为项目组写了几个Howto的Case。

本文描述了一个用C#实现了在Windows Form或者Windows Console下调用Web Service的例子。
这是一个较复杂的例子。解决方案由三个项目组成：

• ClassLibrary：定义了两个自定义类，编译成Windows Class Library(DLL)，并由另外两个项目引用
• WebServiceHowto：Web Service的实现，主要是一个GetStudent的WebMethod，接受一个自定义类Dorm为参数，返回另一个自定义类Student。
• UseWebServiceHowto：Windows Console(也可以是Windows Form)，实现一个Proxy，通过添加Service Reference调用Web Service。

1. ClassLibrary
Dorm.cs
[code=’c#’]
using System;
using System.Collections.Generic;
using System.Text;
using System.Xml.Serialization;

namespace ClassLibrary
{
[Serializable, XmlRoot(Namespace = “http://its.hpcc.tongji.edu.cn”)]
public class Dorm
{
[XmlAttribute]
public string Name;
[XmlElement]
public string Number;
}
}
[/code]

Student.cs
[code=’c#’]
using System;
using System.Collections.Generic;
using System.Text;
using System.Xml.Serialization;

namespace ClassLibrary
{
[Serializable, XmlRoot(Namespace = “http://its.hpcc.tongji.edu.cn”)]
public class Student
{
[XmlElement]
public long Number;
[XmlElement]
public string Name;
[XmlElement]
public bool enabled;
[XmlElement]
public Dorm dorm;
}
}
[/code]

2. WebServiceHowto
ITSTestService.asmx.cs
[code=’c#’]
using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Web;
using System.Web.Services;
using System.Web.Services.Protocols;
using ClassLibrary;

namespace WebServiceHowto
{
///

[WebService(Namespace = “http://hpcc.tongji.edu.cn/”)]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
[ToolboxItem(false)]
public class ITSTestService : System.Web.Services.WebService
{
[WebMethod]
public string HelloWorld()
{
return “Hello World”;
}

[WebMethod]
public Student GetStudent(Dorm d)
{
Student student = new Student();

student.dorm = d;
student.enabled = true;
student.Number = 222222;
student.Name = “maojun”;

return student;
}
}
}
[/code]

3. UseWebServiceHowto
Program.cs
[code=’c#’]
using System;
using System.Collections.Generic;
using System.Text;
using ClassLibrary;

namespace UseWebServiceHowto
{
class Program
{
static void Main(string[] args)
{
WebServiceProxy proxy = new WebServiceProxy();
Dorm dorm = new Dorm();

dorm.Name = “geng der drom”;
dorm.Number = “16-501-5”;

Student s = proxy.GetStudent(dorm);
Console.WriteLine(“Student Name={0}, Dorm={1}”, s.Name, s.dorm.Name);
}
}
}
[/code]

WebServiceProxy.cs
[code=’c#’]
using System;
using System.Collections.Generic;
using System.Text;
using System.Web.Services.Protocols;
using System.Web.Services;
using System.Diagnostics;
using System.ComponentModel;
using ClassLibrary;

namespace UseWebServiceHowto
{
[WebServiceBinding(Name = “TestWebServiceSoap”, Namespace = “http://hpcc.tongji.edu.cn/”), DebuggerStepThrough, DesignerCategory(“code”)]
class WebServiceProxy : SoapHttpClientProtocol
{
public WebServiceProxy()
{
base.Url = “http://localhost:3489/ITSTestService.asmx”;
}

[SoapDocumentMethod(“http://hpcc.tongji.edu.cn/GetStudent”, RequestNamespace = “http://hpcc.tongji.edu.cn/”, ResponseNamespace = “http://hpcc.tongji.edu.cn/”, Use = System.Web.Services.Description.SoapBindingUse.Default, ParameterStyle = System.Web.Services.Protocols.SoapParameterStyle.Default)]
public Student GetStudent(Dorm d)
{
return (Student)base.Invoke(“GetStudent”, new object[] { d })[0];
}
}
}
[/code]

下载：用Visual Studio 2008打开
http://download.nocoo.us/Download/Archive/CSharpHowto/SQLServer.rar

为项目组写了几个Howto的Case。

本文描述了一个用C#实现类的XML序列化及反序列化。
功能是生成一个类的实例，然后序列化成XML文件形式。
或者将一个已经序列化成文件的XML反序列化成类的实例。

为了充分展示Framework功能，在一个类里面嵌入另一个类，并且XML属性字段混杂。

Student.cs
[code=’c#’]
using System;
using System.Collections.Generic;
using System.Text;
using System.Xml.Serialization;

namespace XMLHowto
{
[Serializable,XmlRoot(Namespace=”http://its.hpcc.tongji.edu.cn”)]
public class Student
{
[XmlElement]
public long Number;
[XmlElement]
public string Name;
[XmlElement]
public bool enabled;
[XmlElement]
public Dorm dorm;
}
}
[/code]

Dorm.cs
[code=’c#’]
using System;
using System.Collections.Generic;
using System.Text;
using System.Xml.Serialization;

namespace XMLHowto
{
[Serializable, XmlRoot(Namespace = “http://its.hpcc.tongji.edu.cn”)]
public class Dorm
{
[XmlAttribute]
public string Name;
[XmlElement]
public string Number;
}
}
[/code]

Program.cs
[code=’c#’]
using System;
using System.Collections.Generic;
using System.Text;
using System.Xml.Serialization;
using System.IO;

namespace XMLHowto
{
class Program
{
static void Main(string[] args)
{
XmlSerializer xmlSerializer = new XmlSerializer(typeof(Student));

//序列化
FileStream fs1 = new FileStream(“./student.xml”, FileMode.Create, FileAccess.Write);
Student student = new Student();
Dorm dorm = new Dorm();

dorm.Name = “der drom”;
dorm.Number = “16-501-1”;

student.dorm = dorm;
student.enabled = true;
student.Number = 222222;
student.Name = “maojun”;

xmlSerializer.Serialize(fs1, student);

//反序列化
FileStream fs2 = new FileStream(“./student2.xml”, FileMode.Open, FileAccess.Read);
Student student2 = (Student)xmlSerializer.Deserialize(fs2);
}
}
}
[/code]

下载：用Visual Studio 2008打开
http://download.nocoo.us/Download/Archive/CSharpHowto/XML.rar

为项目组写了几个Howto的Case。

本文描述了一个用C#实现的简单的SQL Server查询。
功能是每次执行插入一行记录，然后输出全部记录。

Program.cs
[code=’c#’]
using System;
using System.Collections.Generic;
using System.Text;
using System.Data.SqlClient;

namespace SQLServerHowto
{
class Program
{
static void Main(string[] args)
{
SqlConnection myConnection = new SqlConnection(“Data Source=itsdbserver;user id=its;password=its;database=ITSTestDB”);
myConnection.Open();

string sql = “insert into news (news) values (@value)”;
SqlCommand sc = new SqlCommand(sql, myConnection);
SqlParameter param = new SqlParameter(“value”, “现在是” + DateTime.Now.ToString() + “，但毛君还是垃圾”);
sc.Parameters.Add(param);

int count = sc.ExecuteNonQuery();
Console.WriteLine(“Line inserted: ” + count.ToString());

string sql2 = “select * from News”;
SqlCommand sc2 = new SqlCommand(sql2, myConnection);
SqlDataReader reader = sc2.ExecuteReader();

while (reader.Read())
{
Console.WriteLine(String.Format(“ID={0}, news={1}”, reader[0], reader[1]));
}
}
}
}
[/code]

下载：用Visual Studio 2008打开
http://download.nocoo.us/Download/Archive/CSharpHowto/SQLServer.rar

为项目组写了几个Howto的Case。

本文描述了一个用C#实现的简单的Windows Form。
功能是先出现一个登陆窗口，然后用户输入用户名密码，登陆窗口隐藏，加载主窗口。

LoginForm.cs
[code=’c#’]
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace WindowsFormHowto
{
public partial class LoginForm : Form
{
public LoginForm()
{
InitializeComponent();
}

private void button2_Click(object sender, EventArgs e)
{
textBox1.Text = “”;
textBox2.Text = “”;
}

private void button1_Click(object sender, EventArgs e)
{
MainForm mainForm = new MainForm(textBox1.Text);
this.Hide();
mainForm.Show();
}
}
}
[/code]

下载：用Visual Studio 2008打开
http://download.nocoo.us/Download/Archive/CSharpHowto/WindowsForm.rar

为项目组写了几个Howto的Case。

本文描述了一个用C#实现的简单的Windows Service。
功能是在启动和停止服务的时候，在Windows事件查看器（Event Log）里添加一条log。

在Visual Studio 2008中建立Windows Service项目之后，会自动生成一个Service1的服务，它的名字默认是Service1，我先把它的文件名从Service1.cs改成ITSTestService.cs，然后需要在ITSTestService.cs的设计器视图的属性里，把Service Name改成ITSTestService，不然添加完服务后，启动服务时会报出这样的错误：

由于下列错误，ITS Test Service 服务启动失败:
配置成在该可执行程序中运行的这个服务不能执行该服务。

因为服务安装的名字是Service1。

Windows系统添加服务：
[code=’c#’]sc create ITSTestService binpath= “PATH TO SERVICE EXE” type= share start= auto displayname= “ITS Test Service”[/code]

Windows系统删除服务：
[code=’c#’]sc delete ITSTestService[/code]

ITSTestService.cs
[code=’c#’]
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Diagnostics;
using System.ServiceProcess;
using System.Text;

namespace WindowsServiceHowto
{
public partial class ITSTestService : ServiceBase
{
public ITSTestService()
{
InitializeComponent();
}

protected override void OnStart(string[] args)
{
WriteLog(“ITSTestService Started.”);
}

protected override void OnStop()
{
WriteLog(“ITSTestService Stopped.”);
}

private void WriteLog(string eventString)
{
string source;
string log;
source = “ITS Test Windows Service”;
log = “Application”;

if (!EventLog.SourceExists(source))
{
EventLog.CreateEventSource(source, log);
}

EventLog.WriteEntry(source, eventString);
}
}
}
[/code]

下载：用Visual Studio 2008打开
http://download.nocoo.us/Download/Archive/CSharpHowto/WindowsService.rar