[lb] C# 2.0-Generics (framework support was added, and C# benefited from this); iterator pattern (the yield keyword); anonymous methods (the delegate keyword), nullable types, and the null coalescing operator (??).
[lb] C# 3.0-Anonymous types, extension methods, object initializers, collection initializers, implicitly typed local variables (var keyword), lambda expressions (=>), and the LINQ query expression pattern.
[lb] C# 4.0-Optional and Named Arguments, Dynamic typing (dynamic type), improved COM-Interop, and Contra and Co-Variance.

The new features in C# 3.0 that launched LINQ can be found in Chapter 2, “Introducing LINQ to Objects,” and this chapter documents each of the major new features in C# 4.0 from the perspective of how they impact the LINQ story.

Really its very cool……

public void MoveListViewItem(ListView lv, bool moveUp, ref ArrayList alGlobal, out int selectedIn)
{
int selIdx,sel;
selIdx = lv.SelectedItems[0].Index;
sel = selIdx;
if (moveUp)
{
if (selIdx == 0)
{
MessageBox.Show(“There is no item to move up”);
// return;
}
else
{
Object objTemp = alGlobal[selIdx - 1];
alGlobal[selIdx - 1] = alGlobal[selIdx];
alGlobal[selIdx] = objTemp;
sel = selIdx – 1;
}
}
else
{

if (selIdx == lv.Items.Count – 1)
{
MessageBox.Show(“There is no item to move down”);
//return;
}
else
{
Object objTemp = alGlobal[selIdx + 1];
alGlobal[selIdx + 1] = alGlobal[selIdx];
alGlobal[selIdx] = objTemp;
sel = selIdx+1;
}

}
selectedIn = sel;
lv.Focus();
}

class TransparentRichTextBox : RichTextBox
{
public TransparentRichTextBox()
{
base.ScrollBars = RichTextBoxScrollBars.None;
}

override protected CreateParams CreateParams
{
get
{
CreateParams cp = base.CreateParams;
cp.ExStyle |= 0×20;
return cp;
}
}

override protected void OnPaintBackground(PaintEventArgs e)
{
}
}

Checkout the following link where you can find a cool online test for Microsoft .Net Framework and Asp.Net
Take Test

-Nimesh

you can slide show your Videos , Audio and text one by one and together. Media resources can be run in background while your presentation is on.

Drag Data
Begin the Drag operation using

listView2.DoDragDrop(str, DragDropEffects.Copy | DragDropEffects.Move ) ;

in this case the the drag is set to either copy or move . The example works by dragging a text object.
However any type of object can be used for dragging.

Drop Data
Use the DragEnter function to perform the type of drop operationprivate void listView1_DragEnter(object sender, System.Windows.Forms.DragEventArgs e)
{
if (e.Data.GetDataPresent(DataFormats.Text))
e.Effect = DragDropEffects.Copy;
else
e.Effect = DragDropEffects.None;
}
In this case the effects are either copy or none.

Here is the complete listing of the DragDrop Class ..
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;

namespace ListViewControlDragDrop
{
///
/// Summary description for Form1.
///
public class Form1 : System.Windows.Forms.Form
{
private System.Windows.Forms.ListView listView1;
private System.Windows.Forms.Splitter splitter1;
private System.Windows.Forms.ListView listView2;
private System.Windows.Forms.ColumnHeader columnHeader1;
private System.Windows.Forms.ColumnHeader columnHeader2;
///
/// Required designer variable.
///
private System.ComponentModel.Container components = null;
bool lv1_mdown = false ;
private System.Windows.Forms.ColumnHeader columnHeader3;
private System.Windows.Forms.ColumnHeader columnHeader5;
bool lv2_mdown = false;

public Form1()
{
//
// Required for Windows Form Designer support
//
InitializeComponent();

//
// TODO: Add any constructor code after InitializeComponent call
//
}

///
/// Clean up any resources being used.
///
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}

#region Windows Form Designer generated code
///
/// Required method for Designer support – do not modify
/// the contents of this method with the code editor.
///
private void InitializeComponent()
{
this.listView1 = new System.Windows.Forms.ListView();
this.columnHeader1 = new System.Windows.Forms.ColumnHeader();
this.columnHeader3 = new System.Windows.Forms.ColumnHeader();
this.splitter1 = new System.Windows.Forms.Splitter();
this.listView2 = new System.Windows.Forms.ListView();
this.columnHeader2 = new System.Windows.Forms.ColumnHeader();
this.columnHeader5 = new System.Windows.Forms.ColumnHeader();
this.SuspendLayout();
//
// listView1
//
this.listView1.AllowDrop = true;
this.listView1.Columns.AddRange(new System.Windows.Forms.ColumnHeader[] {
this.columnHeader1,
this.columnHeader3});
this.listView1.Dock = System.Windows.Forms.DockStyle.Top;
this.listView1.FullRowSelect = true;
this.listView1.MultiSelect = false;
this.listView1.Name = “listView1″;
this.listView1.Size = new System.Drawing.Size(232, 176);
this.listView1.TabIndex = 0;
this.listView1.View = System.Windows.Forms.View.Details;
this.listView1.MouseDown
+= new System.Windows.Forms.MouseEventHandler(this.listView1_MouseDown);
this.listView1.DragDrop
+= new System.Windows.Forms.DragEventHandler(this.listView1_DragDrop);
this.listView1.DragEnter
+= new System.Windows.Forms.DragEventHandler(this.listView1_DragEnter);
this.listView1.MouseMove
+= new System.Windows.Forms.MouseEventHandler(this.listView1_MouseMove);
//
// columnHeader1
//
this.columnHeader1.Text = “COL1″;
this.columnHeader1.Width = 100;
//
// columnHeader3
//
this.columnHeader3.Text = “COL2″;
this.columnHeader3.Width = 100;
//
// splitter1
//
this.splitter1.Dock = System.Windows.Forms.DockStyle.Top;
this.splitter1.Location = new System.Drawing.Point(0, 176);
this.splitter1.Name = “splitter1″;
this.splitter1.Size = new System.Drawing.Size(232, 3);
this.splitter1.TabIndex = 1;
this.splitter1.TabStop = false;
//
// listView2
//
this.listView2.AllowDrop = true;
this.listView2.Columns.AddRange(new System.Windows.Forms.ColumnHeader[] {
this.columnHeader2,
this.columnHeader5});
this.listView2.Cursor = System.Windows.Forms.Cursors.Arrow;
this.listView2.Dock = System.Windows.Forms.DockStyle.Fill;
this.listView2.FullRowSelect = true;
this.listView2.Location = new System.Drawing.Point(0, 179);
this.listView2.MultiSelect = false;
this.listView2.Name = “listView2″;
this.listView2.Size = new System.Drawing.Size(232, 226);
this.listView2.TabIndex = 2;
this.listView2.View = System.Windows.Forms.View.Details;
this.listView2.MouseDown
+= new System.Windows.Forms.MouseEventHandler(this.listView2_MouseDown);
this.listView2.DragDrop
+= new System.Windows.Forms.DragEventHandler(this.listView2_DragDrop);
this.listView2.DragEnter
+= new System.Windows.Forms.DragEventHandler(this.listView2_DragEnter);
this.listView2.MouseMove
+= new System.Windows.Forms.MouseEventHandler(this.listView2_MouseMove);
//
// columnHeader2
//
this.columnHeader2.Text = “COL1″;
this.columnHeader2.Width = 100;
//
// columnHeader5
//
this.columnHeader5.Text = “COL2″;
this.columnHeader5.Width = 100;
//
// Form1
//
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(232, 405);
this.Controls.AddRange(new System.Windows.Forms.Control[] {
this.listView2,
this.splitter1,
this.listView1});
this.Name = “Form1″;
this.Text = “Form1″;
this.Load += new System.EventHandler(this.Form1_Load);
this.ResumeLayout(false);

}
#endregion

///
/// The main entry point for the application.
///
[STAThread]
static void Main()
{
Application.Run(new Form1());
}

private void Form1_Load(object sender, System.EventArgs e)
{
ImageList il = new ImageList();
il.Images.Add(new System.Drawing.Icon(&
quot;D:\smk\odlv\tick.ico”));
listView1.SmallImageList = il ;

ImageList i2 = new ImageList();
i2.Images.Add(new System.Drawing.Icon(“D:\smk\odlv\key04.ico”));
listView2.SmallImageList = i2 ;

string[] items = new string[2];
items[0] = “LA” ; items[1] = “Los Angeles”;
listView1.Items.Add(new ListViewItem(items,0));
items[0] = “WA” ; items[1] = “Seattle”;
listView1.Items.Add(new ListViewItem(items,0));
items[0] = “IL” ; items[1] = “Chicago”;
listView1.Items.Add(new ListViewItem(items,0));

items[0] = “FR” ; items[1] = “Paris”;
listView2.Items.Add(new ListViewItem(items,0));
items[0] = “BR” ; items[1] = “London”;
listView2.Items.Add(new ListViewItem(items,0));
items[0] = “IN” ; items[1] = “Mumbai”;
listView2.Items.Add(new ListViewItem(items,0));

}

private void listView1_DragDrop(object sender, System.Windows.Forms.DragEventArgs e)
{
string textBox1 = e.Data.GetData(DataFormats.Text).ToString();
string[] items = textBox1.Split(‘,’);
listView1.Items.Add(new ListViewItem(items,0));
lv1_mdown = false ;
lv2_mdown = false ;
}

private void listView2_DragDrop(object sender, System.Windows.Forms.DragEventArgs e)
{
string textBox1 = e.Data.GetData(DataFormats.Text).ToString();
string[] items = textBox1.Split(‘,’);
listView2.Items.Add(new ListViewItem(items,0));
lv2_mdown = false ;
lv1_mdown = false ;
}

private void listView2_DragEnter(object sender, System.Windows.Forms.DragEventArgs e)
{
if (e.Data.GetDataPresent(DataFormats.Text))
e.Effect = DragDropEffects.Copy;
else
e.Effect = DragDropEffects.None;
}

private void listView1_DragEnter(object sender, System.Windows.Forms.DragEventArgs e)
{
if (e.Data.GetDataPresent(DataFormats.Text))
e.Effect = DragDropEffects.Copy;
else
e.Effect = DragDropEffects.None;
}

private void listView1_MouseMove(object sender, System.Windows.Forms.MouseEventArgs e)
{
if ( ! lv1_mdown ) return ;
if ( e.Button == MouseButtons.Right ) return ;

string str = GetItemText(listView1) ;
if ( str == “” ) return ;

listView1.DoDragDrop(str , DragDropEffects.Copy | DragDropEffects.Move ) ;
}

private void listView2_MouseMove(object sender, System.Windows.Forms.MouseEventArgs e)
{
if ( ! lv2_mdown ) return ;
if ( e.Button == MouseButtons.Right ) return ;

string str = GetItemText(listView2) ;
if ( str == “” ) return ;

listView2.DoDragDrop(str, DragDropEffects.Copy | DragDropEffects.Move ) ;
}

private void listView1_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e)
{
lv1_mdown = true ;
}

private void listView2_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e)
{
lv2_mdown = true ;
}

public string GetItemText(ListView LVIEW)
{
int nTotalSelected = LVIEW.SelectedIndices.Count;
if ( nTotalSelected <= 0 ) return "";
IEnumerator selCol = LVIEW.SelectedItems.GetEnumerator();
selCol.MoveNext() ;
ListViewItem lvi = (ListViewItem)selCol.Current;
string mDir = "";
for ( int i=0; i < lvi.SubItems.Count;i++)
mDir += lvi.SubItems[i].Text +",";

mDir = mDir.Substring(0,mDir.Length-1);
return mDir ;
}
}
}

• What are the differences between Get and post methods in form submitting, give the case where we can use get and we can use post methods?
• Who is the father of PHP and explain the changes in PHP versions?
• How can we submit a form without a submit button?
• In how many ways we can retrieve the date in the result set of mysql using PHP?
• What is the difference between mysql_fetch_object and mysql_fetch_array?
• What is the difference between $message and $$message?
• How can we extract string ‘techinterviews.com ‘ from a string ‘http://www.techinterviews.com’ using regular expression of PHP?
• How can we create a database using PHP and mysql?
• What are the differences between require and include, include_once?
• Can we use include (”techinterviews.php”) two times in a PHP page “makeit.PHP”?
• What are the different tables present in mysql, which type of table is generated when we are creating a table in the following syntax: create table employee(eno int(2),ename varchar(10)) ?
• Functions in IMAP, POP3 AND LDAP?
• How can I execute a PHP script using command line?
• Suppose your Zend engine supports the mode Then how can u configure your PHP Zend engine to support mode ?
• Shopping cart online validation i.e. how can we configure Paypal, etc.?
• What is meant by nl2br()?
• Draw the architecture of Zend engine?
• What are the current versions of apache, PHP, and mysql?
• What are the reasons for selecting lamp (linux, apache, mysql, PHP) instead of combination of other software programmes, servers and operating systems?
• How can we encrypt and decrypt a data present in a mysql table using mysql?
• How can we encrypt the username and password using PHP?
• What are the features and advantages of object-oriented programming?
• What are the differences between procedure-oriented languages and object-oriented languages?
• What is the use of friend function?
• What are the differences between public, private, protected, static, transient, final and volatile?
• What are the different types of errors in PHP?
• What is the functionality of the function strstr and stristr?
• What are the differences between PHP 3 and PHP 4 and PHP 5?
• How can we convert asp pages to PHP pages?
• What is the functionality of the function htmlentities?
• How can we get second of the current time using date function?
• How can we convert the time zones using PHP?
• What is meant by urlencode and urldocode?
• What is the difference between the functions unlink and unset?
• How can we register the variables into a session?
• How can we get the properties (size, type, width, height) of an image using PHP image functions?
• How can we get the browser properties using PHP?
• What is the maximum size of a file that can be uploaded using PHP and how can we change this?
• How can we increase the execution time of a PHP script?
• How can we take a backup of a mysql table and how can we restore it. ?
• How can we optimize or increase the speed of a mysql select query?
• How many ways can we get the value of current session id?
• How can we destroy the session, how can we unset the variable of a session?
• How can we destroy the cookie?
• How many ways we can pass the variable through the navigation between the pages?
• What is the difference between ereg_replace() and eregi_replace()?
• What are the different functions in sorting an array?
• How can we know the count/number of elements of an array?
• What is the PHP predefined variable that tells the What types of images that PHP supports?
• How can I know that a variable is a number or not using a JavaScript?
• List out some tools through which we can draw E-R diagrams for mysql.
• How can I retrieve values from one database server and store them in other database server using PHP?
• List out the predefined classes in PHP?
• How can I make a script that can be bilanguage (supports English, German)?
• What are the difference between abstract class and interface?
• How can we send mail using JavaScript?

The idea is noble: instead of rendering an entire HTML page on each little change on the page, it’s much better to send an asynchronous request that will get the data for you and refresh only the relevant portion of the screen. Every author writing on AJAX is giving the same (the only? ) example where this technology is being used: Google maps and email. (BTW, I’m a little sick of these examples). Since I’m not going to be helping Google in improving their maps, I’d like to see some real-world examples implementing this technology. Ajax proponents will immediately come with this exciting example of how great it is to refresh some screen info as the user enters character in a text field. And here’s a sample conversation that might have happened between an imaginary AJAX supporter and myself.

• Tim Berners-Lee: “Father of the World Wide Web” and expectant father of the Semantic Web
• Joshua Bloch: Formerly at Sun, where he helped architect Java’s core platform; now at Google
• Grady Booch: One of the original developers of the Unified Modeling Language
• Adam Bosworth: Famous for Quattro Pro, Microsoft Access, and IE4; then BEA, now Google
• Don Box: Coauthor of SOAP
• Stewart Brand: Cofounder in 1984 of the WELL bulletin board
• Tim Bray: One of the prime movers of XML, now with Sun
• Dan Bricklin: Cocreator of VisiCalc, the first PC spreadsheet
• Larry Brilliant: Cofounder in 1984 of the WELL bulletin board
• Sergey Brin: Son-of-college-math-professor turned cofounder of Google, Inc.
• Dave Cutler: The brains behind VMS; hired away by Microsoft for Windows NT
• Don Ferguson: Inventor of the J2EE application server at IBM
• Roy T. Fielding: Primary architect of HTTP 1.1 and a founder of the Apache Web server
• Bob Frankston: Cocreator of VisiCalc, the first PC spreadsheet
• Jon Gay: The “Father of Flash”
• James Gosling: “Father of Java” (though not its sole parent)
• Anders Hejlsberg: Genius behind the Turbo Pascal compiler, subsequently “Father of C#”

CIO, CTO & Developer Resources

• Daniel W. Hillis: VP of R&D at the Walt Disney Company; cofounder, Thinking Machines
• Miguel de Icaza: Now with Novell, cofounder of Ximian
• Martin Fowler: Famous for work on refactoring, XP, and UML
• Bill Joy: Cofounder and former chief scientist of Sun; main author of Berkeley Unix
• Mitch Kapor: Designer of Lotus 1-2-3, founder of Lotus Development Corporation
• Brian Kernighan: One of the creators of the AWK and AMPL languages
• Mitchell Kertzman: Former programmer, founder, and CEO of Powersoft (later Sybase)
• Klaus Knopper: Prime mover of Knoppix, a Linux distro that runs directly from a CD
• Craig McClanahan: Of Tomcat, Struts, and JSF fame
• Nathan Myhrvold: Theoretical and mathematical physicist, former CTO at Microsoft
• Tim O’Reilly: Publisher, open source advocate; believer that great technology needs great books
• Jean Paoli: One of the co-creators of the XML 1.0 standard with the W3C; now with Microsoft
• John Patrick: Former VP of Internet technology at IBM, now “e-tired”
• Rob Pike: An early developer of Unix and windowing system (GUI) technology
• Dennis Ritchie: Creator of C and coinventor of Unix
• Richard Stallman: Free software movement’s leading figure; founder of the GNU Project
• Bjarne Stroustrup: The designer and original implementor of C++
• Andy Tanenbaum: Professor of computer science, author of Minix
• Ken Thompson: Coinventor of Unix
• Linus Torvalds: “Benevolent dictator” of the Linux kernel
• Alan Turing: Mathematician; author of the 1950 paper “Computing Machinery and Intelligence”
• Guido van Rossum: Author of the Python programming language
• Ann Winblad: Former programmer, cofounder of Hummer Winblad Venture Partners

Since Eclipse’s first release in 2001, it has become a popular environment for Java development. In the period between March 10 and May 11, 2005, users downloaded over 17,000 copies of one of the production SDK releases and over 3,500 copies of one of the stable (milestone) SDK builds on average every day. A vibrant eco-system of developers, plug-in providers, authors, and bloggers has grown up around it. Eclipse has also gained the backing of the key Java vendors including BEA, Borland, IBM, SAP, and Sybase. Developers like Eclipse because it provides a great platform for building Java applications, and companies like it because it unifies their software tools under one open source umbrella.

 In late June of this year, the latest release of the Eclipse Platform, version 3.1, will be available for download from eclipse.org. In this article, I’ll highlight some of the more interesting new features it contains. I’ll also discuss some of the other Eclipse projects that are re-leasing new versions at about the same time.

A New Hope for Developers
One of the major new features of Eclipse 3.1 is full support for the new language constructions in J2SE 5.0 (also called J2SE 1.5 in the old numbering scheme). Generics, annotations, enums, auto boxing, enhanced for loop, etc., – it’s all in there, both in the underlying compiler and the user interface and code assistance that Eclipse is known for.

Bill Dudney, editor of Eclipse Developer’s Journal with Mike Milinkovich during their live SYS-CON.TV interview.

While Eclipse didn’t invent the idea of refactoring, it provides one of the most complete implementations. Eclipse 3.1 comes with a number of new and enhanced refactorings, code assistance, and "quick fixes", many in conjunction with its J2SE5 support. For example, you can put your cursor on a conventional for loop that iterates over an array (see Figure 1), press Ctrl+1, and Eclipse will offer to convert it to one of the new style for loops (see Figure 2).

At the heart of Eclipse’s Java support is a fully compliant incremental Java compiler, written in Java and supporting Java language levels 1.3, 1.4, and now 5.0. Having its own compiler brings Eclipse some benefits including fast compilation, smoother debugging and refactoring, and a lot of diagnostic warnings. The compiler has found several uses outside of Eclipse. It’s bundled with many popular Linux distributions and commercial applications, and recent versions of Apache Tomcat use it to compile JSPs. It forms the basis of the AspectJ compiler. And I wouldn’t be surprised to see the Eclipse compiler used in the recently announced Apache Harmony project as well.

Other usability enhancements make 3.1 more productive. For example, the new release contains a more integrated help system that changes to show help for what you’re doing at all times. One of the largest improvements is in the area of Preferences. Addressing a key user request, the Preference dialog now offers the ability to filter by keywords, for example, you can easily find all options having to do with "tabs" by typing that keyword into the filter box. In addition, Web-like navigation has been added to link to related preferences and go forward and backward in the history.

To make preferences easier to find, in Eclipse 3.1 the Preferences dialog can be opened directly from many editors and views through the context menu. For example, if you right-click in the Java editor and select Preferences…, the dialog will appear. Only the options related to Java editing, including those for the text editor that the Java editor inherits, are shown.