C#入门2
WinForm开发:
十五、一个简单的WinForm程序:
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
public class SimpleForm : System.Windows.Forms.Form
{
private System.ComponentModel.Container components = null;
private System.Windows.Forms.Button button1;
private System.Windows.Forms.TextBox textBox1;
public SimpleForm()
{
InitializeComponent();
}
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}
#region Windows Form Designer generated code
private void InitializeComponent()
{
this.components = new System.ComponentModel.Container();
this.Size = new System.Drawing.Size(300,300);
this.Text = Form1;
this.button1 = new System.Windows.Forms.Button();
this.textBox1 = new System.Windows.Forms.TextBox();
this.SuspendLayout();
//
// button1
//
this.button1.Location = new System.Drawing.Point(8, 16);
this.button1.Name = button1;
this.button1.Size = new System.Drawing.Size(80, 24);
this.button1.TabIndex = 0;
this.button1.Text = button1;
//
// textBox1
//
this.textBox1.Location = new System.Drawing.Point(112, 16);
this.textBox1.Name = textBox1;
this.textBox1.Size = new System.Drawing.Size(160, 20);
this.textBox1.TabIndex = 1;
this.textBox1.Text = textBox1;
//
// Form1
//
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(292, 273);
this.Controls.AddRange(new System.Windows.Forms.Control[] {
this.textBox1,
this.button1});
this.Name = Form1;
this.Text = Form1;
this.ResumeLayout(false);
}
#endregion
[STAThread]
static void Main()
{
Application.Run(new SimpleForm());
}
}
十六、运行时显示自己定义的图标:
//load icon and set to form
System.Drawing.Icon ico = new System.Drawing.Icon(@c:\temp\app.ico);
this.Icon = ico;
十七、添加组件到ListBox中:
private void Form1_Load(object sender, System.EventArgs e)
{
string str = First item;
int i = 23;
float flt = 34.98f;
listBox1.Items.Add(str);
listBox1.Items.Add(i.ToString());
listBox1.Items.Add(flt.ToString());
listBox1.Items.Add(Last Item in the List Box);
}
网络方面的:
十八、取得IP地址:
using System;
using System.Net;
class GetIP
{
public static void Main()
{
IPHostEntry ipEntry = Dns.GetHostByName (localhost);
IPAddress [] IpAddr = ipEntry.AddressList;
for (int i = 0; i < IpAddr.Length; i++)
{
Console.WriteLine (IP Address {0}: {1} , i, IpAddr.ToString ());
}
}
}
十九、取得机器名称:
using System;
using System.Net;
class GetIP
{
public static void Main()
{
Console.WriteLine (Host name : {0}, Dns.GetHostName());
}
}
二十、发送邮件:
using System;
using System.Web;
using System.Web.Mail;
public class TestSendMail
{
public static void Main()
{
try
{
// Construct a new mail message
MailMessage message = new MailMessage();
message.From = from@domain.com;
message.To = pengyun@cobainsoft.com;
message.Cc = ;
message.Bcc = ;
message.Subject = Subject;
message.Body = Content of message;
//if you want attach file with this mail, add the line below
message.Attachments.Add(new MailAttachment(c:\\attach.txt, MailEncoding.Base64));
// Send the message
SmtpMail.Send(message);
System.Console.WriteLine(Message has been sent);
}
catch(Exception ex)
{
System.Console.WriteLine(ex.Message.ToString());
}
}
}
二十一、根据IP地址得出机器名称:
using System;
using System.Net;
class ResolveIP
{
public static void Main()
{
IPHostEntry ipEntry = Dns.Resolve(172.29.9.9);
Console.WriteLine (Host name : {0}, ipEntry.HostName);
}
}
GDI+方面的:
二十二、GDI+入门介绍:
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
public class Form1 : System.Windows.Forms.Form
{
private System.ComponentModel.Container components = null;
public Form1()
{
InitializeComponent();
}
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}
#region Windows Form Designer generated code
private void InitializeComponent()
{
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(292, 273);
this.Name = Form1;
this.Text = Form1;
this.Paint += new System.Windows.Forms.PaintEventHandler(this.Form1_Paint);
}
#endregion
[STAThread]
static void Main()
{
Application.Run(new Form1());
}
private void Form1_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
{
Graphics g=e.Graphics;
g.DrawLine(new Pen(Color.Blue),10,10,210,110);
g.DrawRectangle(new Pen(Color.Red),10,10,200,100);
g.DrawEllipse(new Pen(Color.Yellow),10,150,200,100);
}
}
XML方面的:
二十三、读取XML文件:
using System;
using System.Xml;
class TestReadXML
{
public static void Main()
{
XmlTextReader reader = new XmlTextReader(C:\\test.xml);
reader.Read();
while (reader.Read())
{
reader.MoveToElement();
Console.WriteLine(XmlTextReader Properties Test);
Console.WriteLine(===================);
// Read this properties of element and display them on console
Console.WriteLine(Name: + reader.Name);
Console.WriteLine(Base URI: + reader.BaseURI);
Console.WriteLine(Local Name: + reader.LocalName);
Console.WriteLine(Attribute Count: + reader.AttributeCount.ToString());
Console.WriteLine(Depth: + reader.Depth.ToString());
Console.WriteLine(Line Number: + reader.LineNumber.ToString());
Console.WriteLine(Node Type: + reader.NodeType.ToString());
Console.WriteLine(Attribute Count: + reader.Value.ToString());
}
}
}
二十四、写XML文件:
using System;
using System.Xml;
public class TestWriteXMLFile
{
public static int Main(string[] args)
{
try
{
// Creates an XML file is not exist
XmlTextWriter writer = new XmlTextWriter(C:\\temp\\xmltest.xml, null);
// Starts a new document
writer.WriteStartDocument();
//Write comments
writer.WriteComment(Commentss: XmlWriter Test Program);
writer.WriteProcessingInstruction(Instruction,Person Record);
// Add elements to the file
writer.WriteStartElement(p, person, urn:person);
writer.WriteStartElement(LastName,);
writer.WriteString(Chand);
writer.WriteEndElement();
writer.WriteStartElement(FirstName,);
writer.WriteString(Mahesh);
writer.WriteEndElement();
writer.WriteElementInt16(age,, 25);
// Ends the document
writer.WriteEndDocument();
}
catch (Exception e)
{
Console.WriteLine (Exception: {0}, e.ToString());
}
return 0;
}
}
Web Service方面的:
二十五、一个Web Service的小例子:
<% @WebService Language=C# Class=TestWS %>
using System.Web.Services;
public class TestWS : System.Web.Services.WebService
{
[WebMethod()]
public string StringFromWebService()
{
return This is a string from web service.;
}
}
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