XML参考 :XmlReader 详解、实例(4) 读取XML内容

.NET Framework 类库

XmlReader 类

 

表示提供对 XML 数据进行快速、非缓存、只进访问的读取器,即 对 XML 数据流的只进只读访问。XmlReader 类符合 W3C 可扩展标记语言 (XML) 1.0 和“XML 中的命名空间”建议。

1.实例:读取XML内容

page页面代码:

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="WebApplication1._Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    
<title>Untitled Page</title>
</head>
<body>
    
<form id="form1" runat="server">
    
<div style="400px; border:solid 1px #000; background-color:#8ABBDF;   color:White;">
    
<asp:Label ID="mEmployeesLabel" runat="server" Text=""></asp:Label>
    
</div>
    
</form>
</body>
</html>

2.读取XML内容的代码

protected void Page_Load(object sender, EventArgs e)
       
{
           
string employeeID = "";
           
string xmlFilePath = Request.PhysicalApplicationPath + @"\Employees.xml";
           
try
           
{
               
using (XmlReader reader = XmlReader.Create(xmlFilePath))
               
{
                   
this.mEmployeesLabel.Text = "<b>Employees</b>";
                   
this.mEmployeesLabel.Text += "<ul>";                   

                   
while (reader.Read())
                   
{
                       
if (reader.NodeType == XmlNodeType.Element)
                       
{
                           
if (reader.Name == "employee")
                           
{
                                employeeID 
= reader.GetAttribute("id");
                            }

                           
if (reader.Name == "name")
                           
{
                               
this.mEmployeesLabel.Text += "<li>" + "Employee-" + employeeID;
                               
this.mEmployeesLabel.Text += "<ul>";
                               
this.mEmployeesLabel.Text += "<li>ID-" + employeeID + "</li>";
                            }

                           
if (reader.Name == "firstName")
                           
{
                               
this.mEmployeesLabel.Text += "<li>First Name-" + reader.ReadString() + "</li>";
                            }

                           
if (reader.Name == "lastName")
                           
{
                               
this.mEmployeesLabel.Text += "<li>Last Name-" + reader.ReadString() + "</li>";
                            }

                           
if (reader.Name == "city")
                           
{
                               
this.mEmployeesLabel.Text += "<li>City-" + reader.ReadString() + "</li>";
                            }

                           
if (reader.Name == "state")
                           
{
                               
this.mEmployeesLabel.Text += "<li>state-" + reader.ReadString() + "</li>";
                            }

                           
if (reader.Name == "zipCode")
                           
{
                               
this.mEmployeesLabel.Text += "<li>state-" + reader.ReadElementContentAsInt() + "</li>";
                            }

                        }

                       
else if (reader.NodeType == XmlNodeType.EndElement)
                       
{
                           
if (reader.Name == "employee")
                           
{
                               
this.mEmployeesLabel.Text += "</ul>";
                               
this.mEmployeesLabel.Text += "</li>";
                            }

                        }

                    }

                   
this.mEmployeesLabel.Text += "</ul>";
                }

            }

           
catch (Exception ex)
           
{
               
this.mEmployeesLabel.Text = "An Exception occured:" + ex.Message;
            }

        }

3.效果如下:

原文地址:https://www.cnblogs.com/Dlonghow/p/1254301.html