Help:Extension:InputBox

As taken directly from the extension page on MediaWiki:

Example
Box for starting a new article.

{|

Result

 * }

General syntax
InputBoxes are constructed like this:

The type parameter is mandatory. All other parameters are optional.

Box types
The default location of the submit button(s) is below the input box. The submit button can be moved to the right by using the line break parameter to eliminate the line break between the input box and the submit button: break=no

Having the submit button to the right is useful for search boxes when search suggestions would otherwise cover up a search button below the search box.

For type=search2 the default location for the search button is to the right. Currently, it does not seem to be possible to add other parameters to this type of input box. This search box searches the entire wiki that it is placed on.

Parameters
Applying create &#160;to an existing page simply gives the edit page. In that case preload is ignored. Applying comment &#160;for a new page works.

The texts taken from the MediaWiki: namespace are of course only examples, any existing page can be used for editintro or preload. Unfortunately preload does not yet work for the Special:Upload summary.

Alignment enhancement
If there is a need to define alignment each time an input box is used, one option is to just remove the div tag from the input box HTML and specify the div when posting the InputBox. A more versatile option would be to add the following code which allows changing the alignment in the options. By installing this modified copy of the code then you can specify align=left, align=center</tt>, or align=right</tt>. Caution! The linked code is from Feb.2007. There have been bug fixes and feature additions to both MediaWiki and InputBox since that time. You may need to test for compatibility and functionality.

Using InputBox in a template
In order to create many similar input boxes, InputBox can be used in a template. However, passing template parameters to InputBox parameters only works if the  </tt> tag is written as   </tt> inside the template.

The following example is a template to create a new wiki page from a named template:

When instantiating the template, the first parameter gives the item that is created (default: article</tt>) as spelled out in the button, the second parameter gives the name of the template used to create the item (default: Template:Article</tt>).

E.g., the code for an input box to create a new project from a project template might look like this: