Xml读写(使用XDocument)

 1 public static DataTable ToDataTable(this XDocument xDoc, string sheetName)
 2         {
 3             //拿到表【sheetName】
 4             var curSheet = from sheet in xDoc.Root.Elements() where sheet.Attribute("SheetName").Value == sheetName select sheet;
 5             var dt = new DataTable();
 6             var head = from ele in curSheet.Elements() where ele.Name == "Head" select ele;
 7             //循环写dt表头名，字段类型
 8             foreach (var ele in head.Elements())
 9             {
10                 var typeString = ele.Attribute("Type").Value;
11                 dt.Columns.Add(ele.Value, Type.GetType(typeString));
12             }
13             var data = from ele in curSheet.Elements() where ele.Name == "Data" select ele;
14             //循环写dt中的数据
15             foreach (var ele in data.Elements())
16             {
17                 dt.Rows.Add(ele.Elements().Select(s => s.Value).ToArray());
18             }
19             return dt;
20         }
21 
22         public static XElement ToXmlSheet(this DataTable dt,string sheetName)
23         {
24             //添加表元素
25             var aNewSheet = new XElement("XmlSheet", new XAttribute("SheetName",sheetName),
26                             new XElement("Head"),
27                             new XElement("Data")
28                             );
29             //写Head元素
30             var head = aNewSheet.Element("Head");
31             foreach (DataColumn column in dt.Columns)
32             {
33                 head.Add(new XElement("Field", column.ToString(), new XAttribute("Type", column.DataType.ToString())));
34             }
35             //写Data元素
36             var data = aNewSheet.Element("Data");
37             foreach (DataRow row in dt.Rows)
38             {
39                 var curRow = new XElement("Row");
40                 var cells = row.ItemArray.Select(c => new XElement("Cell", c));
41                 foreach (var cell in cells)
42                 {
43                     curRow.Add(cell);
44                 }
45                 data.Add(curRow);
46             }
47             return aNewSheet;
48         }