Getting Started with ASP.NET Classes

Written by Balaji

Getting Started with ASP.NET Classes

The class is an object-oriented programming term to refer to a data structure that describes an object or a data member. The .Net Framework has an exclusive set of class libraries such as data access, XML support, directory services, regular expression, and queuing support.

The data access class library provides data access ASP.NET Classes to connect to SQL Server or any OLEDB provider. The XML support class library has XML Classesrepparttar go beyondrepparttar 133451 capability of MSXML. The directory services library is used to access Active Directory/LDAP using ADSI. The regular expression library supports allrepparttar 133452 above mentions ASP.NET Classes any more than that it also supports Perl 5.

Allrepparttar 133453 above mentioned class libraries userepparttar 133454 CLR base class libraries for common functionality. These base class libraries can be divided into six categories:

Collections: Used to preserve a collection of values or objects in memory. The three commonly used collections ASP.NET Classes are ArrayList, HashTables, and SortedList. The System.Collections namespace is used to derive collections ASP.NET Classes.

Thread Support: Used to provide fast, efficient, and multi-threaded applications. It use System.Threading namespace.

"The Beginner Buyer's Guide To Digital Cameras, Or The Ins And Outs Of Megapixels."

Written by Warren Lynch

The Beginners buyer's guide to digital cameras or The Ins and Outs of Megapixels.

By Warren Lynch

The most important part of buying a digital camera is making sure thatrepparttar one you select meets all of your needs.

Digital Camera 101

Better digital cameras uses a chip called a "Charged Coupled Device" (CCD) instead of film. Light entersrepparttar 133450 camera, throughrepparttar 133451 open shutter, and strikesrepparttar 133452 CCD where it is converted to digital data before being stored inrepparttar 133453 camera's memory.

While that isrepparttar 133454 simple description, things can get pretty complicated from there.

Megapixels & Resolution

Resolution is a measure of how many pixels are used to make a digital copy of an image. Pixels are tiny dots of light that make up a digital image.

The quality of a digital camera's image is usually measured in 'Megapixels' where each megapixel represents one million pixels.

Here's how to determine how many megapixels you'll need depending uponrepparttar 133455 type of photos you will be taking and what you intend to do with them.

1 megapixel

Almost obsolete, you might still find these in cell phones, PDAs, and desktop "web" cameras. They're OK if you only intend to email pictures to other people and those people aren't going to be printing them.

1.1 to 2 megapixels

Only slightly better thanrepparttar 133456 1.0, this resolution is OK for an average 4x6 snapshot, but it isn't going to be a production quality image.

2.1 to 3 megapixels

This isrepparttar 133457 beginning ofrepparttar 133458 decent camera range. You get very good 4x6 images and reasonably good 5x7 images. These cameras are low cost and provide a good platform for beginners.

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