ASP .NET

DATALIST-I : DATABIND

2006-05-29T17:27:00.000+03:00

System.Web.UI.WebControls.DataList Datalist;

public void DataListDataBind()
{
ArrayList list = new ArrayList();

list = SampleMethod() ; // fill the arrayList

Datalist.DataSource=list;
Datalist.DataBind();
}

DROPDOWNLIST : SET

2006-05-29T17:23:00.000+03:00

System.Web.UI.WebControls.DropDownList ddl;

public setDropDownList(string text, string value)
{
ListItem item = new ListItem(text,value);
ddl.Items.Add(item);
}

DATAGRID-III : MS EXCEL

2006-05-29T17:15:00.000+03:00

public class ExcelCreator
{
public static void DataSetToExcel(int aid,DataSet dataSet,HttpResponse response)
{
response.Clear();
response.ContentType="application/vnd.ms-excel";
response.Charset="iso-8859-9";

StringWriter stringWriter=new StringWriter();
HtmlTextWriter htmlTextWriter=new HtmlTextWriter(stringWriter);

DataGrid dataGrid=new DataGrid();
dataGrid.DataSource=dataSet.Tables[0];
dataGrid.DataBind();
dataGrid.RenderControl(htmlTextWriter);
response.Write(stringWriter.ToString());
response.End();
}
}

ExcelCreator.DataSetToExcel(aid,em.GetAllEstates(aid),Response);

DATAGRID-II : PAGING

2006-05-29T16:55:00.000+03:00

System.Web.UI.WebControls.DataGrid Datagrid;

private void GridPageIndexChanged(object source, System.Web.UI.WebControls.DataGridPageChangedEventArgs e)
{
Datagrid.CurrentPageIndex = e.NewPageIndex;

ArrayList list = new ArrayList();

list = SampleMethod() ; // fill the arrayList

if(list.Count!=0)
{
Datagrid.DataSource=list;
Datagrid.DataBind();
}
}

Add this line to the PageLoad() or InitializeComponent()

this.Datagird.PageIndexChanged += new System.Web.UI.WebControls.DataGridPageChangedEventHandler(this.GridPageIndexChanged);

DATAGRID-I : DATABIND

2006-05-29T16:51:00.000+03:00

System.Web.UI.WebControls.DataGrid Datagrid;

public void DatalistDAtaBind()
{
ArrayList list = new ArrayList();

list = SampleMethod() ; // fill the arrayList

Datagrid.DataSource = list;
Datagrid.DataBind();
}

ASP.NET : SEND EMAIL-II

2005-11-17T21:21:00.000+02:00

using System;
using System.Web.Mail;
...
protected void Button1_Click(object sender, EventArgs e)
{
string fromAddress = "asp@asp.net";
string fromName = "Kerem Kosaner";
string toAddress = "asp@asp.com";
string toName = "Kerem Kosaner";
string msgSubject = "E-Mail";
string msgBody = "Hello";

MailMessage Message = new MailMessage();
Message.To = toAddress;
Message.From = fromAddress;
Message.Subject = msgSubject;
Message.Body = msgBody;
Message.Attachments.Add(new MailAttachment("c:\\photo.jpg")); //sample attachment
SmtpMail.SmtpServer = "your mail server name goes here";
SmtpMail.Send(Message);
}

ASP.NET : SEND EMAIL - I

2005-11-17T21:10:00.000+02:00

Example of how to send emails using the new ASP.NET v2 SMTP Class. Note: If mailserver runs local and does not need authentication, you can delete the SMTPServer configuration lines:


using System.Net.Mail;
...
protected void Button1_Click(object sender, EventArgs e)
{
string SMTPServer = "mail.server.asp"; // mail server address
string fromAddress = "asp@asp.net";
string fromName = "Kerem Kosaner";
string toAddress = "asp@asp.com";
string toName = "Kerem Kosaner";
string msgSubject = "E-Mail";string msgBody = "Hello"; 

SmtpClient client = new SmtpClient(SMTPServer);
client.Credentials= new System.Net.NetworkCredential("asp@asp.net", "password");
MailAddress from = new MailAddress(fromAddress, fromName);
MailAddress to = new MailAddress(toAddress, toName);
MailMessage message = new MailMessage(from, to); 

message.Subject = msgSubject;message.Body = msgBody; 
client.Send(message);
}

ASP.NET : READ/WRITE FILE

2005-11-13T13:29:00.001+02:00

How to read a file and write a line of text to a file called asp.txt :

using System;
using System.IO;

TextReader tr = new StreamReader("asp.txt");
// read a line of text
Console.WriteLine(tr.ReadLine());
// close the stream
tr.Close();

TextWriter tw = new StreamWriter("asptxt");
// write a line of text to the file
tw.WriteLine(DateTime.Now);
// close the stream
tw.Close();

C#

2005-11-13T13:28:00.001+02:00

In June 2000, Microsoft announced both the .NET platform and a new programming language called C#. C# is a strongly-typed object-oriented language designed to give the optimum blend of simplicity, expressiveness, and performance. The .NET platform is centered around a Common Language Runtime (similar to a JVM) and a set of libraries which can be exploited by a wide variety of languages which are able to work together by all compiling to an intermediate language (IL). C# and .NET are a little symbiotic: some features of C# are there to work well with .NET, and some features of .NET are there to work well with C# (though .NET aims to work well with many languages). This article is mostly concerned with C#, but sometimes it is useful to discuss .NET too. The C# language was built with the hindsight of many languages, but most notably Java and C++. It was co-authored by Anders Hejlsberg (who is famous for the design of the Delphi language), and Scott Wiltamuth.

C# and Java :
Below is a list of features C# and Java share, which are intended to improve on C++. These features are not the focus of this article, but it is very important to be aware of the similarities.

* Compiles into machine-independent language-independent code which runs in a managed execution environment.
* Garbage Collection coupled with the elimination of pointers (in C# restricted use is permitted within code marked unsafe)
* Powerful reflection capabilities
* No header files, all code scoped to packages or assemblies, no problems declaring one class before another with circular dependencies
* Classes all descend from object and must be allocated on the heap with new keyword
* Thread support by putting a lock on objects when entering code marked as locked/synchronized
Interfaces, with multiple-inheritance of interfaces, single inheritance of implementations
* Inner classes
* No concept of inheriting a class with a specified access level
* No global functions or constants, everything belongs to a class
* Arrays and strings with lengths built-in and bounds checking
* The "." operator is always used, no more ->, :: operators
* null and boolean/bool are keywords
* All values are initialized before use
* Can't use integers to govern if statements
* Try Blocks can have a finally clause

EXAMPLE:

Java/C++:

public int getSize()

{
return size;
}
public void setSize (int value)

{
size = value;
}
C#:

public int Size

{
get {return size;}
set {size = value;}
}

ASP.NET vs ASP

2005-11-13T13:28:00.000+02:00

Main advantage of ASP.NET compared to ASP is object oriented approach to software development. Well, ASP does support classes. VBScript and JavaScript allowed writing code using classes and objects. You could write an object-oriented business logic layer but this layer was encapsulated into COM and COM+ (DCOM) objects.

This is the first time Microsoft made so cardinal change to its technology and almost completely abandoned support of earlier versions of ASP in ASP.NET. Although Microsoft does declare that you can gradually integrate ASP.NET code into an existing application written in ASP in reality that doesn’t make much sense.

Due to new approach to application development Microsoft developed a completely new class structure that can aid in development of different types of applications. This library is well structured and all classes inherit from one ancestor – Object class.

ASP.NET is more than the next version of active server pages (ASP) ,it is the unified web development platform that provides the services necessary for developers to build enterprise-class web applications. ASP.NET is a compiled, .NET -based environment; you can author applications in any. NET compatible languages including ASP.NET, VB.NET and C#. NET Additionally, the entire .NET framework is available to any ASP.NET application.

ASP.NET

2005-11-12T17:59:00.000+02:00

"Writing dynamic, high-performance Web applications has never been easier"

ASP.NET combines unprecedented developer productivity with performance, reliability and deployment.

Developer Productivity
ASP.NET helps you deliver real world Web applications in record time.

Easy Programming Model. ASP.NET makes building real world Web applications dramatically easier. ASP.NET server controls enable an HTML-like style of declarative programming that let you build great pages with far less code than with classic ASP. Displaying data, validating user input, and uploading files are all amazingly easy. Best of all, ASP.NET pages work in all browsers -- including Netscape, Opera, AOL, and Internet Explorer.

Flexible Language Options . ASP.NET lets you leverage your current programming language skills. Unlike classic ASP, which supports only interpreted VBScript and JScript, ASP.NET now supports more than 25 .NET languages (including built-in support for VB.NET, C#, and JScript.NET -- no tool required), giving you unprecendented flexibility in your choice of language.

Great Tool Support. You can harness the full power of ASP.NET using any text editor -- even Notepad! But Visual Studio .NET adds the productivity of Visual Basic-style development to the Web. Now you can visually design ASP.NET Web Forms using familiar drag-drop-doubleclick techniques, and enjoy full-fledged code support including statement completion and color-coding. VS.NET also provides integrated support for debugging and deploying ASP.NET Web applications.

Rich Class Framework. Application features that used to be hard to implement, or required a 3rd-party component, can now be added in just a few lines of code using the .NET Framework. The .NET Framework offers over 4500 classes that encapsulate rich functionality like XML, data access, file upload, regular expressions, image generation, performance monitoring and logging, transactions, message queuing, SMTP mail, and much more!

From:www.asp.net