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== XML document validation against XML schema==



<source lang="csharp">
<%@ Page Language="C#" %>
<%@ Import Namespace="System.Xml" %>
<%@ Import Namespace="System.Xml.Schema" %>
<script runat="server">
private XmlTextReader reader;
private XmlValidatingReader validator;

void Page_Load(Object Sender, EventArgs e) {
try {
reader = new XmlTextReader(Server.MapPath("Data.xml"));
validator = new XmlValidatingReader(reader);
validator.ValidationType = ValidationType.XDR;

validator.ValidationEventHandler += new ValidationEventHandler(this.ShowError);

while (validator.Read()) {
}
} catch (Exception ex) {
Response.Write("Error accessing XML file");
} finally {
reader.Close();
}
}

void ShowError(Object Sender, ValidationEventArgs e) {
Response.Write("<font color=\"red\">" + e.Message + "<br>");

if (reader.LineNumber > 0) {
Response.Write("Line: " + reader.LineNumber + " Position: " + reader.LinePosition + "</font>");
}
}
</script>
<html><body>
</body></html>
File: Data.xml
<bookstore xmlns="x-schema:Data.xdr">
<book genre="novel" style="hardcover">
<title>title 1</title>
<price>1.5</price>
<author>
<first-name>M</first-name>
<last-name>A</last-name>
</author>
</book>
</bookstore>
File: Data.xdr
<?xml version="1.0"?>
<Schema xmlns="urn:schemas-microsoft-com:xml-data"
xmlns:dt="urn:schemas-microsoft-com:datatypes">
<ElementType name="first-name" content="textOnly"/>
<ElementType name="last-name" content="textOnly"/>
<ElementType name="name" content="textOnly"/>
<ElementType name="price" content="textOnly"
dt:type="fixed.14.4"/>
<ElementType name="author" content="eltOnly" order="one">
<group order="seq">
<element type="name"/>
</group>
<group order="seq">
<element type="first-name"/>
<element type="last-name"/>
</group>
</ElementType>
<ElementType name="title" content="textOnly"/>
<AttributeType name="genre" dt:type="string"/>
<AttributeType name="style" dt:type="enumeration"
dt:values="paperback hardcover"/>
<ElementType name="book" content="eltOnly">
<attribute type="genre" required="yes"/>
<attribute type="style" required="yes"/>
<element type="title"/>
<element type="price"/>
<element type="author"/>
</ElementType>
<ElementType name="bookstore" content="eltOnly">
<element type="book"/>
</ElementType>
</Schema></source>

== XML validation==



<source lang="csharp">
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="XmlValidation" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>Xml Validation</title>
</head>
<body>
<form id="form1" runat="server">
<div class="Box">
<asp:RadioButton id="optValid"
runat="server"
Text="Use Data.xml"
Checked="True"
GroupName="Valid">
</asp:RadioButton>
<asp:button id="cmdValidate"
runat="server"
Text="Validate XML"
OnClick="cmdValidate_Click">
</asp:button>
</div>
<div>
<asp:Label id="lblStatus" runat="server" EnableViewState="False"></asp:Label>
</div>
</form>
</body>
</html>
File: Default.aspx.cs
using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Xml.Schema;
using System.IO;
using System.Xml;
public partial class XmlValidation : System.Web.UI.Page
{
protected void cmdValidate_Click(object sender, EventArgs e)
{
string filePath = "Data.xml";
lblStatus.Text = "";
XmlReaderSettings settings = new XmlReaderSettings();
settings.Schemas.Add("yourURI",Request.PhysicalApplicationPath + "Data.xsd");
settings.ValidationType = ValidationType.Schema;
settings.ValidationEventHandler += new ValidationEventHandler(ValidateHandler);
FileStream fs = new FileStream(filePath, FileMode.Open);

XmlReader r = XmlReader.Create(fs, settings);
while (r.Read())
{
}
fs.Close();
lblStatus.Text += "<br />Complete.";
}
public void ValidateHandler(Object sender, ValidationEventArgs e)
{
lblStatus.Text += "Error: " + e.Message + "<br />";
}
}
File: Data.xml

<?xml version="1.0" standalone="yes"?>
<SuperProProductList xmlns="yourURI" >
<Product ID="1" Name="Chair">
<Price>49.33</Price>
</Product>
<Product ID="2" Name="Car">
<Price>43398.55</Price>
</Product>
<Product ID="3" Name="Fresh Fruit Basket">
<Price>49.99</Price>
</Product>
</SuperProProductList>
File: Data.xsd
<?xml version="1.0"?>
<xs:schema
targetNamespace="yourURI"
xmlns:xs="http://www.w3.org/2001/XMLSchema"
elementFormDefault="qualified" >
<xs:element name="SuperProProductList">
<xs:complexType>
<xs:sequence maxOccurs="unbounded">
<xs:element name="Product">
<xs:complexType>
<xs:sequence>
<xs:element name="Price" minOccurs="1" type="xs:double" />
</xs:sequence>
<xs:attribute name="ID" use="required" type="xs:int" />
<xs:attribute name="Name" use="required" type="xs:string" />
</xs:complexType>
</xs:element>
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:schema></source>

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в 15:30, 26 мая 2010

Admin: 1 версия