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    Resizing images using C#

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    Uploading of images and resizing (scaling) of them is a very common utility application. Various applications for this function are - Photo thumbnails, profile photos, stock photograph images like Flickr, etc. The System.Drawing namespace provides a built-in thumbnail creation function, but here is a code snippet to resize images preserving its original aspect ratio, maintaining high qua...
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    Web Scraping or Web Data extraction is a software technique for extracting information from web pages. There are different types of web scraping, and a most common one is the web crawling done by search engines. The text content of the website will be extracted from web pages, and will be indexed for searching. This article explains a simple method of extracting text content using C# and Regul...
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    This article explains another technique in Web Scraping, which has been an important function of search engine crawling - extraction of all links for any given URL. This is quite a simple procedure, especially when done using Regular Expressions. The HTML content from any given url is downloaded as a string, and all occurences of hyperlinks are extracted from it.
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    A sitemap is a list of pages available on a website. This was used to help visitors to provide an overall navigation of the website, but now sitemaps are mainly used for listing pages and their updates to search engines. Sitemaps are no more in HTML format, but in plain text format or commonly HTML.
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    This article explains how to add a graphic visitor counter to your website by adding a simple ASPX webpage with few lines of programming. You'll no more be required to add a third party free graphic counter utilities for your ASP.NET web site.
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    I found the META Description element in a webpage to be very useful element of a webpage. The Description content was displayed as it is on search engine results. Everytime I created a website, I used this description tag on all pages, just writing what this website was mainly meant for, or what the company serves through the result. But sooner I observed that this is limiting my results on th...
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    The most common way to insert the image into the HTML Body of the email using IMG elements with SRC attribute set to an image uploaded on your website or any internet source. This works fine with all online webmails like yahoo, or gmail, or even on your Outlook when you are connected to internet. Due to security issues, such images will get blocked on the webmails or Outlook unless you authori...
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    This articles explains how to use the ASP.NET Membership and Roles features to control various parts of the page according the logged in user. By using these features, we can create templates for anonymous users, logged-in users, role-based templates, and also login and online status. Most simple case would be to display Login link when no user is logged in, and the same would turn as Logout li...
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    This article gives you a simple code snippet for validating an email textbox field using Regular Expressions. The javascript function is called on onblur event of the textbox, and it will not allow the user to leave the textbox without entering a valid email address. This may look like a disturbing feature, but I have added a simple check at beginning to skip this checkup if th...
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    A favicon (short for favorites icon), also known as a website icon, shortcut icon, url icon, or bookmark icon is a 16×16, 32×32 or 64×64 pixel square icon associated with a particular website or webpage. A web designer can create such an icon and install it into a website (or webpage) by several means, and most graphical web browsers will then make use of it.
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    As you parse the UserAgent string in the server-side VB.NET or C#.NET code, it is possible to parse it using T-SQL programming. This would be extremely useful when your web application is more SQL Server dependant - having most of the business logic as stored procedures and functions. The only difference here is, as in ASP.NET, the UserAgent string is not accessible directly inside T...
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    Calculation of geographical distance is a very important utility function in GPS related procedures. The Haversine formula is used commonly for this. The haversine formula is an equation important in navigation, giving great-circle distances between two points on a sphere from their longitudes and latitudes. This actually gives the shortest distance between two points, assuming the globe as a ...
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    Here is a very useful C# code snippet for generating random strong passwords. There are two code snippets provided here, one for generating a simple random password, and other for generating a strong password. The password is generated using upper case and lower case alphabets, numerals and special characters.
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    The Haversine formula is used for calculating the distance between two points on the globe. This function gives a nearly accurate distance value, and is used widely in GPS related calculations and for vehicle tracking. This article provides a code snippet for calculating distance between two points taking latitude and longitude values as example.
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    In the current web designing trend, the tableless web layouts are very popular and widely used. This article explains how to create tableless layouts using DIV elements. The technique very well substitutes the still commonly used layouts using tables and nested tables.
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    A shopping cart application would require to display the products in a multicolumn grid, rather than a straight down list or a table. The each item in a product grid would have a product photo thumbnail, name of the product, price (optional), as well as additional metadata like reviews, ratings, etc. This articles explains how to set up a product grid using ASP.NET ListView control and floating...
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    The TechWorld is now traversing from HTML 4 to HTML 5 using great features and advantages of the later, but still a major share of web still relies on the former version to keep compatibility and to meet with greater number of incompatible of browsers still in use. HTML5/CSS3 is greatly picked by web enthusiasts and web designing companies, but yet not reached the commercial production in larg...
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    You don't always need to depend on online favicon designers to create a good favicon for your website. If website is an identity for you or your business, favicon or favorites icon or shortcut icon is an identity for your website. A favicon represents your website in almost all web 2.0 integrations and posts. 
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    Google is making some ground in the browser market. In Nov. 2010, the browser hit a 9.27 percent market share, up almost a full percentage point from October, according to a report from Net Applications. The gain came at the cost of Microsoft’s Internet Explorer, which dropped by nearly a full point to 58.41 percent. Mozilla Firefox suffered a drop, but it was insignificant drop of .02 pe...
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    HONG KONG/TAIPEI (Reuters) – Component suppliers for Apple Inc's iPad are gearing up for a new round of production in the first quarter, sources said on Friday, with one saying the product will be a revamp of the popular tablet computer including front- and back-mounted cameras.
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    SANTA CLARA, Calif., Dec. 8, 2010 – AMD, Dell, Intel Corporation, Lenovo, Samsung Electronics LCD Business and LG Display today announced intentions to accelerate adoption of scalable and lower power digital interfaces such as DisplayPort and High-Definition Multimedia Interface® (HDMI) into the PC.
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    The battle between Google and Microsoft to shape the future of personal computing has stepped up a gear after Google unveiled an internet-centric laptop that it said would offer a cheaper alternative to the traditional PC.
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    MapReduce is a patented software framework introduced by Google to support distributed computing on large data sets on cluster of computers. The framework is inspired by the map and reduce functions in functional programming, although their purpose in the MapReduce framework is not the same as their original forms.
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    Facebook is taking its hackathons global with the launch of the Facebook 2011 Hacker Cup. "We're starting the Hacker Cup to bring engineers from around the world together to compete in a multi-round programming competition," Tim Stanke, Facebook software engineer said in a blog post. "Contestants will have to successfully solve algorithmic-based problem statements to advance and...
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    More evidence of the "consumerization" of enterprise IT: On Monday, security firm RSA announced that it will release software designed to make an Android device provide two-factor authentication by serving as an RSA SecurID authenticator.
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    Google's announced yet another awesome Gmail feature today. Called e-mail delegation, the feature will allow you to easily manage multiple Gmail accounts without signing in and out of Gmail and switching accounts manually.
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    We've already seen mounting evidence that the numerous benefits of open source software are making a big impression on businesses far and wide, and this week saw the release of yet more data corroborating that fact.
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    NEW DELHI: Steve Ballmer's future in Microsoft may have become uncertain after a prominent hedge fund manager called for his resignation on Thursday, but that didn't stop the beefy, boisterous pal of Bill Gates from waxing eloquent about the tech industry's future.
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     Oracle has issued an update to Java SE that fixes a number of critical bugs in the widely used Internet software.
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      The Web's Cascading Style Sheets now can be rendered consistently across a large number of devices. The World Wide Web Consortium has updated its widely used specifications for formatting the look and feel of Web pages, a standard known as CSS (Cascading Style Sheets). After almost a decade of work, the W3C's CSS Working Group has published CSS version 2.1 ...
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    Google updated Chrome to version 12, adding a new tool that warns users when they've downloaded files from dangerous websites.
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    While debate rages on over the value of nonrelational, or NoSQL, databases, two case studies presented at a New York conference this week point to the benefits of using the MongoDB non-SQL data store instead of a standard relational database.
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    Firefox users have targeted by new scam that tries to load a user’s PC with fake antivirus software using a passably convincing version of the Windows Update page.
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    Fans of Linux, Microsoft and Macs used to be able to search for information about those topics on Google using specialized search tools that narrowed the results to a focused set of highly relevant Web sites.
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    Connect, Compete, Improve. It's a mantra that doesn't quite roll off the tongue, but will soon become exceedingly familiar to the legion of Call of Duty fans around the globe.
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    Google is making more changes to its search algorithm, the company reportedly confirmed at the SMX Advanced conference in Seattle this week.
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    With hundreds of different smartphone models and a growing number of tablets that run Google’s Android operating system, fragmentation continues to challenge. Some devices can run certain apps, while others can’t. Google begin taking steps to address this issue last year, and more recently, has added a new function to its web-based Android Market. Consumers can now see if an applica...
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    Malaysia's Communications and Multimedia Commission said that 51 websites in the .gov.my domain were attacked beginning late Wednesday, and that 41 of the sites suffered various levels of disruption.
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    Hewlett-Packard and Toshiba will collaborate to push cloud computing and related services to infrastructure organizations, the companies said on Thursday
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    Yahoo wants to help people find mobile applications and information about them. On Thursday, the company is unveiling a feature in its search engine called App Search, as well as application search tools for Android and iPhone devices called AppSpot.
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    Oracle (ORCL) refused to provide critical bug fixes for customers who run its software on Hewlett-Packard's (HPQ) Integrity servers, in a bid to coerce them to switch over to Oracle hardware, HP alleged in a lawsuit it filed Wednesday.
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    Only hours after embarrassing the CIA by downing its website, hacking jokesters LulzSec have issued another self-declared indictment of the Internet’s woeful security, leaking a database of 62,000 stolen passwords and user names.
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    The battle against ‘Autorun’ malware, once a major threat to PC users, appears to be heading for victory according to new figures put out by Microsoft that show big declines in infection rates during 2011.
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    Facebook is finally preparing to release its official application for the Apple iPad after almost a year in development, according to reports.
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      The Co-CEOs of Research In Motion (RIM)don't seem to have any regrets about how the launch of its PlayBook was handled.
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    Google's latest attempt at its own branded hardware may be in the pipeline, and this time the device may be part of the vanguard of LTE devices. A report said the latest Nexus phone is likely to be 4G LTE compatible, but didn't specify a carrier or a manufacturer.
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    Being the developer of a photo app for the iPhone has never been a particular easy fate. So much competition exists within the App Store it can be hard to stand out. But I suspect that developers from Instagram, Hipstamatic, Photogram, and others never expected to find competition from outside of the App Store.
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    Microsoft (MSFT) has received clearance from U.S. antitrust regulators for its proposed purchase of Internet telephony company Skype.
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    Japanese video game developer Sega Corp said on Sunday that information belonging to 1.3 million customers has been stolen from its database, the latest in a rash of global cyber attacks against video game companies.
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    Facebook's U.S. advertising revenue will total roughly $2.2 billion in 2011, displacing Yahoo Inc to collect the biggest slice of online display advertising dollars, according to a new study.
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    Google plans to digitize a quarter of a million books from the British Library's collections covering a period from the French Revolution to the end of slavery as part of its ambitious books project.
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    Hi sarath,

    Greetings,

    I am trying to delete a file with 'E4' Command,But I am not able to delete it,I am getting 6985 Error(condition of use not satisfied),The command I am using is 00 E4 00 00 02 60 00,Could u plz help me in this regards.

    Thanks in Advance
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    how to create CheckBoxes in gridview ..... it means where to create like in columns tag or asp:databound field. pl send me the answer.......
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    Sir, I want to use shortcut keys like windows programming in Asp.Net(C#) . Like if i want to click on a link "Home" then i would press (Ctrl+h) or F1/F2/F3 anykey. i think its the metter of...
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    when i am adding the items to hasthable and trying to display in the same order which i have added.It doesn't sho up in the same order is there any method which we can display the items in the same ...
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    hello sir, i want to add flv streaming video in my web page. (Not from youtube.com etc) i have convert video to flv. but can not add it on web page ... Please guide me
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    we can encrypt connection string using aspnet_regiis -pef connectionString "C:...." and Decrypt using : aspnet_regiis -pdf connectionString "C:...." if i have encrypted my connection st...
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    my Question is how to tracking the vehicle in India map using C# programming Hint: I having Raw GPS Data
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    sir may name is nilesh gupta and i have developing a web site but the problem is hindi text font that is the hindi font not support the web page plz help me thanks
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    Mozilla is working on a project that will add PDF rendering to Firefox using HTML5 and JavaScript, eliminating the need for users to run Adobe's own plug-in.
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    Easy to configure, simple to use and solves the complexity of payroll processing Reduces workload on MIS, Simplifies computation and brings complete Statutory Contribution / Deduction calculation with required returns and forms as per the statutory requirement.  Structured as per requirements, Hassle Free compliance, Maintains statutory requirements and Good Governance Prac...
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    Jon S Von Tetzchner and a colleague, Geir Ivarsoy, developed a Web browser while working for Telenor in 1994. In 1995, they founded Opera Software and launched their first public browser, Opera, a year later. It is the oldest-surviving browser company. The 42-year-old Von Tetzchner may have stepped down as CEO of Opera Software in January, but is still actively involved with the firm’s po...
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    Sending out emails is a common requirement in every web application. This could range from a simple Contact Us form, to daily digest email to all subscribers. In ASP.NET, System.Net.Mail namespace provides all necessary functions of sending emails. In earlier versions of .NET, System.Web.Mail, but the new namespace provides extensive and powerful interfaces for sending out emai...
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    When you want to save logs on your website for any events like visits, errors, etc., it would be good if you add the browser name also. In case of errors, this information will do great for you, because client-side script errors and malfunctions might be browser dependant, and you would have to really debug them on those browsers in some cases.
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    Google App Engine provides a Blobstore API that allows our app to serve 'Blobs' that are much larger in size say between 1 mb and 2 gb.Blobs are created by uploading a file through an HTTP request using a html form .When the form is submitted, the Google App Engine Blobstore creates a blob from the uploaded file returning the blob key that can be used to process the blob
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    Verizon Wireless is releasing the third smartphone to take advantage of its faster fourth-generation data network on Thursday
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    Microsoft is believed to prepare a major update to its Windows Phone 7 in order to catch up to rivals in web browsing most of all. Codenamed “Mango”, the update is supposed to add HTML5 to the browser and to add support for Silverlight, probably as a plugin. The current update would be larger than the other one or two updates expected to appear early in 2011. it would be somehow equ...
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     ESA has developed a new software that makes the entire library of images from the SOHO solar and heliospheric observatory available online to everyone, everywhere at anytime.
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    With App Engine, we can build web applications using the Python/Java programming language, and  our application runs on Google's scalable infrastructure, and uses large-scale persistent storage and services. The Python Runtime Environment App Engine includes a simple web application framework, called webapp, to make it easy to get started.App Engine supports Python 2.5. Our app take adva...
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    Sir, recently i am working on a website in which hindi language is also used. Now when i open the website in Mozilla firefox, its looking well but in Internet Explorer, the hindi font is creating pro...
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    I need to display serial numbers in the leftmost column of a gridview. Could you please suggest me how to get this done?
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    Hi, I have a format phone number like this : 443XXXXXXXX. I want to implement this to my program so the people who register have a default format like that. can anyone help me how to generate this...
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    query string in general transfer the data in plan text format..... i want to know the proof how it is going in plain text format how can we see and confirm it........ please send me reply sir....
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    Adobe today is releasing its Flash Builder 4.5.1 development tool and Flex 4.5.1 framework, boosting mobile application development support.
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    Google (GOOG) has released an experimental extension for its Chrome browser that developers can use to scan their Web applications and flag code that could make them vulnerable to malware attacks.
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    Hi Why do i need META Tags, anyways, till the search engine is able to cache the contents of my page and throw it to the user the moment he searches for something. How many META Tags can i have i...
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    how to use database hosted in another domain.Suppose I am the admin i have all the FTP details of both the domain how to access the database of one domain from another dsomain
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    Write a program to generate list of 10000 random numbers. Numbers should be unique & between & 10000.... The problem is i got the list of 10000 numbers but could not avoid redundancy... can u plea...
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    We are experts in Cloud Computing Technologies. We can assist you to build high scalable business applications using Amazon Web Services (Amazon EC2, Amazon S3, Amazon SES, SNS, CloudFront), Windows Azure Platforms - Windows Azure and SQL Server Azure, Google App Engine using Python and Django Framework. We are Expert Programming Consultants available at affordable rates per hour. We work on several technologies - .NET, Python, Google App Engine, PHP, Windows Azure, Amazon Web Services ...