The following parameters that are all optional, may also be used:
type
Adds a note as to which type of template the category (but not necessarily its subcategories) is meant to contain, e.g.
{{template category |type=navbox}}
Currently, setting type to one of eleven values produces a preset note. The values are:
ambox • campaignbox • conversion • external link • formatting function • infobox • meta • navbox • stub • timeline • userbox
If type is set to something other than one of these values, the default message "The pages listed in this category are meant be type templates." appears.
topic
Adds the default description "Templates relating to topic.", where topic is usually a wikilink to the main article associated with the category (e.g. United States for the category Template:C). See Example 1 below.
description
Use this if a customised description is needed instead of (or, if topic also used, to follow) the default description above. See Example 2 below.
portal
Adds a {{portal}}-style link to the right of any topic and/or description text. See Example 3 below
help
Use this to provide customised instructions rather than the default explanation as to how to add a template to the category.
container
Use this if the category is a container category by adding |container=yes to the template.
If subcategories exist for other types of templates (e.g. infoboxes) that relate to this topic, they should appear at the start of the subcategories listing immediately below this messagebox.
To include a template in this category, add <noinclude>[[Template:Template category/doc]]</noinclude> to the end of the template code, making sure it starts on the same line as the last character of the code.
{{template category
|type = navbox
|topic = [[China]]
|description = <br/><small>For templates relating specifically to the [[People's Republic of China|People's Republic of China (PRC)]] or the current [[Republic of China|Republic of China (ROC, "Taiwan")]], see, respectively, {{c|People's Republic of China templates}} and {{c|Republic of China (Taiwan) templates}}.</small>
}}
If subcategories exist for other types of templates (e.g. infoboxes) that relate to this topic, they should appear at the start of the subcategories listing immediately below this messagebox.
To include a template in this category, add <noinclude>[[Template:Template category/doc]]</noinclude> to the end of the template code, making sure it starts on the same line as the last character of the code.
To include a template in this category, add <noinclude>[[Template:Template category/doc]]</noinclude> to the end of the template code, making sure it starts on the same line as the last character of the code.
{{template category
|type = external link
|description = '''Templates aiding the creation and formatting of external links to [[topic]] databases.'''
}}
Templates aiding the creation and formatting of external links to topic databases.
The pages listed in this category are meant to be templates providing external links.
To include a template in this category, add <noinclude>[[Template:Template category/doc]]</noinclude> to the end of the template code, making sure it starts on the same line as the last character of the code.