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This article mainly describes how to connect Flex database rows, the article is very detailed, has a certain reference value, interested friends must read!

Flex applications don't connect directly to a Flex database, so you need to use some type of service to support the use of data. And the *** step of connecting to Flex databases is to generate data that will be used in Flex programs.

How to connect to Flex database

Flex applications don't connect directly to a Flex database, so you need to use some type of service to support the use of data.

The *** step in connecting to Flex databases is to generate data that will be used in Flex programs. In an application with PHP, you will take the following steps:

1. Create a Flex database (such as MySQL).

2. Write a PHP script to connect to the MySQL Flex database and generate data in XML format.

These steps apply equally to data generated on other work platforms (ASP.NET, JSP, etc.).

Connect to external data sources

For XML formatted data generated by PHP, you can use the HTTPService component to request the data, like this:

...

The HTTPService component defines a request ID that you will use to control the URL that provides the data or the binding between the server and the data.

Binding of external data to data-driven control

By binding the data to data-driven control, you can process the result (XML data) of an HTTP Service like this:

mx:columns> mx:DataGrid>

The syntax for data binding in Flex databases is shown in the dataProvider attribute of the data control (in wavy brackets), which contains the HTTPService request ID, lastResult method, and data structure of the XML file. In this example, the data structure of the XML data source looks like this:

MobilePhonename> $199price> item> CarChargername> $34price> item> ...

By setting the dataField property, the item data (name and price) is treated as data for each column in the data raster.

Load data at runtime

You can also load Flex database data at the start of Flex, as shown later, by sending a request to a specific URL in HTTPService:

When you add the creationComplete method to the application tab, the data is loaded at runtime and handed over to data-driven control (in this case, the data raster).

You can also add the HTTPService request to a control event instead of a tag in the program, as shown below:

That's all for "How to connect Flex database rows." Thanks for reading! Hope to share the content to help everyone, more relevant knowledge, welcome to pay attention to the industry information channel!

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