileName, FileMode.OpenOrCreate);
                serializer.Serialize(stream, mapItems1);

最后关闭stream：stream.Close();
三：Array排序

 1public class myReverserClass : IComparer
 2        {
 3
 4            // Calls CaseInsensitiveComparer.Compare with the parameters reversed.
 5            int IComparer.Compare(object xobj, object yobj)
 6            {
 7                MapItem m1 = (MapItem)xobj;
 8                MapItem m2 = (MapItem)yobj;
 9                int x = Int32.Parse(m1.Id.Replace(" ", ""), System.Globalization.NumberStyles.AllowHexSpecifier);
10                int y = Int32.Parse(m2.Id.Replace(" ", ""), System.Globalization.NumberStyles.AllowHexSpecifier);
11
12                if (x > y)
13                    return 1;
14                if (x < y)
15                    return -1;
16                return 0;
17            }
18
19        }
20
21IComparer myComparer = new myReverserClass();
22MapItem[] items = mapItems.Items;
23Array.Sort(items, myComparer);