Editing DPL3/Parameters: Controlling output format (section)

===columns===

{{DPL parameter
 |name   = columns
 |purpose= Define a column layout for the output.
}}

Syntax:

{{DPL syntax|columns=''ncols''}}

'''Example:'''

<pre><nowiki>
<dpl></nowiki>
  category	  = Help
  nottitlematch	  = %DPL%
  includesubpages = false
  columns	  = 3
  rowcolformat	  = width=100%
  count		  = 6
</dpl>
</pre>

Simply displays non-DPL articles and subcategories in [[:Category:Help]] in 3 columns ({{dpl3|rowcolformat}} is used to make the table width 100%).
<dpl>
  category		  = Help
  nottitlematch	  = %DPL%
  includesubpages = false
  columns		  = 3
  rowcolformat	  = width=100%
  count			  = 6
</dpl>
Note: {{dpl3|columns}} is currently bugged (possible combatibility issue between [[mw:MediaWiki 1.31|Mediawiki 1.31.2]] and DPL3 v3.3.3) <ref name="columns bug"/>.<br/>
For a 3-column dpl, css can be used to achieve the desired results:
<pre><nowiki>
<div style="-webkit-column-count:3;column-count:3;">
<dpl>
  category	  = Help
  nottitlematch	  = %DPL%
  includesubpages = false
  columns	  = 3
  rowcolformat	  = width=100%
  count		  = 6
</dpl></div></nowiki></pre>
<div style="-webkit-column-count:3;column-count:3;">
<dpl>
  category		  = Help
  nottitlematch	  = %DPL%
  includesubpages = false
  columns		  = 3
  rowcolformat	  = width=100%
  count			  = 6
</dpl></div>

'''More complex example:'''

In {{dpl3|mode|=userformat}} the outer tags from {{dpl3|listseparators}} will be repeated for each column.

<pre><nowiki>
<div style="-webkit-column-count:3;column-count:3;">
<dpl></nowiki>
  category	  = Help
  nottitlematch	  = %DPL%
  includesubpages = false
  addpagesize	  = true
  ordermethod	  = size
  listseparators  = {|class=sortablewikitable id=2\n!Rank\n!Article\n!Bytes\n|-,\n|%NR%.\n|[[%PAGE%]]\n|style="text-align:right;"|%SIZE%,\n|-,\n|}
  columns	  = 2
  count		  = 6
</dpl></div>
</pre>

This output contains a list of the largest non-DPL articles in [[:Category:Help]]. Each column consists of a table which has itself three columns: rank, article name and size.

<div style="-webkit-column-count:3;column-count:3;">
<dpl>
  category		  = Help
  nottitlematch	  = %DPL%
  includesubpages = false
  addpagesize	  = true
  ordermethod	  = size
  listseparators  = {|class=sortablewikitable id=2\n!Rank\n!Article\n!Bytes\n|-,\n|%NR%.\n|[[%PAGE%]]\n|style="text-align:right;"|%SIZE%,\n|-,\n|}
  columns		  = 2
  count			  = 6
</dpl></div>