使用Asp.net C＃在DataSet中以4级嵌套读取xml数据

Question

I'm using XML to store data. And have four level nesting as given below

<?xml version="1.0" encoding="utf-8" ?>
<resrourceInfo>
    <month name="jan">
      <r>
         <rqstType></rqstType>
         <rsrceName></rsrceName>
         <dateRqstd></dateRqstd>
      </r>
      <r>
         <rqstType></rqstType>
         <rsrceName></rsrceName>
         <dateRqstd></dateRqstd>
      </r>
    </month>
    <month name="feb">
      <r>
         <rqstType></rqstType>
         <rsrceName></rsrceName>
         <dateRqstd></dateRqstd>
      </r>
      <r>
         <rqstType></rqstType>
         <rsrceName></rsrceName>
         <dateRqstd></dateRqstd>
      </r>
    </month>
</resourceInfo>

I want to treat this schema as

• All the months as Tables
• All the r as Rows
• All the tags inside r as Columns

I've used C# as given below

DataSet ds = new DataSet();
ds.ReadXml(HttpContext.Current.Server.MapPath("~/DB.xml"));

But it's not working as expected. Is there any other way I can do it ? Thanks in Advance

Answer 1

The XML wasn't saved as a DataSet. So you can do something like this

 using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Xml; using System.Xml.Linq; using System.Data; namespace ConsoleApplication2 { class Program { static void Main(string[] args) { string input = "<?xml version=\\"1.0\\" encoding=\\"utf-8\\" ?>" + "<resrourceInfo>" + "<month name=\\"jan\\">" + "<r>" + "<rqstType>1</rqstType>" + "<rsrceName>2</rsrceName>" + "<dateRqstd>3</dateRqstd>" + "</r>" + "<r>" + "<rqstType>4</rqstType>" + "<rsrceName>5</rsrceName>" + "<dateRqstd>6</dateRqstd>" + "</r>" + "</month>" + "<month name=\\"feb\\">" + "<r>" + "<rqstType>7</rqstType>" + "<rsrceName>8</rsrceName>" + "<dateRqstd>9</dateRqstd>" + "</r>" + "<r>" + "<rqstType>10</rqstType>" + "<rsrceName>11</rsrceName>" + "<dateRqstd>12</dateRqstd>" + "</r>" + "</month>" + "</resrourceInfo>"; XDocument doc = XDocument.Parse(input); DataSet ds = new DataSet(); foreach (XElement month in doc.Descendants("month")) { DataTable dt = ds.Tables.Add(month.Attribute("name").Value); foreach (XElement row in month.Elements("r")) { if (dt.Rows.Count < 1) { foreach (XElement col in row.Elements()) { dt.Columns.Add(col.Name.ToString(), typeof(int)); } } DataRow newRow = dt.Rows.Add(); foreach (XElement col in row.Elements()) { newRow[col.Name.ToString()] = col.Value; } } } } } }​