D


Data binding

Assigning the property value of a control to the value of a column in a data record.

Data reader

A data object that fetches one record at a time from a result set generated by a command object.

Data type

The internal memory format in which a value is stored. For efficiency, Visual Basic .NET uses different formats for different types of information; for example, integers are stored differently than real numbers, which are in turn stored differently than alphabetic characters. In some cases, you can cast a value from one data type to another if needed in your program.

Data-binding expression

A small piece of code that defines how to extract information from a data record and assign it to a control s property.

Dataset

A data object maintained in memory that contains a copy of data from a data source. Storing data in a dataset provides you with a way to move between records without having to get individual records from the database.

Declarative (tags)

Defining controls and other elements on an ASP.NET Web page using HTML-like syntax. In declarative syntax, control properties are defined using attributes.

Declare (variable)

To create a variable by specifying its name and data type. You must always declare a variable before attempting to use it.

Delimiter

A character or set of characters that separates one part of a string from another.

Deploy

To publish (copy) an application to the location where it will be used. If you have a hosting site, you must deploy your Web pages and database information to the hosting site s server.

Disconnected

Not in continual contact. A browser and a Web server are disconnected in that they establish and maintain contact only long enough to process a Web page request. To process another page, or the same page again, the browser and Web server have to reinitiate contact.

Dynamic DNS service

A Web-based service that maps your dynamic IP address to a fixed domain name so that users can find your computer reliably. Dynamic DNS services typically run in the background on your computer, and when your Internet Service Provider (ISP) assigns you a new dynamic IP address, the dynamic DNS service uploads the new IP address to the service s server.

Dynamic IP address

An Internet Protocol (IP) address that is assigned to your computer by your ISP when you log on, in contrast to having a fixed, or static, IP. If your ISP assigns you a dynamic IP, you cannot reliably use the IP as the address of your Web server (for example, http://10.231.40.54/yourapplication). In that case, an alternative is to use a dynamic DNS service.




Microsoft ASP. NET Web Matrix Starter Kit
Microsoft ASP.NET Web Matrix Starter Kit (Bpg-Other)
ISBN: 0735618569
EAN: 2147483647
Year: 2003
Pages: 169
Authors: Mike Pope
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