关键词：
调用API实现,最好是不用控件,需要源程序!急
总共就这么多分,希望高手能帮忙!谢谢
通常，在C#中实现串口通信，我们有四种方法：
第一：通过MSCOMM控件这是最简单的，最方便的方法。可功能上很难做到控制自如，同时这个控件并不是系统本身所带，所以还得注册。可以访问
http://www.devhood.com/tutorials/tutorial_details.aspx?tutorial_id=320
一个外国人写的教程
第二：微软在.NET新推出了一个串口控件，基于.NET的P/Invoke调用方法实现，详细的可以访问微软网站
Serial Comm
Use P/Invoke to Develop a .NET Base Class Library for Serial Device Communications
http://msdn.microsoft.com/msdnmag/issues/02/10/netserialcomm/
第三：就是用第三方控件啦，可一般都要付费的，不太合实际，何况楼主不喜欢，不作考虑
第四：自己用API写串口通信，这样难度高点，但对于我们来说，可以方便实现自己想要的各种功能。
我们采用第四种方法来实现串口通信，用现成的已经封装好的类库，常见两个串口操作类是JustinIO和SerialStreamReader。介绍JustinIO的使用方法：
打开串口：
函数原型：public void Open()
说明：打开事先设置好的端口
示例：
using JustinIO;
static JustinIO.CommPort ss_port = new JustinIO.CommPort();
ss_port.PortNum = COM1; //端口号
ss_port.BaudRate = 19200; //串口通信波特率
ss_port.ByteSize = 8; //数据位
ss_port.Parity = 0; //奇偶校验
ss_port.StopBits = 1;//停止位
ss_port.ReadTimeout = 1000; //读超时
try
if (ss_port.Opened)
ss_port.Close();
ss_port.Open(); //打开串口
else
ss_port.Open();//打开串口
return true;
catch(Exception e)
MessageBox.Show("错误：" + e.Message);
return false;
写串口：
函数原型：public void Write(byte[] WriteBytes)
WriteBytes 就是你的写入的字节，注意，字符串要转换成字节数组才能进行通信
示例：
ss_port.Write(Encoding.ASCII.GetBytes("AT+CGMI\r")); //获取手机品牌
读串口：
函数原型：public byte[] Read(int NumBytes)
NumBytes 读入缓存数，注意读取来的是字节数组，要实际应用中要进行字符转换
示例：
string response = Encoding.ASCII.GetString(ss_port.Read(128)); //读取128个字节缓存
关闭串口：
函数原型：ss_port.Close()
示例：
ss_port.Close();
整合代码：
using System;
using System.Runtime.InteropServices;
namespace JustinIO
class CommPort
public int PortNum;
public int BaudRate;
public byte ByteSize;
public byte Parity; // 0-4=no,odd,even,mark,space
public byte StopBits; // 0,1,2 = 1, 1.5, 2
public int ReadTimeout;
//comm port win32 file handle
private int hComm = -1;
public bool Opened = false;
//win32 api constants
private const uint GENERIC_READ = 0x80000000;
private const uint GENERIC_WRITE = 0x40000000;
private const int OPEN_EXISTING = 3;
private const int INVALID_HANDLE_VALUE = -1;
[StructLayout(LayoutKind.Sequential)]
public struct DCB
//taken from c struct in platform sdk
public int DCBlength; // sizeof(DCB)
public int BaudRate; // current baud rate
/* these are the c struct bit fields, bit twiddle flag to set
public int fBinary; // binary mode, no EOF check
public int fParity; // enable parity checking
public int fOutxCtsFlow; // CTS output flow control
public int fOutxDsrFlow; // DSR output flow control
public int fDtrControl; // DTR flow control type
public int fDsrSensitivity; // DSR sensitivity
public int fTXContinueOnXoff; // XOFF continues Tx
public int fOutX; // XON/XOFF out flow control
public int fInX; // XON/XOFF in flow control
public int fErrorChar; // enable error replacement
public int fNull; // enable null stripping
public int fRtsControl; // RTS flow control
public int fAbortOnError; // abort on error
public int fDummy2; // reserved
*/
public uint flags;
public ushort wReserved; // not currently used
public ushort XonLim; // transmit XON threshold
public ushort XoffLim; // transmit XOFF threshold
public byte ByteSize; // number of bits/byte, 4-8
public byte Parity; // 0-4=no,odd,even,mark,space
public byte StopBits; // 0,1,2 = 1, 1.5, 2
public char XonChar; // Tx and Rx XON character
public char XoffChar; // Tx and Rx XOFF character
public char ErrorChar; // error replacement character
public char EofChar; // end of input character
public char EvtChar; // received event character
public ushort wReserved1; // reserved; do not use
[StructLayout(LayoutKind.Sequential)]
private struct COMMTIMEOUTS
public int ReadIntervalTimeout;
public int ReadTotalTimeoutMultiplier;
public int ReadTotalTimeoutConstant;
public int WriteTotalTimeoutMultiplier;
public int WriteTotalTimeoutConstant;
[StructLayout(LayoutKind.Sequential)]
private struct OVERLAPPED
public int Internal;
public int InternalHigh;
public int Offset;
public int OffsetHigh;
public int hEvent;
[DllImport("kernel32.dll")]
private static extern int CreateFile(
string lpFileName, // file name
uint dwDesiredAccess, // access mode
int dwShareMode, // share mode
int lpSecurityAttributes, // SD
int dwCreationDisposition, // how to create
int dwFlagsAndAttributes, // file attributes
int hTemplateFile // handle to template file
);
[DllImport("kernel32.dll")]
private static extern bool GetCommState(
int hFile, // handle to communications device
ref DCB lpDCB // device-control block
);
[DllImport("kernel32.dll")]
private static extern bool BuildCommDCB(
string lpDef, // device-control string
ref DCB lpDCB // device-control block
);
[DllImport("kernel32.dll")]
private static extern bool SetCommState(
int hFile, // handle to communications device
ref DCB lpDCB // device-control block
);
[DllImport("kernel32.dll")]
private static extern bool GetCommTimeouts(
int hFile, // handle to comm device
ref COMMTIMEOUTS lpCommTimeouts // time-out values
);
[DllImport("kernel32.dll")]
private static extern bool SetCommTimeouts(
int hFile, // handle to comm device
ref COMMTIMEOUTS lpCommTimeouts // time-out values
);
[DllImport("kernel32.dll")]
private static extern bool ReadFile(
int hFile, // handle to file
byte[] lpBuffer, // data buffer
int nNumberOfBytesToRead, // number of bytes to read
ref int lpNumberOfBytesRead, // number of bytes read
ref OVERLAPPED lpOverlapped // overlapped buffer
);
[DllImport("kernel32.dll")]
private static extern bool WriteFile(
int hFile, // handle to file
byte[] lpBuffer, // data buffer
int nNumberOfBytesToWrite, // number of bytes to write
ref int lpNumberOfBytesWritten, // number of bytes written
ref OVERLAPPED lpOverlapped // overlapped buffer
);
[DllImport("kernel32.dll")]
private static extern bool CloseHandle(
int hObject // handle to object
);
[DllImport("kernel32.dll")]
private static extern uint GetLastError();
public void Open()
DCB dcbCommPort = new DCB();
COMMTIMEOUTS ctoCommPort = new COMMTIMEOUTS();
// OPEN THE COMM PORT.
hComm = CreateFile("COM" + PortNum ,GENERIC_READ | GENERIC_WRITE,0, 0,OPEN_EXISTING,0,0);
// IF THE PORT CANNOT BE OPENED, BAIL OUT.
if(hComm == INVALID_HANDLE_VALUE)
throw(new ApplicationException("Comm Port Can Not Be Opened"));
// SET THE COMM TIMEOUTS.
GetCommTimeouts(hComm,ref ctoCommPort);
ctoCommPort.ReadTotalTimeoutConstant = ReadTimeout;
ctoCommPort.ReadTotalTimeoutMultiplier = 0;
ctoCommPort.WriteTotalTimeoutMultiplier = 0;
ctoCommPort.WriteTotalTimeoutConstant = 0;
SetCommTimeouts(hComm,ref ctoCommPort);
// SET BAUD RATE, PARITY, WORD SIZE, AND STOP BITS.
GetCommState(hComm, ref dcbCommPort);
dcbCommPort.BaudRate=BaudRate;
dcbCommPort.flags=0;
//dcb.fBinary=1;
dcbCommPort.flags|=1;
if (Parity>0)
//dcb.fParity=1
dcbCommPort.flags|=2;
dcbCommPort.Parity=Parity;
dcbCommPort.ByteSize=ByteSize;
dcbCommPort.StopBits=StopBits;
if (!SetCommState(hComm, ref dcbCommPort))
//uint ErrorNum=GetLastError();
throw(new ApplicationException("Comm Port Can Not Be Opened"));
//unremark to see if setting took correctly
//DCB dcbCommPort2 = new DCB();
//GetCommState(hComm, ref dcbCommPort2);
Opened = true;
public void Close()
if (hComm!=INVALID_HANDLE_VALUE)
CloseHandle(hComm);
public byte[] Read(int NumBytes)
byte[] BufBytes;
byte[] OutBytes;
BufBytes = new byte[NumBytes];
if (hComm!=INVALID_HANDLE_VALUE)
OVERLAPPED ovlCommPort = new OVERLAPPED();
int BytesRead=0;
ReadFile(hComm,BufBytes,NumBytes,ref BytesRead,ref ovlCommPort);
OutBytes = new byte[BytesRead];
Array.Copy(BufBytes,OutBytes,BytesRead);
else
throw(new ApplicationException("Comm Port Not Open"));
return OutBytes;
public void Write(byte[] WriteBytes)
if (hComm!=INVALID_HANDLE_VALUE)
OVERLAPPED ovlCommPort = new OVERLAPPED();
int BytesWritten = 0;
WriteFile(hComm,WriteBytes,WriteBytes.Length,ref BytesWritten,ref ovlCommPort);
else
throw(new ApplicationException("Comm Port Not Open"));
由于篇幅，以及串口通信涉及内容广泛，我在这里只讲这些。 参考技术A //
//bool XmlTextReader.Read(): 读取流中下一个节点，当读完最后一个节点再次调用该方法该方法返回false
//XmlNodeType XmlTextReader.NodeType: 该属性返回当前节点的类型
// XmlNodeType.Element 元素节点
// XmlNodeType.EndElement 结尾元素节点
// XmlNodeType.XmlDeclaration 文档的第一个节点
// XmlNodeType.Text 文本节点
//bool XmlTextReader.HasAttributes: 当前节点有没有属性，返回true或false
//string XmlTextReader.Name: 返回当前节点的名称
//string XmlTextReader.Value: 返回当前节点的值
//string XmlTextReader.LocalName: 返回当前节点的本地名称
//string XmlTextReader.NamespaceURI: 返回当前节点的命名空间URI
//string XmlTextReader.Prefix: 返回当前节点的前缀
//bool XmlTextReader.MoveToNextAttribute(): 移动到当前节点的下一个属性
//---------------------------------------------------------------------------------------------------
namespace XMLReading
using System;
using System.Xml;
using System.Windows.Forms;
using System.ComponentModel;
/// ＜summary＞
/// Xml文件读取器
/// ＜/summary＞
public class XmlReader : IDisposable
private string _xmlPath;
private const string _errMsg = "Error Occurred While Reading ";
private ListBox _listBox;
private XmlTextReader xmlTxtRd;
#region XmlReader 的构造器
public XmlReader()
this._xmlPath = string.Empty;
this._listBox = null;
this.xmlTxtRd = null;
/// ＜summary＞
/// 构造器
/// ＜/summary＞
/// ＜param name="_xmlPath"＞xml文件绝对路径＜/param＞
/// ＜param name="_listBox"＞列表框用于显示xml＜/param＞
public XmlReader(string _xmlPath, ListBox _listBox)
this._xmlPath = _xmlPath;
this._listBox = _listBox;
this.xmlTxtRd = null;
#endregion
#region XmlReader 的资源释放方法
/// ＜summary＞
/// 清理该对象所有正在使用的资源
/// ＜/summary＞
public void Dispose()
this.Dispose(true);
GC.SuppressFinalize(this);
/// ＜summary＞
/// 释放该对象的实例变量
/// ＜/summary＞
/// ＜param name="disposing"＞＜/param＞
protected virtual void Dispose(bool disposing)
if (!disposing)
return;
if (this.xmlTxtRd != null)
this.xmlTxtRd.Close();
this.xmlTxtRd = null;
if (this._xmlPath != null)
this._xmlPath = null;
#endregion
#region XmlReader 的属性
/// ＜summary＞
/// 获取或设置列表框用于显示xml
/// ＜/summary＞
public ListBox listBox
get
return this._listBox;
set
this._listBox = value;
/// ＜summary＞
/// 获取或设置xml文件的绝对路径
/// ＜/summary＞
public string xmlPath
get
return this._xmlPath;
set
this._xmlPath = value;
#endregion
/// ＜summary＞
/// 遍历Xml文件
/// ＜/summary＞
public void EachXml()
this._listBox.Items.Clear();
this.xmlTxtRd = new XmlTextReader(this._xmlPath);
try
while(xmlTxtRd.Read())
this._listBox.Items.Add(this.xmlTxtRd.Value);
catch(XmlException exp)
throw new XmlException(_errMsg + this._xmlPath + exp.ToString());
finally
if (this.xmlTxtRd != null)
this.xmlTxtRd.Close();
/// ＜summary＞
/// 读取Xml文件的节点类型
/// ＜/summary＞
public void ReadXmlByNodeType()
this._listBox.Items.Clear();
this.xmlTxtRd = new XmlTextReader(this._xmlPath);
try
while(xmlTxtRd.Read())
this._listBox.Items.Add(this.xmlTxtRd.NodeType.ToString());
catch(XmlException exp)
throw new XmlException(_errMsg + this._xmlPath + exp.ToString());
finally
if (this.xmlTxtRd != null)
this.xmlTxtRd.Close();
/// ＜summary＞
/// 根据节点类型过滤Xml文档
/// ＜/summary＞
/// ＜param name="xmlNType"＞XmlNodeType 节点类型的数组＜/param＞
public void FilterByNodeType(XmlNodeType[] xmlNType)
this._listBox.Items.Clear();
this.xmlTxtRd = new XmlTextReader(this._xmlPath);
try
while(xmlTxtRd.Read())
for (int i = 0; i ＜ xmlNType.Length; i++)
if (xmlTxtRd.NodeType == xmlNType[i])
this._listBox.Items.Add(xmlTxtRd.Name + " is Type " + xmlTxtRd.NodeType.ToString());
catch(XmlException exp)
throw new XmlException(_errMsg + this.xmlPath + exp.ToString());
finally
if (this.xmlTxtRd != null)
this.xmlTxtRd.Close();
/// ＜summary＞
/// 读取Xml文件的所有文本节点值
/// ＜/summary＞
public void ReadXmlTextValue()
this._listBox.Items.Clear();
this.xmlTxtRd = new XmlTextReader(this._xmlPath);
try
while(xmlTxtRd.Read())
if (xmlTxtRd.NodeType == XmlNodeType.Text)
this._listBox.Items.Add(xmlTxtRd.Value);
catch(XmlException xmlExp)
throw new XmlException(_errMsg + this._xmlPath + xmlExp.ToString());
finally
if (this.xmlTxtRd != null)
this.xmlTxtRd.Close();
/// ＜summary＞
/// 读取Xml文件的属性
/// ＜/summary＞
public void ReadXmlAttributes()
this._listBox.Items.Clear();
this.xmlTxtRd = new XmlTextReader(this._xmlPath);
try
while(xmlTxtRd.Read())
if (xmlTxtRd.NodeType == XmlNodeType.Element)
if (xmlTxtRd.HasAttributes)
this._listBox.Items.Add("The Element " + xmlTxtRd.Name + " has " + xmlTxtRd.AttributeCount + " Attributes");
this._listBox.Items.Add("The Attributes are:");
while(xmlTxtRd.MoveToNextAttribute())
this._listBox.Items.Add(xmlTxtRd.Name + " = " + xmlTxtRd.Value);
else
this._listBox.Items.Add("The Element " + xmlTxtRd.Name + " has no Attribute");
this._listBox.Items.Add("");
catch(XmlException xmlExp)
throw new XmlException(_errMsg + this._xmlPath + xmlExp.ToString());
finally
if (this.xmlTxtRd != null)
this.xmlTxtRd.Close();
/// ＜summary＞
/// 读取Xml文件的命名空间
/// ＜/summary＞
public void ReadXmlNamespace()
this._listBox.Items.Clear();
this.xmlTxtRd = new XmlTextReader(this._xmlPath);
try
while(xmlTxtRd.Read())
if (xmlTxtRd.NodeType == XmlNodeType.Element && xmlTxtRd.Prefix != "")
this._listBox.Items.Add("The Prefix " + xmlTxtRd.Prefix + " is associated with namespace " + xmlTxtRd.NamespaceURI);
this._listBox.Items.Add("The Element with the local name " + xmlTxtRd.LocalName + " is associated with" + " the namespace " + xmlTxtRd.NamespaceURI);
if (xmlTxtRd.NodeType == XmlNodeType.Element && xmlTxtRd.HasAttributes)
while(xmlTxtRd.MoveToNextAttribute())
if (xmlTxtRd.Prefix != "")
this._listBox.Items.Add("The Prefix " + xmlTxtRd.Prefix + " is associated with namespace " + xmlTxtRd.NamespaceURI);
this._listBox.Items.Add("The Attribute with the local name " + xmlTxtRd.LocalName + " is associated with the namespace " + xmlTxtRd.NamespaceURI);
catch(XmlException xmlExp)
throw new XmlException(_errMsg + this._xmlPath + xmlExp.ToString());
finally
if (this.xmlTxtRd != null)
this.xmlTxtRd.Close();
/// ＜summary＞
/// 读取整个Xml文件
/// ＜/summary＞
public void ReadXml()
string attAndEle = string.Empty;
this._listBox.Items.Clear();
this.xmlTxtRd = new XmlTextReader(this._xmlPath);
try
while(xmlTxtRd.Read())
if (xmlTxtRd.NodeType == XmlNodeType.XmlDeclaration)
this._listBox.Items.Add(string.Format("＜?0 1 ?＞",xmlTxtRd.Name,xmlTxtRd.Value));
else if (xmlTxtRd.NodeType == XmlNodeType.Element)
attAndEle = string.Format("＜0 ",xmlTxtRd.Name);
if (xmlTxtRd.HasAttributes)
while(xmlTxtRd.MoveToNextAttribute())
attAndEle = attAndEle + string.Format("0='1' ",xmlTxtRd.Name,xmlTxtRd.Value);
attAndEle = attAndEle.Trim() + "＞";
this._listBox.Items.Add(attAndEle);
else if (xmlTxtRd.NodeType == XmlNodeType.EndElement)
this._listBox.Items.Add(string.Format("＜/0＞",xmlTxtRd.Name));
else if (xmlTxtRd.NodeType == XmlNodeType.Text)
this._listBox.Items.Add(xmlTxtRd.Value);
catch(XmlException xmlExp)
throw new XmlException(_errMsg + this._xmlPath + xmlExp.ToString());
finally
if (this.xmlTxtRd != null)
this.xmlTxtRd.Close();
窗体代码如下：
namespace XMLReading
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Xml;
public class Form1 : System.Windows.Forms.Form
private System.Windows.Forms.ListBox listBox1;
private System.Windows.Forms.Button button1;
private System.Windows.Forms.Button button2;
private System.Windows.Forms.Button button3;
private System.Windows.Forms.Button button4;
private System.Windows.Forms.Button button5;
private System.Windows.Forms.Button button6;
private System.Windows.Forms.Button button7;
private string xmlPath;
private XmlReader xRead;
/// ＜summary＞
/// 必需的设计器变量。
/// ＜/summary＞
private System.ComponentModel.Container components = null;
public Form1()
InitializeComponent();
/// ＜summary＞
/// 清理所有正在使用的资源。
/// ＜/summary＞
protected override void Dispose( bool disposing )
if( disposing )
if (components != null)
components.Dispose();
base.Dispose( disposing );
#region Windows 窗体设计器生成的代码
/// ＜summary＞
/// 设计器支持所需的方法 - 不要使用代码编辑器修改
/// 此方法的内容。
/// ＜/summary＞
private void InitializeComponent()
this.listBox1 = new System.Windows.Forms.ListBox();
this.button1 = new System.Windows.Forms.Button();
this.button2 = new System.Windows.Forms.Button();
this.button3 = new System.Windows.Forms.Button();
this.button4 = new System.Windows.Forms.Button();
this.button5 = new System.Windows.Forms.Button();
this.button6 = new System.Windows.Forms.Button();
this.button7 = new System.Windows.Forms.Button();
this.SuspendLayout();
//
// listBox1
//
this.listBox1.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom)
| System.Windows.Forms.AnchorStyles.Left)
| System.Windows.Forms.AnchorStyles.Right)));
this.listBox1.ItemHeight = 12;
this.listBox1.Location = new System.Drawing.Point(8, 8);
this.listBox1.Name = "listBox1";
this.listBox1.Size = new System.Drawing.Size(716, 460);
this.listBox1.TabIndex = 0;
//
// button1
//
this.button1.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
this.button1.Location = new System.Drawing.Point(8, 488);
this.button1.Name = "button1";
this.button1.TabIndex = 1;
this.button1.Text = "Example1";
this.button1.Click += new System.EventHandler(this.button1_Click);
//
// button2
//
this.button2.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
this.button2.Location = new System.Drawing.Point(96, 488);
this.button2.Name = "button2";
this.button2.TabIndex = 2;
this.button2.Text = "Example2";
this.button2.Click += new System.EventHandler(this.button2_Click);
//
// button3
//
this.button3.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));
this.button3.Location = new System.Drawing.Point(648, 488);
this.button3.Name = "button3";
this.button3.TabIndex = 3;
this.button3.Text = "Example7";
this.button3.Click += new System.EventHandler(this.button3_Click);
//
// button4
//
this.button4.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
this.button4.Location = new System.Drawing.Point(184, 488);
this.button4.Name = "button4";
this.button4.TabIndex = 4;
this.button4.Text = "Example3";
this.button4.Click += new System.EventHandler(this.button4_Click);
//
// button5
//
this.button5.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
this.button5.Location = new System.Drawing.Point(272, 488);
this.button5.Name = "button5";
this.button5.TabIndex = 5;
this.button5.Text = "Example4";
this.button5.Click += new System.EventHandler(this.button5_Click);
//
// button6
//
this.button6.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
this.button6.Location = new System.Drawing.Point(360, 488);
this.button6.Name = "button6";
this.button6.TabIndex = 6;
this.button6.Text = "Example5";
this.button6.Click += new System.EventHandler(this.button6_Click);
//
// button7
//
this.button7.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
this.button7.Location = new System.Drawing.Point(448, 488);
this.button7.Name = "button7";
this.button7.TabIndex = 7;
this.button7.Text = "Example6";
this.button7.Click += new System.EventHandler(this.button7_Click);
//
// Form1
//
this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
this.ClientSize = new System.Drawing.Size(728, 517);
this.Controls.Add(this.button7);
this.Controls.Add(this.button6);
this.Controls.Add(this.button5);
this.Controls.Add(this.button4);
this.Controls.Add(this.button3);
this.Controls.Add(this.button2);
this.Controls.Add(this.button1);
this.Controls.Add(this.listBox1);
this.Name = "Form1";
this.Text = "XMLReader";
this.ResumeLayout(false);
//
// xmlPath
//
this.xmlPath = "sample.xml";
#endregion
/// ＜summary＞
/// 应用程序的主入口点。
/// ＜/summary＞
[STAThread]
static void Main()
Application.Run(new Form1());
private void button1_Click(object sender, System.EventArgs e)
xRead = new XmlReader(this.xmlPath,this.listBox1);
try
xRead.EachXml();
catch(XmlException xmlExp)
MessageBox.Show(xmlExp.ToString(),"Error",MessageBoxButtons.OK,MessageBoxIcon.Error);
catch(Exception exp)
MessageBox.Show(exp.ToString(),"Error",MessageBoxButtons.OK,MessageBoxIcon.Error);
finally
xRead.Dispose();
private void button2_Click(object sender, System.EventArgs e)
xRead = new XmlReader(this.xmlPath,this.listBox1);
try
xRead.ReadXmlByNodeType();
catch(XmlException xmlExp)
MessageBox.Show(xmlExp.ToString(),"Error",MessageBoxButtons.OK,MessageBoxIcon.Error);
catch(Exception exp)
MessageBox.Show(exp.ToString(),"Error",MessageBoxButtons.OK,MessageBoxIcon.Error);
finally
xRead.Dispose();
private void button3_Click(object sender, System.EventArgs e)
XmlNodeType[] xmlNType = XmlNodeType.Element, XmlNodeType.EndElement, XmlNodeType.XmlDeclaration;
xRead = new XmlReader(this.xmlPath, this.listBox1);
try
xRead.FilterByNodeType(xmlNType);
catch(XmlException xmlExp)
MessageBox.Show(xmlExp.ToString(),"Error",MessageBoxButtons.OK,MessageBoxIcon.Error);
catch(Exception exp)
MessageBox.Show(exp.ToString(),"Error",MessageBoxButtons.OK,MessageBoxIcon.Error);
finally
xRead.Dispose();
private void button4_Click(object sender, System.EventArgs e)
xRead = new XmlReader(this.xmlPath, this.listBox1);
try
xRead.ReadXmlTextValue();
catch(XmlException xmlExp)
MessageBox.Show(xmlExp.ToString(),"Error",MessageBoxButtons.OK,MessageBoxIcon.Error);
catch(Exception exp)
MessageBox.Show(exp.ToString(),"Error",MessageBoxButtons.OK,MessageBoxIcon.Error);
finally
xRead.Dispose();
private void button5_Click(object sender, System.EventArgs e)
xRead = new XmlReader(this.xmlPath, this.listBox1);
try
xRead.ReadXmlAttributes();
catch(XmlException xmlExp)
MessageBox.Show(xmlExp.ToString(),"Error",MessageBoxButtons.OK,MessageBoxIcon.Error);
catch(Exception exp)
MessageBox.Show(exp.ToString(),"Error",MessageBoxButtons.OK,MessageBoxIcon.Error);
finally
xRead.Dispose();
private void button6_Click(object sender, System.EventArgs e)
xRead = new XmlReader(this.xmlPath, this.listBox1);
try
xRead.ReadXmlNamespace();
catch(XmlException xmlExp)
MessageBox.Show(xmlExp.ToString(),"Error",MessageBoxButtons.OK,MessageBoxIcon.Error);
catch(Exception exp)
MessageBox.Show(exp.ToString(),"Error",MessageBoxButtons.OK,MessageBoxIcon.Error);
finally
xRead.Dispose();
private void button7_Click(object sender, System.EventArgs e)
xRead = new XmlReader(this.xmlPath, this.listBox1);
try
xRead.ReadXml();
catch(XmlException xmlExp)
MessageBox.Show(xmlExp.ToString(),"Error",MessageBoxButtons.OK,MessageBoxIcon.Error);
catch(Exception exp)
MessageBox.Show(exp.ToString(),"Error",MessageBoxButtons.OK,MessageBoxIcon.Error);
finally
xRead.Dispose();
参考技术B //
//bool XmlTextReader.Read(): 读取流中下一个节点，当读完最后一个节点再次调用该方法该方法返回false
//XmlNodeType XmlTextReader.NodeType: 该属性返回当前节点的类型
// XmlNodeType.Element 元素节点
// XmlNodeType.EndElement 结尾元素节点
// XmlNodeType.XmlDeclaration 文档的第一个节点
// XmlNodeType.Text 文本节点
//bool XmlTextReader.HasAttributes: 当前节点有没有属性，返回true或false
//string XmlTextReader.Name: 返回当前节点的名称
//string XmlTextReader.Value: 返回当前节点的值
//string XmlTextReader.LocalName: 返回当前节点的本地名称
//string XmlTextReader.NamespaceURI: 返回当前节点的命名空间URI
//string XmlTextReader.Prefix: 返回当前节点的前缀
//bool XmlTextReader.MoveToNextAttribute(): 移动到当前节点的下一个属性
//---------------------------------------------------------------------------------------------------
namespace XMLReading
using System;
using System.Xml;
using System.Windows.Forms;
using System.ComponentModel;
/// ＜summary＞
/// Xml文件读取器
/// ＜/summary＞
public class XmlReader : IDisposable
private string _xmlPath;
private const string _errMsg = "Error Occurred While Reading ";
private ListBox _listBox;
private XmlTextReader xmlTxtRd;
#region XmlReader 的构造器
public XmlReader()
this._xmlPath = string.Empty;
this._listBox = null;
this.xmlTxtRd = null;
/// ＜summary＞
/// 构造器
/// ＜/summary＞
/// ＜param name="_xmlPath"＞xml文件绝对路径＜/param＞
/// ＜param name="_listBox"＞列表框用于显示xml＜/param＞
public XmlReader(string _xmlPath, ListBox _listBox)
this._xmlPath = _xmlPath;
this._listBox = _listBox;
this.xmlTxtRd = null;
#endregion
#region XmlReader 的资源释放方法
/// ＜summary＞
/// 清理该对象所有正在使用的资源
/// ＜/summary＞
public void Dispose()
this.Dispose(true);
GC.SuppressFinalize(this);
/// ＜summary＞
/// 释放该对象的实例变量
/// ＜/summary＞
/// ＜param name="disposing"＞＜/param＞
protected virtual void Dispose(bool disposing)
if (!disposing)
return;
if (this.xmlTxtRd != null)
this.xmlTxtRd.Close();
this.xmlTxtRd = null;
if (this._xmlPath != null)
this._xmlPath = null;
#endregion
#region XmlReader 的属性
/// ＜summary＞
/// 获取或设置列表框用于显示xml
/// ＜/summary＞
public ListBox listBox
get
return this._listBox;
set
this._listBox = value;
/// ＜summary＞
/// 获取或设置xml文件的绝对路径
/// ＜/summary＞
public string xmlPath
get
return this._xmlPath;
set
this._xmlPath = value;
#endregion
/// ＜summary＞
/// 遍历Xml文件
/// ＜/summary＞
public void EachXml()
this._listBox.Items.Clear();
this.xmlTxtRd = new XmlTextReader(this._xmlPath);
try
while(xmlTxtRd.Read())
this._listBox.Items.Add(this.xmlTxtRd.Value);
catch(XmlException exp)
throw new XmlException(_errMsg + this._xmlPath + exp.ToString());
finally
if (this.xmlTxtRd != null)
this.xmlTxtRd.Close();
/// ＜summary＞
/// 读取Xml文件的节点类型
/// ＜/summary＞
public void ReadXmlByNodeType()
this._listBox.Items.Clear();
this.xmlTxtRd = new XmlTextReader(this._xmlPath);
try
while(xmlTxtRd.Read())
this._listBox.Items.Add(this.xmlTxtRd.NodeType.ToString());
catch(XmlException exp)
throw new XmlException(_errMsg + this._xmlPath + exp.ToString());
finally
if (this.xmlTxtRd != null)
this.xmlTxtRd.Close();
/// ＜summary＞
/// 根据节点类型过滤Xml文档
/// ＜/summary＞
/// ＜param name="xmlNType"＞XmlNodeType 节点类型的数组＜/param＞
public void FilterByNodeType(XmlNodeType[] xmlNType)
this._listBox.Items.Clear();
this.xmlTxtRd = new XmlTextReader(this._xmlPath);
try
while(xmlTxtRd.Read())
for (int i = 0; i ＜ xmlNType.Length; i++)
if (xmlTxtRd.NodeType == xmlNType[i])
this._listBox.Items.Add(xmlTxtRd.Name + " is Type " + xmlTxtRd.NodeType.ToString());
catch(XmlException exp)
throw new XmlException(_errMsg + this.xmlPath + exp.ToString());
finally
if (this.xmlTxtRd != null)
this.xmlTxtRd.Close();
/// ＜summary＞
/// 读取Xml文件的所有文本节点值
/// ＜/summary＞
public void ReadXmlTextValue()
this._listBox.Items.Clear();
this.xmlTxtRd = new XmlTextReader(this._xmlPath);
try
while(xmlTxtRd.Read())
if (xmlTxtRd.NodeType == XmlNodeType.Text)
this._listBox.Items.Add(xmlTxtRd.Value);
catch(XmlException xmlExp)
throw new XmlException(_errMsg + this._xmlPath + xmlExp.ToString());
finally
if (this.xmlTxtRd != null)
this.xmlTxtRd.Close();
/// ＜summary＞
/// 读取Xml文件的属性
/// ＜/summary＞
public void ReadXmlAttributes()
this._listBox.Items.Clear();
this.xmlTxtRd = new XmlTextReader(this._xmlPath);
try
while(xmlTxtRd.Read())
if (xmlTxtRd.NodeType == XmlNodeType.Element)
if (xmlTxtRd.HasAttributes)
this._listBox.Items.Add("The Element " + xmlTxtRd.Name + " has " + xmlTxtRd.AttributeCount + " Attributes");
this._listBox.Items.Add("The Attributes are:");
while(xmlTxtRd.MoveToNextAttribute())
this._listBox.Items.Add(xmlTxtRd.Name + " = " + xmlTxtRd.Value);
else
this._listBox.Items.Add("The Element " + xmlTxtRd.Name + " has no Attribute");
this._listBox.Items.Add("");
catch(XmlException xmlExp)
throw new XmlException(_errMsg + this._xmlPath + xmlExp.ToString());
finally
if (this.xmlTxtRd != null)
this.xmlTxtRd.Close();
/// ＜summary＞
/// 读取Xml文件的命名空间
/// ＜/summary＞
public void ReadXmlNamespace()
this._listBox.Items.Clear();
this.xmlTxtRd = new XmlTextReader(this._xmlPath);
try
while(xmlTxtRd.Read())
if (xmlTxtRd.NodeType == XmlNodeType.Element && xmlTxtRd.Prefix != "")
this._listBox.Items.Add("The Prefix " + xmlTxtRd.Prefix + " is associated with namespace " + xmlTxtRd.NamespaceURI);
this._listBox.Items.Add("The Element with the local name " + xmlTxtRd.LocalName + " is associated with" + " the namespace " + xmlTxtRd.NamespaceURI);
if (xmlTxtRd.NodeType == XmlNodeType.Element && xmlTxtRd.HasAttributes)
while(xmlTxtRd.MoveToNextAttribute())
if (xmlTxtRd.Prefix != "")
this._listBox.Items.Add("The Prefix " + xmlTxtRd.Prefix + " is associated with namespace " + xmlTxtRd.NamespaceURI);
this._listBox.Items.Add("The Attribute with the local name " + xmlTxtRd.LocalName + " is associated with the namespace " + xmlTxtRd.NamespaceURI);
catch(XmlException xmlExp)
throw new XmlException(_errMsg + this._xmlPath + xmlExp.ToString());
finally
if (this.xmlTxtRd != null)
this.xmlTxtRd.Close();
/// ＜summary＞
/// 读取整个Xml文件
/// ＜/summary＞
public void ReadXml()
string attAndEle = string.Empty;
this._listBox.Items.Clear();
this.xmlTxtRd = new XmlTextReader(this._xmlPath);
try
while(xmlTxtRd.Read())
if (xmlTxtRd.NodeType == XmlNodeType.XmlDeclaration)
this._listBox.Items.Add(string.Format("＜?0 1 ?＞",xmlTxtRd.Name,xmlTxtRd.Value));
else if (xmlTxtRd.NodeType == XmlNodeType.Element)
attAndEle = string.Format("＜0 ",xmlTxtRd.Name);
if (xmlTxtRd.HasAttributes)
while(xmlTxtRd.MoveToNextAttribute())
attAndEle = attAndEle + string.Format("0='1' ",xmlTxtRd.Name,xmlTxtRd.Value);
attAndEle = attAndEle.Trim() + "＞";
this._listBox.Items.Add(attAndEle);
else if (xmlTxtRd.NodeType == XmlNodeType.EndElement)
this._listBox.Items.Add(string.Format("＜/0＞",xmlTxtRd.Name));
else if (xmlTxtRd.NodeType == XmlNodeType.Text)
this._listBox.Items.Add(xmlTxtRd.Value);
catch(XmlException xmlExp)
throw new XmlException(_errMsg + this._xmlPath + xmlExp.ToString());
finally
if (this.xmlTxtRd != null)
this.xmlTxtRd.Close();
窗体代码如下：
namespace XMLReading
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Xml;
public class Form1 : System.Windows.Forms.Form
private System.Windows.Forms.ListBox listBox1;
private System.Windows.Forms.Button button1;
private System.Windows.Forms.Button button2;
private System.Windows.Forms.Button button3;
private System.Windows.Forms.Button button4;
private System.Windows.Forms.Button button5;
private System.Windows.Forms.Button button6;
private System.Windows.Forms.Button button7;
private string xmlPath;
private XmlReader xRead;
/// ＜summary＞
/// 必需的设计器变量。
/// ＜/summary＞
private System.ComponentModel.Container components = null;
public Form1()
InitializeComponent();
/// ＜summary＞
/// 清理所有正在使用的资源。
/// ＜/summary＞
protected override void Dispose( bool disposing )
if( disposing )
if (components != null)
components.Dispose();
base.Dispose( disposing );
#region Windows 窗体设计器生成的代码
/// ＜summary＞
/// 设计器支持所需的方法 - 不要使用代码编辑器修改
/// 此方法的内容。
/// ＜/summary＞
private void InitializeComponent()
this.listBox1 = new System.Windows.Forms.ListBox();
this.button1 = new System.Windows.Forms.Button();
this.button2 = new System.Windows.Forms.Button();
this.button3 = new System.Windows.Forms.Button();
this.button4 = new System.Windows.Forms.Button();
this.button5 = new System.Windows.Forms.Button();
this.button6 = new System.Windows.Forms.Button();
this.button7 = new System.Windows.Forms.Button();
this.SuspendLayout();
//
// listBox1
//
this.listBox1.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom)
| System.Windows.Forms.AnchorStyles.Left)
| System.Windows.Forms.AnchorStyles.Right)));
this.listBox1.ItemHeight = 12;
this.list 参考技术C 和vb一样都是控件！
先安个vb，然后你进c#，添加控件。添加com那种。里面就有mscomm了。用他一切ok。
你要是用2005版的就不必麻烦了。2005在.net框架2.0下已经有自己的了，不用在用com了。幸福。。。
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