Csharp/C Sharp by API/System.Xml/XmlReader — различия между версиями
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Admin (обсуждение | вклад) м (1 версия) |
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Текущая версия на 12:11, 26 мая 2010
Содержание
XmlReader.EOF
using System;
using System.Data;
using System.Data.SqlClient;
using System.Xml;
class ExecuteXmlReader {
public static void Main() {
SqlConnection mySqlConnection = new SqlConnection("server=localhost;database=Northwind;uid=sa;pwd=sa");
SqlCommand mySqlCommand = mySqlConnection.CreateCommand();
mySqlCommand.rumandText =
"SELECT TOP 5 ProductID, ProductName, UnitPrice " +
"FROM Products " +
"ORDER BY ProductID " +
"FOR XML AUTO";
mySqlConnection.Open();
XmlReader myXmlReader = mySqlCommand.ExecuteXmlReader();
myXmlReader.Read();
while (!myXmlReader.EOF) {
Console.WriteLine(myXmlReader.ReadOuterXml());
}
myXmlReader.Close();
mySqlConnection.Close();
}
}
XmlReader.Read()
using System;
using System.Data;
using System.Data.SqlClient;
using System.Xml;
class ExecuteXmlReader {
public static void Main() {
SqlConnection mySqlConnection = new SqlConnection("server=localhost;database=Northwind;uid=sa;pwd=sa");
SqlCommand mySqlCommand = mySqlConnection.CreateCommand();
mySqlCommand.rumandText =
"SELECT TOP 5 ProductID, ProductName, UnitPrice " +
"FROM Products " +
"ORDER BY ProductID " +
"FOR XML AUTO";
mySqlConnection.Open();
XmlReader myXmlReader = mySqlCommand.ExecuteXmlReader();
myXmlReader.Read();
while (!myXmlReader.EOF) {
Console.WriteLine(myXmlReader.ReadOuterXml());
}
myXmlReader.Close();
mySqlConnection.Close();
}
}
XmlReader.ReadElementContentAsString
using System;
using System.Collections.Generic;
using System.Text;
using System.Net;
using System.Xml;
using System.IO;
class MainClass
{
static void Main(string[] args)
{
WebClient client = new WebClient();
Stream rssFeedStream = client.OpenRead("http://yourRssFeedURL");
XmlReader reader = XmlReader.Create(rssFeedStream);
reader.MoveToContent();
while (reader.ReadToFollowing("item"))
{
ProcessItem(reader.ReadSubtree());
}
}
static void ProcessItem(XmlReader reader)
{
reader.ReadToFollowing("title");
string title = reader.ReadElementContentAsString("title", reader.NamespaceURI);
reader.ReadToFollowing("link");
string link = reader.ReadElementContentAsString("link", reader.NamespaceURI);
Console.WriteLine("{0}\n\t{1}", title, link);
}
}
XmlReader.ReadOuterXml()
using System;
using System.Data;
using System.Data.SqlClient;
using System.Xml;
class ExecuteXmlReader {
public static void Main() {
SqlConnection mySqlConnection = new SqlConnection("server=localhost;database=Northwind;uid=sa;pwd=sa");
SqlCommand mySqlCommand = mySqlConnection.CreateCommand();
mySqlCommand.rumandText =
"SELECT TOP 5 ProductID, ProductName, UnitPrice " +
"FROM Products " +
"ORDER BY ProductID " +
"FOR XML AUTO";
mySqlConnection.Open();
XmlReader myXmlReader = mySqlCommand.ExecuteXmlReader();
myXmlReader.Read();
while (!myXmlReader.EOF) {
Console.WriteLine(myXmlReader.ReadOuterXml());
}
myXmlReader.Close();
mySqlConnection.Close();
}
}
XmlReader.ReadToFollowing
using System;
using System.Collections.Generic;
using System.Text;
using System.Net;
using System.Xml;
using System.IO;
class MainClass
{
static void Main(string[] args)
{
WebClient client = new WebClient();
Stream rssFeedStream = client.OpenRead("http://yourRssFeedURL");
XmlReader reader = XmlReader.Create(rssFeedStream);
reader.MoveToContent();
while (reader.ReadToFollowing("item"))
{
ProcessItem(reader.ReadSubtree());
}
}
static void ProcessItem(XmlReader reader)
{
reader.ReadToFollowing("title");
string title = reader.ReadElementContentAsString("title", reader.NamespaceURI);
reader.ReadToFollowing("link");
string link = reader.ReadElementContentAsString("link", reader.NamespaceURI);
Console.WriteLine("{0}\n\t{1}", title, link);
}
}