ASP.Net/XML/XmlDataSource — различия между версиями

Версия 15:30, 26 мая 2010

Содержание

1 asp:Xml datasource
2 Binding XML Data from an XmlDataSource Control
3 Binding XML Data from Other Sources
4 Caching XML Data in an XmlDataSource Control
5 Create asp XmlDataSource
6 Enter an XML filename or raw XML starting with
7 Fill XmlDataSource with your code
8 Handling XmlDataSource Events
9 Programmatically Creating an XmlDataSource Control
10 Updating Data through XmlDataSource Control
11 Use ItemTemplate and XPath to display data from XmlDataSource
12 Using Inline XML Data in an XmlDataSource Control
13 Using the XmlDataSource control to consume an RSS feed
14 XmlDataSource and XML document

asp:Xml datasource

<!-- File: XmlAdPanel.aspx -->
<%@ Page language="c#" %>
<HTML>
<body>
<form runat="server">
<asp:Xml id=_xml1 runat="server" 
         DocumentSource="sample.xml"  
         TransformSource="sampleTransform.xsl">
</asp:Xml><br/>
<asp:Panel id=_p1 runat=server HorizontalAlign="center"
                  Visible="true" bgColor="cornsilk">
  <asp:Label id=_l1 runat=server>Panel label</asp:Label>
  <br/>
  <asp:TextBox id=_tb1 runat=server/>
  <br/>
  <asp:Button Text="Push me!" runat=server/>
</asp:Panel> 
</FORM>
  
  </body>
</HTML>

<%--
<items>
  <item>item 1</item>
  <item>item 2</item>
  <item>item 3</item>
  <item>item 4</item>
</items>
--%>
<%--
<xsl:transform xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
               version="1.0">
                
  <xsl:output method="html" indent="yes"/>
<xsl:template match="item">
  <li>
    <xsl:apply-templates />
  </li>
</xsl:template>
<xsl:template match="items">
  <ul>
    <xsl:apply-templates />
  </ul>
</xsl:template>
<!-- Root template match -->  
<xsl:template match="/">
  <xsl:apply-templates/>
</xsl:template>
</xsl:transform>

--%>

Binding XML Data from an XmlDataSource Control

<%@ Page Language="C#" %>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
    <title>Binding XML Data from an XmlDataSource Control</title>
</head>
<body>    
    <form id="form1" runat="server">
    <div>
        <asp:TreeView ID="bookView" Runat="server" DataSourceID="bookSource">
            <DataBindings>
                <asp:TreeNodeBinding ImageUrl="~/Images/openbook.gif" TextField="Title" DataMember="book"></asp:TreeNodeBinding>
                <asp:TreeNodeBinding ImageUrl="~/Images/notepad.gif" TextField="name" DataMember="chapter"></asp:TreeNodeBinding>
            </DataBindings>
        </asp:TreeView>        
        <asp:XmlDataSource ID="bookSource" Runat="server" DataFile="~/Data.xml"
            XPath="Data/genre[@name="Fiction"]/book">
        </asp:XmlDataSource>   
    </div>         
    </form>
    XPath="Data/genre[@name="Fiction"]/book"</body>
</html>
File: ~/Data.xml
<Data>
  <genre name="Fiction">
    <book ISBN="1" Title="title 1" Price="19.99" Discount="1.999">
      <chapter num="1" name="Introduction">
        Abstract...
      </chapter>
      <chapter num="2" name="Body">
        Abstract...
      </chapter>
      <chapter num="3" name="Conclusion">
        Abstract...
      </chapter>
    </book>
  </genre>
  <genre name="NonFiction">
    <book ISBN="2" Title="title 2" Price="27.95" Discount="2.795">
      <chapter num="1" name="Introduction">
        Abstract...
      </chapter>
      <chapter num="2" name="Body">
        Abstract...
      </chapter>
      <chapter num="3" name="Conclusion">
        Abstract...
      </chapter>
    </book>
  </genre>
</Data>

Binding XML Data from Other Sources

<%@ Page Language="C#" %>
<%@ Import Namespace="System.Data.SqlClient" %>
<%@ Import Namespace="System.Xml" %>
<%@ Import Namespace="System.Web.Configuration" %>
<script runat="server">    
protected void Page_Load(object sender, EventArgs e)
{
    string connectionString = WebConfigurationManager.ConnectionStrings["AdventureWorks"].ConnectionString;
    using (SqlConnection connection = new SqlConnection(connectionString))
    {
        connection.Open();
        string sql = "Select ProductID, Name from Production.Product AS Product " +
            "Order by ProductID FOR XML AUTO, ROOT("Products")";
        SqlCommand command = new SqlCommand(sql, connection);
        XmlReader reader = command.ExecuteXmlReader();        
        XmlDocument doc = new XmlDocument();
        doc.Load(reader);
        productsSource.Data = doc.OuterXml;
        productsSource.XPath = "Products/Product";
    }
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title>Binding XML Data from Other Sources</title>
</head>
<body>    
  <form id="form1" runat="server">
    <asp:XmlDataSource id="productsSource" runat="server"/>
     <asp:GridView ID="productView" Runat="server" DataSourceID="productsSource" 
        AutoGenerateColumns="False">
        <Columns>
            <asp:BoundField HeaderText="Product ID" DataField="ProductID"></asp:BoundField>
            <asp:BoundField HeaderText="Product Name" DataField="Name"></asp:BoundField>                
        </Columns>
     </asp:GridView>    
  </form>
</body>
</html>

Caching XML Data in an XmlDataSource Control

       
<%--
Code Revised from
       
Professional ASP.NET 2.0 XML (Programmer to Programmer) (Paperback)
by Thiru Thangarathinam 
# Publisher: Wrox (January 18, 2006)
# Language: English
# ISBN: 0764596772
--%>         
       
<%@ Page Language="C#" %>
<%@ Import Namespace="System.Xml" %>
<script runat="server">
    void Page_Load(object sender, EventArgs e)
    {
        lblCurrentTime.Text = "Current Time is : " + DateTime.Now.ToLongTimeString();    
    }   
   
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
    <title>Caching XML Data in an XmlDataSource Control</title>
</head>
<body>    
    <form id="form1" runat="server">
    <div>            
        <asp:Label Runat="server" ID="lblCurrentTime"></asp:Label>           
        <asp:GridView ID="GridView1" Runat="server" DataSourceID="XmlDataSource1" AutoGenerateColumns="False">
            <Columns>
                <asp:BoundField HeaderText="ISBN" DataField="ISBN" SortExpression="ISBN"></asp:BoundField>
                <asp:BoundField HeaderText="Title" DataField="Title" SortExpression="Title"></asp:BoundField>
                <asp:BoundField HeaderText="Price" DataField="Price" SortExpression="Price"></asp:BoundField>
            </Columns>
        </asp:GridView>        
        <asp:XmlDataSource EnableCaching="true" CacheDuration="100" CacheExpirationPolicy="Absolute"
        ID="XmlDataSource1" Runat="server" DataFile="Bookstore.xml"
            XPath="bookstore/genre[@name="Fiction"]/book">
        </asp:XmlDataSource>
    </div>
    </form>
</body>
</html>


<%--
<bookstore>
  <genre name="Fiction">
    <book ISBN="10-861003-324" Title="title 1" Price="19.99">
      <chapter num="1" name="Introduction">
        A
      </chapter>
      <chapter num="2" name="Body">
        B
      </chapter>
      <chapter num="3" name="Conclusion">
        C
      </chapter>
    </book>
    <book ISBN="1-861001-57-5" Title="title " Price="24.95">
      <chapter num="1" name="Introduction">
        D
      </chapter>
      <chapter num="2" name="Body">
        E
      </chapter>
      <chapter num="3" name="Conclusion">
        F
      </chapter>
    </book>   
  </genre>
  <genre name="NonFiction">
    <book ISBN="10-861003-324" Title="title 2" Price="19.99">
      <chapter num="1" name="Introduction">
        G
      </chapter>
      <chapter num="2" name="Body">
        H
      </chapter>
      <chapter num="3" name="Conclusion">
        I
      </chapter>
    </book>   
    <book ISBN="1-861001-57-6" Title="title 3" Price="27.95">
      <chapter num="1" name="Introduction">
        J
      </chapter>
      <chapter num="2" name="Body">
        K
      </chapter>
      <chapter num="3" name="Conclusion">
        L
      </chapter>
    </book>
  </genre>
</bookstore>
--%>

Create asp XmlDataSource

<%--
Code Revised from
       
Professional ASP.NET 2.0 XML (Programmer to Programmer) (Paperback)
by Thiru Thangarathinam 
# Publisher: Wrox (January 18, 2006)
# Language: English
# ISBN: 0764596772
--%>       
                   
       
       
<%@ Page Language="C#" %>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
    <title>Binding XML Data from an XmlDataSource Control</title>
</head>
<body>    
    <form id="form1" runat="server">
    <div>
        <asp:TreeView ID="TreeView1" Runat="server" DataSourceID="XmlDataSource1">
            <DataBindings>
                <asp:TreeNodeBinding ImageUrl="openbook.gif" TextField="Title" DataMember="book"></asp:TreeNodeBinding>
                <asp:TreeNodeBinding ImageUrl="notepad.gif" TextField="name" DataMember="chapter"></asp:TreeNodeBinding>
            </DataBindings>
        </asp:TreeView>    
    </div>
        <div>
            <asp:XmlDataSource ID="XmlDataSource1" Runat="server" DataFile="Bookstore.xml"
                XPath="bookstore/genre[@name="Fiction"]/book">
            </asp:XmlDataSource>
        </div>
    </form>
XPath="bookstore/genre[@name="Fiction"]/book"</body>
</html>

<%-- Bookstore.xml
<bookstore>
  <genre name="Fiction">
    <book ISBN="10-861003-324" Title="title 1" Price="19.99">
      <chapter num="1" name="Introduction">
        A
      </chapter>
      <chapter num="2" name="Body">
        B
      </chapter>
      <chapter num="3" name="Conclusion">
        C
      </chapter>
    </book>
    <book ISBN="1-861001-57-5" Title="title " Price="24.95">
      <chapter num="1" name="Introduction">
        D
      </chapter>
      <chapter num="2" name="Body">
        E
      </chapter>
      <chapter num="3" name="Conclusion">
        F
      </chapter>
    </book>   
  </genre>
  <genre name="NonFiction">
    <book ISBN="10-861003-324" Title="title 2" Price="19.99">
      <chapter num="1" name="Introduction">
        G
      </chapter>
      <chapter num="2" name="Body">
        H
      </chapter>
      <chapter num="3" name="Conclusion">
        I
      </chapter>
    </book>   
    <book ISBN="1-861001-57-6" Title="title 3" Price="27.95">
      <chapter num="1" name="Introduction">
        J
      </chapter>
      <chapter num="2" name="Body">
        K
      </chapter>
      <chapter num="3" name="Conclusion">
        L
      </chapter>
    </book>
  </genre>
</bookstore>
--%>

Enter an XML filename or raw XML starting with

<%@ Page Language="C#" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
<HTML>
  <HEAD>
    <title>Default</title>
    <script runat="server">
  private void LoadButton_Click(object sender, System.EventArgs e) {
    System.IO.Stream xmlDocStream = GetXmlDoc(XmlSourceTextBox.Text);
    System.Xml.XmlDocument xmlSource = new System.Xml.XmlDocument();
    xmlSource.Load(xmlDocStream);
    ResultText.Text=xmlSource.InnerXml;
  }
  public static System.IO.Stream GetXmlDoc(string xmlsource) {
    System.IO.Stream stream=null;
    if(xmlsource.StartsWith("<?xml") || xmlsource.StartsWith("<schema") ) {
        stream = new System.IO.MemoryStream(System.Text.ASCIIEncoding.ASCII.GetBytes(xmlsource));
    } else {
        try {
          System.Uri xmluri = new System.Uri(xmlsource);          
          if(xmluri.IsFile) {
              stream = new System.IO.FileStream(xmlsource, System.IO.FileMode.Open);
          } else {
              System.Net.HttpWebRequest request =  (System.Net.HttpWebRequest) System.Net.WebRequest.Create(xmluri);
              System.Net.WebResponse response = request.GetResponse();      
              stream = response.GetResponseStream();
          }
        }catch(Exception e) {
        }
    }
    return stream;
  }
    </script>
  </HEAD>
  <body>
    <form id="Form1" method="post" runat="server">
      Enter an XML filename or just some raw XML starting with &lt;?xml:<br />
      <asp:textbox id="XmlSourceTextBox" runat="server" Width="377px" Height="162px" TextMode="MultiLine"></asp:textbox><br />
      <asp:button id="LoadButton" runat="server" Text="Load XML Document" OnClick="LoadButton_Click"></asp:button><br />
      <asp:TextBox id="ResultText" runat="server" Width="381px" Height="194px" TextMode="MultiLine"></asp:TextBox>
    </form>
  </body>
</HTML>

Fill XmlDataSource with your code

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="XmlDataSourceNoFile" %>
<!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>Untitled Page</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
    <asp:XmlDataSource ID="sourceDVD" runat="server"  ></asp:XmlDataSource>
        <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataSourceID="sourceDVD">
            <Columns>
                <asp:TemplateField HeaderText="DVD">
                <ItemTemplate>
                <%#XPath("./@ID")%><br />
                  <b><%#XPath("./Title")%></b><br />
                  <%#XPath("./Director")%><br />
                  <%#XPath("./Price", "{0:c}")%><br />
                         </ItemTemplate>
                </asp:TemplateField>
            </Columns>
        </asp:GridView>
    </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;
public partial class XmlDataSourceNoFile : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
     sourceDVD.Data=@"<DvdList>
     <DVD ID="1" Category="category 1">
      <Title>title 1</Title>
      <Director>director 1</Director>
      <Price>1</Price>
      <Starring>
         <Star>star 1</Star>
         <Star>star 2</Star>
      </Starring>
   </DVD>
   </DvdList>";

  }
}

Handling XmlDataSource Events

<%@ Page Language="C#" %>
<%@ Import Namespace="System.Xml.Xsl" %>
<script runat="server">
protected void bookSource_Transforming(object sender, EventArgs e) 
{
  int discountPercentage = 10;  
  XsltArgumentList argList = new XsltArgumentList();
  argList.AddParam("discount", "", discountPercentage.ToString());
  ((XmlDataSource) sender).TransformArgumentList = argList;
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
    <title>Handling XmlDataSource Events</title>
</head>
<body>    
    <form id="form1" runat="server">
    <div>
        <asp:GridView ID="bookView" Runat="server" DataSourceID="bookSource" AutoGenerateColumns="False">
            <Columns>
                <asp:BoundField HeaderText="ISBN" DataField="ISBN" SortExpression="ISBN"></asp:BoundField>
                <asp:BoundField HeaderText="Title" DataField="Title" SortExpression="Title"></asp:BoundField>
                <asp:BoundField HeaderText="Price" DataField="Price" SortExpression="Price"></asp:BoundField>
                <asp:BoundField HeaderText="Discount" DataField="Discount" SortExpression="Discount"></asp:BoundField>
            </Columns>
        </asp:GridView>        
        <asp:XmlDataSource ID="bookSource" Runat="server" DataFile="~/Data.xml"
            XPath="Data/genre[@name ="Fiction"]/book" TransformFile="~/Data_with_parameter.xsl"
            OnTransforming="bookSource_Transforming">            
        </asp:XmlDataSource>&nbsp;
    </div>
    </form>
</body>
</html>
File: ~/Data.xml
<Data>
  <genre name="Fiction">
    <book ISBN="1" Title="title 1" Price="19.99" Discount="1.999">
      <chapter num="1" name="Introduction">
        Abstract...
      </chapter>
      <chapter num="2" name="Body">
        Abstract...
      </chapter>
      <chapter num="3" name="Conclusion">
        Abstract...
      </chapter>
    </book>
  </genre>
  <genre name="NonFiction">
    <book ISBN="2" Title="title 2" Price="27.95" Discount="2.795">
      <chapter num="1" name="Introduction">
        Abstract...
      </chapter>
      <chapter num="2" name="Body">
        Abstract...
      </chapter>
      <chapter num="3" name="Conclusion">
        Abstract...
      </chapter>
    </book>
  </genre>
</Data>
File: ~/Data_with_parameter.xsl
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
  <xsl:param name="discount"/>
  <xsl:template match="Data">
    <Data>
      <xsl:apply-templates select="genre"/>
    </Data>
  </xsl:template>
  <xsl:template match="genre">
    <genre>
      <xsl:attribute name="name">
        <xsl:value-of select="@name"/>
      </xsl:attribute>
      <xsl:apply-templates select="book"/>
    </genre>
  </xsl:template>
  <xsl:template match="book">
    <book>
      <xsl:attribute name="ISBN">
        <xsl:value-of select="@ISBN"/>
      </xsl:attribute>
      <xsl:attribute name="title">
        <xsl:value-of select="@Title"/>
      </xsl:attribute>
      <xsl:attribute name="price">
        <xsl:value-of select="@Price"/>
      </xsl:attribute>
      <xsl:attribute name="discount">
        <xsl:value-of select="$discount * @Price"/>
      </xsl:attribute>
      <xsl:apply-templates select="chapters/chapter" />
    </book>
  </xsl:template>
  <xsl:template match="chapter">
    <chapter>
      <xsl:attribute name="num">
        <xsl:value-of select="@num"/>
      </xsl:attribute>
      <xsl:attribute name="name">
        <xsl:value-of select="@name"/>
      </xsl:attribute>
      <xsl:apply-templates/>
    </chapter>
  </xsl:template>
</xsl:stylesheet>

Programmatically Creating an XmlDataSource Control

<%@ Page Language="C#" %>
<script runat="server">    
protected void Page_Load(object sender, EventArgs e)
{
    XmlDataSource bookSource = new XmlDataSource();
    bookSource.DataFile = "~/Data.xml";
    bookSource.XPath = "Data/genre[@name ="Fiction"]/book";
    bookView.DataSource = bookSource;
    bookView.DataBind();
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title>Programmatically Creating an XmlDataSource Control</title>
</head>
<body>    
  <form id="form1" runat="server">
    <div>
        <asp:GridView ID="bookView" Runat="server" AutoGenerateColumns="False">
            <Columns>
                <asp:BoundField HeaderText="ISBN" DataField="ISBN" SortExpression="ISBN"></asp:BoundField>
                <asp:BoundField HeaderText="Title" DataField="Title" SortExpression="Title"></asp:BoundField>
                <asp:BoundField HeaderText="Price" DataField="Price" SortExpression="Price"></asp:BoundField>
            </Columns>
        </asp:GridView>         
    </div>
  </form>
</body>
</html>
File: ~/Data.xml
<Data>
  <genre name="Fiction">
    <book ISBN="1" Title="title 1" Price="19.99" Discount="1.999">
      <chapter num="1" name="Introduction">
        Abstract...
      </chapter>
      <chapter num="2" name="Body">
        Abstract...
      </chapter>
      <chapter num="3" name="Conclusion">
        Abstract...
      </chapter>
    </book>
  </genre>
  <genre name="NonFiction">
    <book ISBN="2" Title="title 2" Price="27.95" Discount="2.795">
      <chapter num="1" name="Introduction">
        Abstract...
      </chapter>
      <chapter num="2" name="Body">
        Abstract...
      </chapter>
      <chapter num="3" name="Conclusion">
        Abstract...
      </chapter>
    </book>
  </genre>
</Data>

Updating Data through XmlDataSource Control

<%@ Page Language="C#" %>
<%@ Import NameSpace="System.Xml" %>
<script runat="server" >
    void btnDiscount_Click(Object sender, EventArgs e)
    {
        XmlDocument doc = new XmlDocument();
        doc = (XmlDocument)bookSource.GetXmlDocument();
        double discountPercent = Convert.ToInt32(txtDiscountPercent.Text);
        string path = "Data/genre/book";
        XmlNodeList nodeList = doc.SelectNodes(path);
        for(int i=0; i< nodeList.Count ; i++)
        {
            XmlNode node = nodeList[i];
            double price = Convert.ToDouble(node.Attributes["Price"].Value);
            double discount = price * (discountPercent/100);
            XmlAttribute discountAttribute = doc.CreateAttribute("Discount");
            discountAttribute.Value = discount.ToString();
            node.Attributes.Append(discountAttribute);            
        }
        bookSource.Save();
        bookRepeater.DataBind();
    }
</script>
<html>
<head>
    <title>Updating Data through XmlDataSource Control</title>
</head>
<body>
<form id="Form1" runat="server" >
  <asp:XmlDataSource runat="server" ID="bookSource" XPath="Data/genre/book"
    DataFile="~/Data.xml" EnableViewState="True"/>
  <asp:Repeater runat="server" ID="bookRepeater" DataSourceID="bookSource" >
    <ItemTemplate >
        <h2><%# XPath ("@Title") %> </h2>
        <b>ISBN:</b><%# XPath ("@ISBN") %> <%# XPath ("author/last-name/text()") %>        
        <b>Price:</b><%# XPath ("@Price") %>
        <b>Discount:</b><%# XPath ("@Discount") %>
    </ItemTemplate>
  </asp:Repeater>
  <p>
  Enter the discount percentage:<asp:TextBox runat="server" ID="txtDiscountPercent" />
  <asp:Button runat="server" ID="btnAddDiscount" onclick="btnDiscount_Click"
    Text="Add Discount" /></p>
</form>
</body>
</html>
File: ~/Data.xml
<Data>
  <genre name="Fiction">
    <book ISBN="1" Title="title 1" Price="19.99" Discount="1.999">
      <chapter num="1" name="Introduction">
        Abstract...
      </chapter>
      <chapter num="2" name="Body">
        Abstract...
      </chapter>
      <chapter num="3" name="Conclusion">
        Abstract...
      </chapter>
    </book>
  </genre>
  <genre name="NonFiction">
    <book ISBN="2" Title="title 2" Price="27.95" Discount="2.795">
      <chapter num="1" name="Introduction">
        Abstract...
      </chapter>
      <chapter num="2" name="Body">
        Abstract...
      </chapter>
      <chapter num="3" name="Conclusion">
        Abstract...
      </chapter>
    </book>
  </genre>
</Data>

Use ItemTemplate and XPath to display data from XmlDataSource

<%@ Page Language="C#" AutoEventWireup="false" %>
<!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>Untitled Page</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:XmlDataSource ID="sourceDVD" 
                           runat="server" 
                           DataFile="~/Data.xml">
        </asp:XmlDataSource>
        <asp:GridView ID="GridView1" 
                      runat="server" 
                      AutoGenerateColumns="False" 
                      DataSourceID="sourceDVD">
            <Columns>
                <asp:TemplateField HeaderText="DVD">
                <ItemTemplate>
                <%#XPath("./@ID")%><br />
                  <b><%#XPath("./Title")%></b><br />
                  <%#XPath("./Director")%><br />
                  <%#XPath("./Price", "{0:c}")%><br />
                         </ItemTemplate>
                </asp:TemplateField>
            </Columns>
        </asp:GridView>
    
    </div>
    </form>
</body>
</html>
File: Data.xml
<?xml version="1.0"?>
<DvdList>
   <DVD ID="1" Category="Category 1">
      <Title>title 1</Title>
      <Director>directory 2</Director>
      <Price>1</Price>
      <Starring>
         <Star>star 1</Star>
         <Star>star 2</Star>
      </Starring>
   </DVD>
   <DVD ID="2" Category="Category 2">
      <Title>title 2</Title>
      <Director>directory 2</Director>
      <Price>2</Price>
      <Starring>
         <Star>star 3</Star>
         <Star>star 4</Star>
      </Starring>
   </DVD>
</DvdList>

Using Inline XML Data in an XmlDataSource Control

<%@ Page Language="C#" %>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
    <title>Using Inline XML Data in an XmlDataSource Control</title>
</head>
<body>    
    <form id="form1" runat="server">
    <div>
        <asp:TreeView ID="bookView" Runat="server" DataSourceID="bookSource">
            <DataBindings>
                <asp:TreeNodeBinding ImageUrl="~/Images/openbook.gif" TextField="Title" DataMember="book"></asp:TreeNodeBinding>
                <asp:TreeNodeBinding ImageUrl="~/Images/notepad.gif" TextField="name" DataMember="chapter"></asp:TreeNodeBinding>
            </DataBindings>
        </asp:TreeView>    
    </div>
        <div>
            <asp:XmlDataSource ID="bookSource" Runat="server" XPath="Data/book">
                                 
<Data>
  <genre name="Fiction">
    <book ISBN="1" Title="title 1" Price="19.99" Discount="1.999">
      <chapter num="1" name="Introduction">
        Abstract...
      </chapter>
      <chapter num="2" name="Body">
        Abstract...
      </chapter>
      <chapter num="3" name="Conclusion">
        Abstract...
      </chapter>
    </book>
  </genre>

                </Data>
            </asp:XmlDataSource>
        </div>
    </form>
</html>

Using the XmlDataSource control to consume an RSS feed

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<%@ Page Language="C#" %>
<script runat="server">
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>Untitled Page</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:XmlDataSource ID="XmlDataSource1" 
                           Runat="server"
                           DataFile="http://msdn.microsoft.ru/rss.xml"
                           XPath="rss/channel/item">
        </asp:XmlDataSource>
    </div>
    </form>
</body>
</html>

XmlDataSource and XML document

<%@ Page Language="C#" AutoEventWireup="false" %>
<!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>Untitled Page</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:XmlDataSource ID="sourceDVD" 
                           runat="server" 
                           DataFile="~/Data.xml">
        </asp:XmlDataSource>
        <asp:GridView ID="GridView1" 
                      runat="server" 
                      AutoGenerateColumns="False" 
                      DataSourceID="sourceDVD">
            <Columns>
                <asp:BoundField DataField="ID" HeaderText="ID" SortExpression="ID" />
                <asp:BoundField DataField="Category" HeaderText="Category" SortExpression="Category" />
            </Columns>
        </asp:GridView>
    
    </div>
    </form>
</body>
</html>
File: Data.xml
<?xml version="1.0"?>
<DvdList>
   <DVD ID="1" Category="Category 1">
      <Title>title 1</Title>
      <Director>directory 2</Director>
      <Price>1</Price>
      <Starring>
         <Star>star 1</Star>
         <Star>star 2</Star>
      </Starring>
   </DVD>
   <DVD ID="2" Category="Category 2">
      <Title>title 2</Title>
      <Director>directory 2</Director>
      <Price>2</Price>
      <Starring>
         <Star>star 3</Star>
         <Star>star 4</Star>
      </Starring>
   </DVD>
</DvdList>

ASP.Net/XML/XmlDataSource — различия между версиями

Версия 15:30, 26 мая 2010

Содержание

asp:Xml datasource

Binding XML Data from an XmlDataSource Control

Binding XML Data from Other Sources

Caching XML Data in an XmlDataSource Control

Create asp XmlDataSource

Enter an XML filename or raw XML starting with

Fill XmlDataSource with your code

Handling XmlDataSource Events

Programmatically Creating an XmlDataSource Control

Updating Data through XmlDataSource Control

Use ItemTemplate and XPath to display data from XmlDataSource

Using Inline XML Data in an XmlDataSource Control

Using the XmlDataSource control to consume an RSS feed

XmlDataSource and XML document

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Текущая версия на 11:51, 26 мая 2010 (просмотреть исходный код) Admin (обсуждение \| вклад) м (1 версия)	Версия 15:30, 26 мая 2010 (просмотреть исходный код) (обсуждение) Следующая правка →
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