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<%@ Page Language="C#" %>
<%@ Import Namespace="System.Xml" %>
<script runat="server">
protected void btnSave_Click(object sender, EventArgs e)
{
string xmlPath = MapPath("Books.xml");
XmlDocument doc = new XmlDocument();
//Check if the file already exists or not
if (System.IO.File.Exists(xmlPath))
{
doc.Load(xmlPath);
XmlNode bookNode = CreateBookNode(doc);
//Get reference to the book node and append the book node to it
XmlNode bookStoreNode = doc.SelectSingleNode("bookstore");
bookStoreNode.AppendChild(bookNode);
lblResult.Text = "XML Document has been successfully updated";
}
else
{
XmlNode declarationNode = doc.CreateXmlDeclaration("1.0", "", "");
doc.AppendChild(declarationNode);
XmlNode comment = doc.CreateComment("This file represents a fragment of a book store inventory database");
doc.AppendChild(comment);
XmlNode bookstoreNode = doc.CreateElement("bookstore");
XmlNode bookNode = CreateBookNode(doc);
//Append the book node to the bookstore node
bookstoreNode.AppendChild(bookNode);
//Append the bookstore node to the document
doc.AppendChild(bookstoreNode);
lblResult.Text = "XML Document has been successfully created";
}
doc.Save(xmlPath);
}
XmlNode CreateBookNode(XmlDocument doc)
{
XmlNode bookNode = doc.CreateElement("book");
//Add the genre attribute to the book node
XmlAttribute genreAttribute = doc.CreateAttribute("genre");
genreAttribute.Value = txtGenre.Text;
bookNode.Attributes.Append(genreAttribute);
//Add all the children of the book node
XmlNode titleNode = doc.CreateElement("title");
titleNode.InnerText = txtTitle.Text;
bookNode.AppendChild(titleNode);
//Create the author node and its children
XmlNode authorNode = doc.CreateElement("author");
XmlNode firstNameNode = doc.CreateElement("first-name");
firstNameNode.InnerText = txtFirstName.Text;
authorNode.AppendChild(firstNameNode);
XmlNode lastNameNode = doc.CreateElement("last-name");
lastNameNode.InnerText = txtLastName.Text;
authorNode.AppendChild(lastNameNode);
bookNode.AppendChild(authorNode);
XmlNode priceNode = doc.CreateElement("price");
priceNode.InnerText = txtPrice.Text;
bookNode.AppendChild(priceNode);
return bookNode;
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>Creating an XmlDocument</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<table>
<tr>
<td colspan="2" style="width: 174px; height: 40px">
<b>Book Details:</b>
</td>
</tr>
<tr>
<td style="width: 101px; height: 44px">
Genre:
</td>
<td style="width: 204px; height: 44px">
<asp:TextBox ID="txtGenre" runat="server" Width="201px"></asp:TextBox>
</td>
</tr>
<tr>
<td style="width: 101px; height: 44px">
Title:
</td>
<td style="width: 204px; height: 44px">
<asp:TextBox ID="txtTitle" runat="server" Width="201px"></asp:TextBox>
</td>
</tr>
<tr>
<td style="width: 101px; height: 41px">
First Name:
</td>
<td style="width: 204px; height: 41px">
<asp:TextBox ID="txtFirstName" runat="server" Width="201px"></asp:TextBox>
</td>
</tr>
<tr>
<td style="width: 101px; height: 41px">
Last Name:
</td>
<td style="width: 204px; height: 41px">
<asp:TextBox ID="txtLastName" runat="server" Width="201px"></asp:TextBox>
</td>
</tr>
<tr>
<td style="width: 101px; height: 41px">
Price:
</td>
<td style="width: 204px; height: 41px">
<asp:TextBox ID="txtPrice" runat="server" Width="201px"></asp:TextBox>
</td>
</tr>
<tr>
<td colspan="2" style="width: 101px; height: 41px">
<asp:Button Text="Save" runat="server" ID="btnSave" Width="95px" OnClick="btnSave_Click"/>
</td>
</tr>
<tr>
<td colspan="2" style="width: 101px; height: 41px">
<asp:Label Text="Save" runat="server" ID="lblResult" Width="295px"/>
</td>
</tr>
</table>
</div>
</form>
</body>
</html>
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