G.2. Basic XHTML Tables

Tables are used to organize data in rows and columns. Our first example (Fig. G.1) creates a table with six rows and two columns to display price information for fruit.

Figure G.1. XHTML table.

 1  "1.0"?>
 2  "-//W3C//DTD XHTML 1.1//EN"
 3 "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
 4
 5 
 6 
 7
 8 
"http://www.w3.org/1999/xhtml"> 9 10 A simple XHTML table 11 12 13 14 15 16 "1"width ="40%"17 summary = "This table provides information about 18 the price of fruit"> 192021222324252627 28 29 30 313233343536 37 38 39 404142434445 46 47 48 49505152535455565758596061 6263646566
Price of Fruit
Fruit Price
Total $3.75
Apple $0.25
Orange $0.50
Banana $1.00
Pineapple $2.00
67 68 69

Tables are defined with the table element (lines 1666). Lines 1618 specify the start tag for a table element that has several attributes. The border attribute specifies the table's border width in pixels. To create a table without a border, set border to "0". This example assigns attribute width the value "40%" to set the table's width to 40 percent of the browser's width. A developer can also set attribute width to a specified number of pixels. Try resizing the browser window to see how the width of the window affects the width of the table.

As its name implies, attribute summary (lines 1718) describes the table's contents. Speech devices use this attribute to make the table more accessible to users with visual impairments. The caption element (line 22) describes the table's content and helps textbased browsers interpret the table data. Text inside the tag is rendered above the table by most browsers. Attribute summary and element caption are two of the many XHTML features that make Web pages more accessible to users with disabilities.

A table has three distinct sectionshead, body and foot. The head section (or header cell) is defined with a thead element (lines 2631), which contains header information such as column names. Each tr element (lines 2730) defines an individual table row. The columns in the head section are defined with th elements. Most browsers center text formatted by th (table header column) elements and display them in bold. Table header elements are nested inside table row elements.

The foot section (lines 3540) is defined with a tfoot (table foot) element. The text placed in the footer commonly includes calculation results and footnotes. Like other sections, the foot section can contain table rows, and each row can contain columns.

The body section, or table body, contains the table's primary data. The table body (lines 4464) is defined in a tbody element. In the body, each tr element specifies one row. Data cells contain individual pieces of data and are defined with td (table data) elements within each row.

G 3 Intermediate XHTML Tables and Formatting

Preface

Index

    Introduction to Computers, the Internet and Visual C#

    Introduction to the Visual C# 2005 Express Edition IDE

    Introduction to C# Applications

    Introduction to Classes and Objects

    Control Statements: Part 1

    Control Statements: Part 2

    Methods: A Deeper Look

    Arrays

    Classes and Objects: A Deeper Look

    Object-Oriented Programming: Inheritance

    Polymorphism, Interfaces & Operator Overloading

    Exception Handling

    Graphical User Interface Concepts: Part 1

    Graphical User Interface Concepts: Part 2

    Multithreading

    Strings, Characters and Regular Expressions

    Graphics and Multimedia

    Files and Streams

    Extensible Markup Language (XML)

    Database, SQL and ADO.NET

    ASP.NET 2.0, Web Forms and Web Controls

    Web Services

    Networking: Streams-Based Sockets and Datagrams

    Searching and Sorting

    Data Structures

    Generics

    Collections

    Appendix A. Operator Precedence Chart

    Appendix B. Number Systems

    Appendix C. Using the Visual Studio 2005 Debugger

    Appendix D. ASCII Character Set

    Appendix E. Unicode®

    Appendix F. Introduction to XHTML: Part 1

    Appendix G. Introduction to XHTML: Part 2

    Appendix H. HTML/XHTML Special Characters

    Appendix I. HTML/XHTML Colors

    Appendix J. ATM Case Study Code

    Appendix K. UML 2: Additional Diagram Types

    Appendix L. Simple Types

    Index



    Visual C# How to Program
    Visual C# 2005 How to Program (2nd Edition)
    ISBN: 0131525239
    EAN: 2147483647
    Year: 2004
    Pages: 600

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