Introduction:
Here
I will explain how to read node values from XML document using asp.net.
Description:
In previous article I explained how to insert and read data from xml in asp.net. During
working with XML I got requirement like read child node values from xml file
and display it on webpage. My XML File Name as “SampleXML.xml” and that would be like this
<?xml version="1.0" encoding="utf-8" ?>
<users>
<user>
<FirstName>Suresh</FirstName>
<LastName>Dasari</LastName>
<UserName>SureshDasari</UserName>
<Job>
<Role>Team Leader</Role>
</Job>
</user>
<user>
<FirstName>Mahesh</FirstName>
<LastName>Dasari</LastName>
<UserName>MaheshDasari</UserName>
<Job>
<Role>SOftware Developer</Role>
</Job>
</user>
<user>
<FirstName>Madhav</FirstName>
<LastName>Yemineni</LastName>
<UserName>MadhavYemineni</UserName>
<Job>
<Role>Business Analyst</Role>
</Job>
</user>
</users>
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Now
I need to get node values from this xml file and bind that data to gridview for
that first create xml file in your application and give name as “SampleXML.xml” and write following
code in your aspx page like this
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Read XML Node values and bind data to gridview</title>
</head>
<body>
<form id="form1"
runat="server">
<asp:GridView ID="gvDetails"
runat="server">
<HeaderStyle BackColor="#df5015" Font-Bold="true" ForeColor="White" />
</asp:GridView>
</form>
</body>
</html>
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After
that add following namespaces in codebehind
C# Code
using System;
using System.Data;
using System.Xml;
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Now
add following code in code behind
protected void
Page_Load(object sender, EventArgs e)
{
if(!IsPostBack)
{
//Bind Data to Gridview
GetXMLData();
}
}
// This method is used to get xml
node values and bind to gridview
protected void
GetXMLData()
{
DataTable dt = new DataTable();
dt.Columns.Add("FirstName",
typeof(string));
dt.Columns.Add("LastName",
typeof(string));
dt.Columns.Add("UserName",
typeof(string));
dt.Columns.Add("Role",
typeof(string));
XmlDocument xmldoc = new
XmlDocument();
xmldoc.Load(Server.MapPath("SampleXML.xml"));
XmlNodeList nodeList = xmldoc.SelectNodes("/users/user");
foreach (XmlNode
node in nodeList)
{
DataRow dtrow = dt.NewRow();
dtrow["FirstName"]
= node["FirstName"].InnerText;
dtrow["LastName"]
= node["LastName"].InnerText;
dtrow["UserName"]
= node["UserName"].InnerText;
dtrow["Role"]
= node["Job"]["Role"].InnerText;
dt.Rows.Add(dtrow);
}
gvDetails.DataSource = dt;
gvDetails.DataBind();
}
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VB.NET Code
Imports System.Data
Imports System.Xml
Partial Class
Default
Inherits System.Web.UI.Page
Protected Sub
Page_Load(ByVal sender As Object, ByVal e As
EventArgs) Handles Me.Load
If Not IsPostBack Then
'Bind Data to Gridview
GetXMLData()
End If
End Sub
' This method is used to get xml
node values and bind to gridview
Protected Sub
GetXMLData()
Dim dt As New DataTable()
dt.Columns.Add("FirstName",
GetType(String))
dt.Columns.Add("LastName",
GetType(String))
dt.Columns.Add("UserName",
GetType(String))
dt.Columns.Add("Role",
GetType(String))
Dim xmldoc As New XmlDocument()
xmldoc.Load(Server.MapPath("SampleXML.xml"))
Dim nodeList As XmlNodeList =
xmldoc.SelectNodes("/users/user")
For Each node As XmlNode In
nodeList
Dim dtrow As DataRow =
dt.NewRow()
dtrow("FirstName")
= node("FirstName").InnerText
dtrow("LastName")
= node("LastName").InnerText
dtrow("UserName")
= node("UserName").InnerText
dtrow("Role")
= node("Job")("Role").InnerText
dt.Rows.Add(dtrow)
Next
gvDetails.DataSource = dt
gvDetails.DataBind()
End Sub
End Class
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Demo
 |
Download
sample code attached
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2 comments :
Fabulous Work Brother .........Thanx for all ur posts...
thanks a lot suresh!!!!
i struggle for this three days finally i get it...