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xml, in the root of our component in the backend. The file contains a root
element config, and nested within this is a params tag. In this tag, we define
different parameters, each in its own param tag.
This example defines two parameters, a title and a description (a complete description
of the different parameters and their XML definition is available in the Appendix):



label="Title" description="Title of page" size="30" />
label="Description" rows="5" cols="50" description=
"Description to display at top of page." />


Component Design
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Once we have created the XML file, the next step is to use the file to allow an
administrator to edit the component parameters. Joomla! provides us with an easy
way of doing this.
In the backend, components have a customizable menu bar. There is a special button
we can add to this menu bar, called preferences, which is used to enable editing of
a component's parameters.


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