XML Volume Practical Tips (4): Menu Linkage
Motivation:
Now let's do a small example of applying XML in IE: solving the linkage problem of double drop-down menus. Perhaps the most common example is to select a province and then change the city options, so let's try to use XML to complete it.
I have implemented some of the functions introduced before directly using XML+XSL files. You may not be very familiar with its usage, so I will use HMTL+XML this time, hoping to make everyone more familiar with it. Clear understanding - "XML can be so simple!":)
Materials:
XML Volume Select Menu Linkage
There are 2 files: Citys.xml and CitySelect.htm
Function:
After selecting a province, the corresponding city can be automatically displayed, which is convenient for users, effectively improves data interaction, and makes your page more colorful.
Effect:
Browse here
Code:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 |
|
CitySelect.htm
Custom function: ChooseState
(Read the province in XML data name and added to SelState's drop-down list)
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 |
|
Custom function: ChooseCity
(Read the corresponding city in the XML data based on the currently selected province name name and added to SelCity's drop-down list)
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 |
|
Form source code
1 2 3 4 5 6 7 8 |
|
Postscript:
Just started learning When it comes to XML, I also have the same confusion as everyone else - "I have learned XML, but how should I use this XML?" This problem has hindered me for a long, long time...
Because e-commerce and software development are my expertise, I thought it would be better to start with what I am most familiar with. So I implemented some of the most commonly used functions in website construction in XML. You can do it too!
The above is the practical tips for XML volume (4): menu linkage content. For more related content, please pay attention to the PHP Chinese website (www.php.cn)!

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics











Can XML files be opened with PPT? XML, Extensible Markup Language (Extensible Markup Language), is a universal markup language that is widely used in data exchange and data storage. Compared with HTML, XML is more flexible and can define its own tags and data structures, making the storage and exchange of data more convenient and unified. PPT, or PowerPoint, is a software developed by Microsoft for creating presentations. It provides a comprehensive way of

Convert XML data in Python to CSV format XML (ExtensibleMarkupLanguage) is an extensible markup language commonly used for data storage and transmission. CSV (CommaSeparatedValues) is a comma-delimited text file format commonly used for data import and export. When processing data, sometimes it is necessary to convert XML data to CSV format for easy analysis and processing. Python is a powerful

Implementing filtering and sorting of XML data using Python Introduction: XML is a commonly used data exchange format that stores data in the form of tags and attributes. When processing XML data, we often need to filter and sort the data. Python provides many useful tools and libraries to process XML data. This article will introduce how to use Python to filter and sort XML data. Reading the XML file Before we begin, we need to read the XML file. Python has many XML processing libraries,

Handling Errors and Exceptions in XML Using Python XML is a commonly used data format used to store and represent structured data. When we use Python to process XML, sometimes we may encounter some errors and exceptions. In this article, I will introduce how to use Python to handle errors and exceptions in XML, and provide some sample code for reference. Use try-except statement to catch XML parsing errors When we use Python to parse XML, sometimes we may encounter some

Python implements conversion between XML and JSON Introduction: In the daily development process, we often need to convert data between different formats. XML and JSON are common data exchange formats. In Python, we can use various libraries to convert between XML and JSON. This article will introduce several commonly used methods, with code examples. 1. To convert XML to JSON in Python, we can use the xml.etree.ElementTree module

How to handle XML and JSON data formats in C# development requires specific code examples. In modern software development, XML and JSON are two widely used data formats. XML (Extensible Markup Language) is a markup language used to store and transmit data, while JSON (JavaScript Object Notation) is a lightweight data exchange format. In C# development, we often need to process and operate XML and JSON data. This article will focus on how to use C# to process these two data formats, and attach

Python parses special characters and escape sequences in XML XML (eXtensibleMarkupLanguage) is a commonly used data exchange format used to transfer and store data between different systems. When processing XML files, you often encounter situations that contain special characters and escape sequences, which may cause parsing errors or misinterpretation of the data. Therefore, when parsing XML files using Python, we need to understand how to handle these special characters and escape sequences. 1. Special characters and

This tutorial demonstrates how to efficiently process XML documents using PHP. XML (eXtensible Markup Language) is a versatile text-based markup language designed for both human readability and machine parsing. It's commonly used for data storage an
