نمایش مبدأ برای الگو:پیوند رده در صورت وجود ۲/توضیحات

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This is a simple helper template, to be used in other templates.  It displays a link to a category if that category exists; otherwise it just displays plaintext in grey, to reduce the visual prominence of the unlinked text.

Optional display text may be added as a second parameter.

== Purpose ==
This template is a variant of {{Tl|LinkCatIfExists}}, which does no greying.

The greying was designed to improve the clarity of category header templates such as {{tl|EstcatContinentCentury}} on pages such as [[:رده:بنیان‌گذاری‌ها در سده ۱۱ (میلادی) در آسیا]].

== Usage ==

{{Tlx|LinkCatIfExists2|CategoryName|OptionalDisplayText}}

;Simple usage: {{Tlx|LinkCatIfExists2|CategoryName}}
:Examples:
:* {{Tlx|LinkCatIfExists2|A non-existent category}} → {{LinkCatIfExists2|A non-existent category}}
:* {{Tlx|LinkCatIfExists2|United States}} → {{LinkCatIfExists2|United States}}

;With optional display text: {{Tlx|LinkCatIfExists2|CategoryName|DisplayText}}
:Examples:
:* {{Tlx|LinkCatIfExists2|A non-existent category|Foo}} → {{LinkCatIfExists2|A non-existent category|Foo}}
:* {{Tlx|LinkCatIfExists2|United States|USA}} → {{LinkCatIfExists2|United States|USA}}

==See also==
* [[الگو:LinkCatIfExists]] — same as this, but without greying
* [[الگو:Category see also if exists]]
* [[الگو:Cat in use]], allows checking of whether category is populated
* [[الگو:اگر پیوند وجود دارد]]

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[[رده:الگو:مفید ویکی‌پدیا]]
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