ASP.Net/XML/XML Output — различия между версиями

Материал из .Net Framework эксперт
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м (1 версия)
 
(нет различий)

Версия 18:30, 26 мая 2010

Load XML from string and output to browser

   <source lang="csharp">

<%@ Page Language="C#" %> <%@ Import Namespace="System.Xml" %> <script runat="server"> 

   void Page_Load(object sender, EventArgs e)
   {
       XmlDocument empDoc = new XmlDocument();
       Response.ContentType = "text/xml";
       try
       {
           //Load the XML from a String
           empDoc.LoadXml("<employees>" +
                       "<employee id="1">" +    
                       "<name><firstName>First Name</firstName>" + 
                       "<lastName>Last Name</lastName>" +                       
                       "</name><city>City</city>" +
                       "<state>WA</state><zipCode>99999</zipCode>" +
           "</employee></employees>");    
           //Save the XML data onto a file                    
           empDoc.Save(MapPath("EmployeesNew.xml"));
           Response.Write(empDoc.InnerXml);
       }
       catch (XmlException xmlEx)
       {
           Response.Write("XmlException: " + xmlEx.Message);
       }
       catch (Exception ex)
       {
           Response.Write("Exception: " + ex.Message);
       }        
   }

</script> 


      </source>


Read and format XML data into HTML

   <source lang="csharp">

<%@ Page Language="C#" %> <%@ Import Namespace="System.Xml" %> <script runat="server"> 

   void Page_Load(object sender, EventArgs e)
   {
       //string xmlFilePath = @"C:\Employees.xml";
         string xmlFilePath = MapPath("Employees.xml");
       string employeeID = "";
       try
       {
           using (XmlReader reader = XmlReader.Create(xmlFilePath))
           {
               lblResult.Text = "Employees";
               lblResult.Text += "<ul/>";
               string result;
               while (reader.Read())
               {
                   if (reader.NodeType == XmlNodeType.Element)
                   {
                       if (reader.Name == "employee")
                       {
                           employeeID = reader.GetAttribute("id");
                       }
                       if (reader.Name == "name")
                       {
lblResult.Text += "
  • " + "Employee - " + employeeID; lblResult.Text += "
      "; lblResult.Text += "
    • ID - " + employeeID + "
      • "; 
                             }
                       if (reader.Name == "firstName")
                       {
      lblResult.Text += "
    • First Name - " + reader.ReadString() + "
      • "; 
                             }
                       if (reader.Name == "lastName")
                       {
      lblResult.Text += "
    • Last Name - " + reader.ReadString() + "
      • "; 
                             }
                       if (reader.Name == "city")
                       {
      lblResult.Text += "
    • City - " + reader.ReadString() + "
      • "; 
                             }
                       if (reader.Name == "state")
                       {
      lblResult.Text += "
    • State - " + reader.ReadString() + "
      • "; 
                             }
                       if (reader.Name == "zipCode")
                       {
      lblResult.Text += "
    • Zipcode - " + reader.ReadElementContentAsInt().ToString() + "
      • "; 
                             }
                   }
                   else if (reader.NodeType == XmlNodeType.EndElement)
                   {
                       if (reader.Name == "employee")
                       {
                           //Close the open formatting tags
      lblResult.Text += "
    "; lblResult.Text += "
    • "; 
                           }
                   }
               }
               lblResult.Text += "</ul>";
           }
       }
       catch (Exception ex)
       {
           lblResult.Text = "An Exception occurred: " + ex.Message;
       }
   }

    </script> <html xmlns="http://www.w3.org/1999/xhtml" > <head runat="server"> 

       <title>Processing the Data in an XML File</title>

    </head> <body> 

       <form id="form1" runat="server">

           <asp:label id="lblResult" runat="server" />

       </form>

    </body> </html> <%-- <?xml version="1.0"?> <employees> 

     <employee id="1">    
   <name>
     <firstName>Nancy</firstName>
     <lastName>Lee</lastName> 
   </name>
   <city>Seattle</city>
   <state>WA</state>
   <zipCode>98122</zipCode>   
 </employee>
 <employee id="2">    
   <name>
     <firstName>Jason</firstName>
     <lastName>Wang</lastName>
   </name>
   <city>Vancouver</city>
   <state>WA</state>
   <zipCode>98123</zipCode>   
 </employee>

    </employees> --%> 

          </source>


    Read XML file and output to client

       <source lang="csharp">

    <%@ Page Language="C#"%> <%@ Import Namespace="System.Xml" %> <%@ Import Namespace="System.Xml.Schema" %> <script runat="server"> 

       void Page_Load(object sender, EventArgs e)
   {
       Response.ContentType = "text/xml";
       string xmlPath = MapPath("Authors.xml");            
       XmlReader reader = XmlReader.Create(xmlPath);
       XmlSchemaSet schemaSet = new XmlSchemaSet();
       XmlSchemaInference schema = new XmlSchemaInference();
       schemaSet = schema.InferSchema(reader);
       foreach (XmlSchema schemaObj in schemaSet.Schemas())
       {
           schemaObj.Write(Response.Output);
       }      
   }

    </script>

    <%-- <?xml version="1.0"?> <authors> 

     <author>
   <authorID>000-00-0001</authorID>
   <lastName>Nancy</lastName>
   <firstName>Lee</firstName>
   <phone>999 999-9999</phone>
   <address>9999 York St.</address>
   <city>Regina</city>
   <state>LA</state>
   <zip>99999</zip>
   <contract>true</contract>
 </author>
 <author>
   <authorID>000-00-0002</authorID>
   <lastName>First</lastName>
   <firstName>Last</firstName>
   <phone>415 986-7020</phone>
   <address>No Name St.</address>
   <city>Vancouver</city>
   <state>BC</state>
   <zip>88888</zip>
   <contract>true</contract>
 </author>

    </authors>

    --%> 

          </source>


    Use XmlDocument (DOM) to load xml file and output to browser

       <source lang="csharp">

    <%@ Page Language="C#" %> <%@ Import Namespace="System.Xml" %> <script runat="server"> 

       void Page_Load(object sender, EventArgs e)
   {
       string xmlPath = MapPath("Authors.xml");
       XmlDocument booksDoc = new XmlDocument();
       Response.ContentType = "text/xml";
       try
       {
           booksDoc.PreserveWhitespace = true;
           booksDoc.Load(xmlPath);
           //Write the XML onto the browser
           Response.Write(booksDoc.InnerXml);
       }
       catch (XmlException xmlEx)
       {
           Response.Write("XmlException: " + xmlEx.Message);
       }
       catch (Exception ex)
       {
           Response.Write("Exception: " + ex.Message);
       }        
   }

    </script>

    <%-- <?xml version="1.0"?> <authors> 

     <author>
   <authorID>000-00-0001</authorID>
   <lastName>Nancy</lastName>
   <firstName>Lee</firstName>
   <phone>999 999-9999</phone>
   <address>9999 York St.</address>
   <city>Regina</city>
   <state>LA</state>
   <zip>99999</zip>
   <contract>true</contract>
 </author>
 <author>
   <authorID>000-00-0002</authorID>
   <lastName>First</lastName>
   <firstName>Last</firstName>
   <phone>415 986-7020</phone>
   <address>No Name St.</address>
   <city>Vancouver</city>
   <state>BC</state>
   <zip>88888</zip>
   <contract>true</contract>
 </author>

    </authors> --%> 


          </source>
    Источник — «http://nfex.ru/index.php?title=ASP.Net/XML/XML_Output&oldid=1880»