Difference between revisions of "Using the core parameter types"
From Joomla! Documentation
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| − | Parameters are one way | + | Parameters are one way that data may be stored for a Joomla! Extension. Each parameter consists of two parts: |
| + | * A simple text string of the form {NAME} = {VALUE}, in which the parameter value is recorded. The strings are usually concatenated into a single string with other parameter values and stored in a table field. | ||
| + | * A form field in the Extension backend that allows a user to enter the parameter value, and which is defined by an XML <code><param></code> element. | ||
| − | Joomla! defines 21 | + | Joomla! defines 21 core parameter types, each of which gives a predefined behaviour and appearance in the back-end. This makes it very easy for developers to implement a range of form data entry types (text boxes, radio buttons, calendar selectors and so on) with a minimum of effort. This behaviour and appearance is determined by the <code>type</code> attribute of the <code><param></code> element. See [[Standard parameter types]] for a complete list and details of each type. |
| − | <noinclude>[[Category:Development]]</noinclude> | + | <noinclude>[[Category:Development]][[Category:Parameters]]</noinclude> |
Revision as of 17:24, 22 November 2011
The "J1.5" namespace is an archived namespace. This page contains information for a Joomla! version which is no longer supported. It exists only as a historical reference, it will not be improved and its content may be incomplete and/or contain broken links.
Parameters are one way that data may be stored for a Joomla! Extension. Each parameter consists of two parts:
- A simple text string of the form {NAME} = {VALUE}, in which the parameter value is recorded. The strings are usually concatenated into a single string with other parameter values and stored in a table field.
- A form field in the Extension backend that allows a user to enter the parameter value, and which is defined by an XML
<param>element.
Joomla! defines 21 core parameter types, each of which gives a predefined behaviour and appearance in the back-end. This makes it very easy for developers to implement a range of form data entry types (text boxes, radio buttons, calendar selectors and so on) with a minimum of effort. This behaviour and appearance is determined by the type attribute of the <param> element. See Standard parameter types for a complete list and details of each type.