Insert delete update records in XML file -ASP.NET using c#

This is sample xml data structure we have created for this article

<?xml version="1.0" standalone="yes"?>

<name>Sachin</name>

<designation>Software Engineer</designation>

<city>Chennai</city>

<country>India</country>

</Employee>

<name>Suresh</name>

<designation>Web Developer</designation>

<city>New Delhi</city>

<country>India</country>

</Employee>

</EmployeeDetails>

Designer Source Code:

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"

"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

</head>

<body>

<div>

<asp:GridView ID="gvEmployee" runat="server" AutoGenerateColumns="false" ShowFooter="true"

style="margin-left: 113px" Width="1049px"

OnRowCommand="gvEmployee_OnRowCommand"

onrowcancelingedit="gvEmployee_RowCancelingEdit"

onrowdeleting="gvEmployee_RowDeleting" onrowediting="gvEmployee_RowEditing"

onrowupdating="gvEmployee_RowUpdating"

onpageindexchanging="gvEmployee_PageIndexChanging">

<asp:TemplateField HeaderText="Employee ID" HeaderStyle-Width="100px">

<asp:Label ID="lblEmpID" runat="server" Text='<%#DataBinder.Eval(

Container. DataItem,"empid") %>'></asp:Label>

</ItemTemplate>

<asp:TextBox ID="txtAddEmpID" runat="server"></asp:TextBox>

</FooterTemplate>

</asp:TemplateField>

<asp:TemplateField HeaderText="Name" HeaderStyle-Width="100px">

<asp:TextBox ID="txtName" runat="server" Text='<%#DataBinder.Eval(

Container. DataItem,"name") %>'></asp:TextBox>

</EditItemTemplate>

<asp:Label ID="lblName" runat="server" Text='<%#DataBinder.Eval(

Container. DataItem,"name") %>'></asp:Label>

</ItemTemplate>

<asp:TextBox ID="txtAddName" runat="server"></asp:TextBox>

</FooterTemplate>

</asp:TemplateField>

<asp:TemplateField HeaderText="Designation" HeaderStyle-Width="100px">

<asp:TextBox ID="txtDesignation" runat="server" Text='<%#DataBinder.Eval(

Container. DataItem,"designation") %>'></asp:TextBox>

</EditItemTemplate>

<asp:Label ID="lblDesignation" runat="server" Text='<%#DataBinder.Eval(

Container. DataItem,"designation") %>'></asp:Label>

</ItemTemplate>

<asp:TextBox ID="txtAddDesignation" runat="server"></asp:TextBox>

</FooterTemplate>

</asp:TemplateField>

<asp:TemplateField HeaderText="City" HeaderStyle-Width="100px">

<asp:TextBox ID="txtCity" runat="server" Text='<%#DataBinder.Eval(

Container. DataItem,"city") %>'></asp:TextBox>

</EditItemTemplate>

<asp:Label ID="lblCity" runat="server" Text='<%#DataBinder.Eval(

Container. DataItem,"city") %>'></asp:Label>

</ItemTemplate>

<asp:TextBox ID="txtAddCity" runat="server"></asp:TextBox>

</FooterTemplate>

</asp:TemplateField>

<asp:TemplateField HeaderText="Country" HeaderStyle-Width="200px">

<asp:TextBox ID="txtCountry" runat="server" Text='<%#DataBinder.Eval(

Container. DataItem,"country") %>' TextMode="MultiLine"></asp:TextBox>

</EditItemTemplate>

<asp:Label ID="lblCountry" runat="server" Text='<%#DataBinder.Eval(

Container. DataItem,"country") %>'></asp:Label>

</ItemTemplate>

<asp:TextBox ID="txtAddCountry" runat="server"></asp:TextBox>

</FooterTemplate>

</asp:TemplateField>

<asp:TemplateField HeaderText="Action" HeaderStyle-Width="150px">

<asp:LinkButton ID="lbtnUpdate" CommandName="Update" runat="server">

Update</asp:LinkButton>

<asp:LinkButton ID="lbtnCancel" CommandName="Cancel" runat="server">

Cancel</asp:LinkButton>

</EditItemTemplate>

<asp:LinkButton ID="lbtnEdit" runat="server" CommandName="Edit">

Edit</asp:LinkButton>

<asp:LinkButton ID="lbtnDelete" runat="server" CommandName="Delete">

Delete</asp:LinkButton>

</ItemTemplate>

<asp:LinkButton ID="lbtnAdd" runat="server" CommandName="Add">

Add</asp:LinkButton>

</FooterTemplate>

</asp:TemplateField>

</Columns>

<HeaderStyle BackColor="#666666" Font-Names="Cambria" ForeColor="White"

Height="30px" />

</asp:GridView>

</div>

</form>

</body>

</html>

Code Behind:

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Data;

using System.Xml;

public partial class _Default : System.Web.UI.Page

{

protected void Page_Load(object sender, EventArgs e)

{

if (!IsPostBack)

{

BindGrid();

}

protected void BindGrid()

{

DataSet ds = new DataSet();

DataTable dt = new DataTable();

ds.ReadXml(Server.MapPath("EmployeeDetails.xml"));

if (ds != null && ds.HasChanges())

{

gvEmployee.DataSource = ds;

gvEmployee.DataBind();

}

else

{

gvEmployee.DataBind();

}

protected void gvEmployee_OnRowCommand(object sender, GridViewCommandEventArgs e)

{

if (e.CommandName.Equals("Add"))

{

TextBox txtAddEmpID = (TextBox)gvEmployee.FooterRow.FindControl("txtAddEmpID");

TextBox txtAddName = (TextBox)gvEmployee.FooterRow.FindControl("txtAddName");

TextBox txtAddDesignation = (TextBox)gvEmployee.FooterRow.FindControl("txtAddDesignation");

TextBox txtAddCity = (TextBox)gvEmployee.FooterRow.FindControl("txtAddCity");

TextBox txtAddCountry = (TextBox)gvEmployee.FooterRow.FindControl("txtAddCountry");

XmlDocument xmldoc = new XmlDocument();

xmldoc.Load(Server.MapPath("EmployeeDetails.xml"));

XmlElement parentelement = xmldoc.CreateElement("Employee");

XmlElement empid = xmldoc.CreateElement("empid");

XmlElement name = xmldoc.CreateElement("name");

XmlElement designation = xmldoc.CreateElement("designation");

XmlElement city = xmldoc.CreateElement("city");

XmlElement country = xmldoc.CreateElement("country");

empid.InnerText = txtAddEmpID.Text;

name.InnerText = txtAddName.Text;

designation.InnerText = txtAddDesignation.Text;

city.InnerText = txtAddCity.Text;

country.InnerText = txtAddCountry.Text;

parentelement.AppendChild(empid);

parentelement.AppendChild(name);

parentelement.AppendChild(designation);

parentelement.AppendChild(city);

parentelement.AppendChild(country);

xmldoc.DocumentElement.AppendChild(parentelement);

xmldoc.Save(Server.MapPath("EmployeeDetails.xml"));

BindGrid();

}

protected void gvEmployee_RowEditing(object sender, GridViewEditEventArgs e)

{

gvEmployee.EditIndex = e.NewEditIndex;

BindGrid();

}

protected void gvEmployee_RowDeleting(object sender, GridViewDeleteEventArgs e)

{

BindGrid();

DataSet ds = gvEmployee.DataSource as DataSet;

ds.Tables[0].Rows[gvEmployee.Rows[e.RowIndex].DataItemIndex].Delete();

ds.WriteXml(Server.MapPath("EmployeeDetails.xml"));

BindGrid();

}

protected void gvEmployee_RowUpdating(object sender, GridViewUpdateEventArgs e)

{

int i = gvEmployee.Rows[e.RowIndex].DataItemIndex;

string Name = (gvEmployee.Rows[e.RowIndex].FindControl("txtName") as TextBox).Text;

string Designation = (gvEmployee.Rows[e.RowIndex].FindControl("txtDesignation") as TextBox).Text;

string City = (gvEmployee.Rows[e.RowIndex].FindControl("txtCity") as TextBox).Text;

string Country = (gvEmployee.Rows[e.RowIndex].FindControl("txtCountry") as TextBox).Text;

gvEmployee.EditIndex = -1;

BindGrid();

DataSet ds = (DataSet)gvEmployee.DataSource;

ds.Tables[0].Rows[i]["name"] = Name;

ds.Tables[0].Rows[i]["designation"] = Designation;

ds.Tables[0].Rows[i]["city"] = City;

ds.Tables[0].Rows[i]["country"] = Country;

ds.WriteXml(Server.MapPath("EmployeeDetails.xml"));

BindGrid();

}

protected void gvEmployee_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)

{

gvEmployee.EditIndex = -1;

BindGrid();

}

protected void gvEmployee_PageIndexChanging(object sender, GridViewPageEventArgs e)

{

gvEmployee.PageIndex = e.NewPageIndex;

BindGrid();

}

DotNet-Jitendra(Asp.Net, C#, Sql Server, Linq, Ajax, Javascript, jQuery, Xml, MVC)

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Monday 14 October 2013

Insert delete update records in XML file -ASP.NET using c#

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