In this post, I will show you how to convert the XML node to DataTable using C#. XML is a very popular format for sharing data between two applications. Sometimes we need to parse the XML to our business objects (in our case data table).
DataSet represents an in-memory cache of data.{alertSuccess}
<%@ Page Language="C#" AutoEventWireup="true"
CodeFile="XmlNodeListToDataTable.aspx.cs" Inherits="XmlNodeListToDataTable" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:GridView ID="GridView1" runat="server"></asp:GridView>
</div>
</form>
</body>
</html>
public partial class XmlNodeListToDataTable: System.Web.UI.Page {
protected void Page_Load(object sender, EventArgs e) {
XmlDocument doc = new XmlDocument();
doc.Load(Server.MapPath("Category.xml"));
//Get and display all the book titles.
XmlElement root = doc.DocumentElement;
XmlNodeList elemList = root.GetElementsByTagName("Category");
GridView1.DataSource = ConvertXmlNodeListToDataTable(elemList);
GridView1.DataBind();
}
public static DataTable ConvertXmlNodeListToDataTable(XmlNodeList xnl) {
DataTable dt = new DataTable();
int TempColumn = 0;
foreach(XmlNode node in xnl.Item(0).ChildNodes) {
TempColumn++;
DataColumn dc = new DataColumn(node.Name, System.Type.GetType("System.String"));
if (dt.Columns.Contains(node.Name)) {
dt.Columns.Add(dc.ColumnName = dc.ColumnName + TempColumn.ToString());
} else {
dt.Columns.Add(dc);
}
}
int ColumnsCount = dt.Columns.Count;
for (int i = 0; i < xnl.Count; i++) {
DataRow dr = dt.NewRow();
for (int j = 0; j < ColumnsCount; j++) {
dr[j] = xnl.Item(i).ChildNodes[j].InnerText;
}
dt.Rows.Add(dr);
}
return dt;
}
}
<?xml version="1.0" encoding="utf-8"?>
<CategoryList>
<Category>
<MainCategory ID="1">XML</MainCategory>
<SubCategory>Basic</SubCategory>
<Description>List of XML articles.</Description>
<Active>Yes</Active>
</Category>
<Category>
<MainCategory ID="2">XML1</MainCategory>
<SubCategory>Basic1</SubCategory>
<Description>List of XML articles1.</Description>
<Active>Yes</Active>
</Category>
</CategoryList>