Difference between revisions of "Help:Tables"

Latest revision as of 07:24, 11 January 2019

Tables may be created in Knowledge Management systempages. As a general rule, it is best to avoid using a table unless you need one. Table markup often complicates page editing.

Knowledge Management systemtable markup summary

• The above marks must start on a new line except the double || and !! for optionally adding consecutive cells to a line. However, blank spaces at the beginning of a line are ignored.
• HTML attributes. Each mark, except table end, optionally accepts one or more HTML attributes. Attributes must be on the same line as the mark. Separate attributes from each other with a single space.
  • Cells and caption (| or ||, ! or !!, and |+) hold content. So separate any attributes from content with a single pipe (|). Cell content may follow on same line or on following lines.
  • Table and row marks ({| and |-) do not directly hold content. Do not add pipe (|) after their optional attributes. If you erroneously add a pipe after attributes for the table mark or row mark the parser will delete it and your final attribute if it was touching the erroneous pipe!
• Content may (a) follow its cell mark on the same line after any optional HTML attributes or (b) on lines below the cell mark. Content that uses Knowledge Management systemmarkup that itself needs to start on a new line, such as lists, headings, or nested tables, must be on its own new line.
  • Pipe character as content. To insert a pipe (|) character into a table, use the <nowiki>|</nowiki> escaping markup.

Basics

The following table lacks borders and good spacing but shows the simplest Knowledge Management systemmarkup table structure.

{|
|Orange
|Apple
|-
|Bread
|Pie
|-
|Butter
|Ice cream 
|}

The cells in the same row can be listed on one line separated by || (two pipe symbols). If the text in the cell should contain a line break, use <br/> instead.

{|
|Orange||Apple||more
|-
|Bread||Pie||more
|-
|Butter||Ice<br/>cream||and<br/>more
|}

Extra spaces within cells in the Knowledge Management systemmarkup, as in the Knowledge Management systemmarkup below, do not affect the actual table rendering.

{|
|  Orange || Apple || more
|-
|   Bread || Pie || more
|-
|   Butter || Ice cream || and more
|}

You can have longer text or more complex Knowledge Management systemsyntax inside table cells, too:

{|
|Lorem ipsum dolor sit amet, 
consetetur sadipscing elitr, 
sed diam nonumy eirmod tempor invidunt
ut labore et dolore magna aliquyam erat, 
sed diam voluptua. 

At vero eos et accusam et justo duo dolores
et ea rebum. Stet clita kasd gubergren,
no sea takimata sanctus est Lorem ipsum
dolor sit amet. 
|
* Lorem ipsum dolor sit amet
* consetetur sadipscing elitr
* sed diam nonumy eirmod tempor invidunt
|}

                           et ea rebum. Stet clita kasd gubergren,
                           no sea takimata sanctus est Lorem ipsum
                           dolor sit amet.

Table headers

Table headers can be created by using "!" (exclamation mark) instead of "|" (pipe symbol). Headers usually show up bold and centered by default.

{|
! style="text-align:left;"| Item
! Amount
! Cost
|-
|Orange
|10
|7.00
|-
|Bread
|4
|3.00
|-
|Butter
|1
|5.00
|-
!Total
|
|15.00
|}

Note: When using attributes as in the heading 'Item' a vertical bar '|' is used for separation. Not an exclamation character '!'.

Caption

A table caption can be added to the top of any table as follows.

{|
|+Food complements
|-
|Orange
|Apple
|-
|Bread
|Pie
|-
|Butter
|Ice cream 
|}

class="wikitable"

Basic styling (light gray background, borders, padding and align left) can be achieved by adding class="wikitable".

{| class="wikitable"
|+Food complements
|-
|Orange
|Apple
|-
|Bread
|Pie
|-
|Butter
|Ice cream 
|}

HTML colspan and rowspan

You can use HTML colspan and rowspan attributes on cells for advanced layout.

{| class="wikitable"
!colspan="6"|Shopping List
|-
|rowspan="2"|Bread & Butter
|Pie
|Buns
|Danish
|colspan="2"|Croissant
|-
|Cheese
|colspan="2"|Ice cream
|Butter
|Yogurt
|}

HTML attributes

You can add HTML attributes to tables. For the authoritative source on HTML attributes, see the W3C's HTML Specification page on tables.

Attributes on tables

Placing attributes after the table start tag ({|) applies attributes to the entire table.

{| class="wikitable" style="text-align: center; color: green;"
|Orange
|Apple
|12,333.00
|-
|Bread
|Pie
|500.00
|-
|Butter
|Ice cream
|1.00
|}

Attributes on cells

You can put attributes on individual cells. For example, numbers may look better aligned right.

{| class="wikitable"
| Orange
| Apple
| style="text-align:right;" | 12,333.00
|-
| Bread
| Pie
| style="text-align:right;" | 500.00
|-
| Butter
| Ice cream
| style="text-align:right;" | 1.00
|}

You can also use cell attributes when you are listing multiple cells on a single line. Note that the cells are separated by ||, and within each cell the attribute(s) and value are separated by |.

{| class="wikitable"
| Orange || Apple     || style="text-align:right;" | 12,333.00
|-
| Bread || Pie       || style="text-align:right;" | 500.00
|-
| Butter || Ice cream || style="text-align:right;" | 1.00
|}

Attributes on rows

You can put attributes on individual rows, too.

{| class="wikitable"
| Orange
| Apple
| style="text-align:right;"| 12,333.00
|-
| Bread
| Pie
| style="text-align:right;"| 500.00
|- style="font-style: italic; color: green;"
| Butter
| Ice cream
| style="text-align:right;"| 1.00
|}

Simple one-pixel table border

An example of a one-pixel table border:

{| border="1" style="border-collapse:collapse"
| Orange
| Apple
|-
| Bread
| Pie
|}

Border width

If "border-width:" has only one number, it is for all four border sides:

{|style="border-style: solid; border-width: 20px"
|
Hello
|}

If "border-width:" has more than one number, the four numbers are for top, right, bottom, left (REMEMBER this order):

{|style="border-style: solid; border-width: 10px 20px 100px 0"
|
Hello
|}

When there are fewer than 4 values, the value for left takes its default from the value for right, the value for bottom takes its default from the value for top, and the value for right takes its default from the value for top.

Another method to define the widths of the four sides of a cell is to use "border-left", "border-right", "border-top" and "border-bottom":

{|style="border-left:solid 10px black;border-right:solid 20px black;border-top:solid 30px black;border-bottom:solid 40px black;" align="center" 
|
Hello
|}

With HTML attributes and CSS styles

<p?CSS style attributes can be added with or without other HTML attributes. </p>

{| class="wikitable" style="color:green; background-color:#ffffcc;" cellpadding="10"
|Orange
|Apple
|-
|Bread
|Pie
|-
|Butter
|Ice cream 
|}

Padding

{|class=wikitable 
| style="padding:10px;"  | style="padding:10px;" 
|-
| style="padding:50px;"  | style="padding:50px;"<br><br>Specify the padding on '''EACH CELL'''  
|-
| style="padding:100px;"  | style="padding:100px;" 
|}

Attributes

Attributes can be added to the caption and headers as follows.

{| class="wikitable"
|+ style="caption-side:bottom; color:#e76700;"|''Food complements''
|-
|Orange
|Apple
|-
|Bread
|Pie
|-
|Butter
|Ice cream 
|}

Column width

Column width can be added as follows.

You type:

{| style="color: black; background-color: #ffffcc; width: 85%;"
| colspan="2" | This column width is 85% of the screen width (and has a background color)
|-
| style="width: 30%; background-color: white;"|
'''This column is 30% counted from 85% of the screen width'''
| style="width: 70%; background-color: orange;"|
'''This column is 70% counted from 85% of the screen width (and has a background color)'''
|}

You get:

Accessibility of table header cells

Table header cells do not explicitly specify which table data cells they apply to (those on their right on the same row, or those below them on the same column). When the table is rendered in a visual 2D environment, this is usually easy to infer.

However when tables are rendered on non-visual media, you can help the browser to determine which table header cell applies to the description of any selected cell (in order to repeat its content in some accessibility helper) using a scope="row" or scope="col" attribute on table header cells.

   In most cases with simple tables, you'll use scope="col" on all header cells of the first row, and scope="row" on the first cell of the following rows:

{| class="wikitable"
|-
! scope="col"| Item
! scope="col"| Quantity
! scope="col"| Price
|-
! scope="row"| Bread
| 0.3 kg
| $0.65
|-
! scope="row"| Butter
| 0.125 kg
| $1.25
|-
! scope="row" colspan="2"| Total
| $1.90
|}

Alignment

Table alignment

Table alignment is achieved by using CSS. The table alignment is controlled by margins. A fixed margin on one side will make the table to be aligned to that side, if on the opposite side the margin is defined as auto. To have a table center aligned, you should set both margins to auto

For example, a right-aligned table:

{| class="wikitable" style="margin-left: auto; margin-right: 0px;"
| Orange
| Apple
|-
| Bread
| Pie
|-
| Butter
| Ice cream 
|}

And a center-aligned table:

{| class="wikitable" style="margin: auto;"
| Orange
| Apple
|-
| Bread
| Pie
|-
| Butter
| Ice cream 
|}

Table floating around text

If you align a table to the right or the left side of the page, the text that comes after the table starts at the end of it, leaving an empty space around the table. You can make the text to be wrapped around the table by making the table to float around the text instead of just aligning it. This can be achieved using the float CSS attribute, which can specify where the table floats to the right side or to the left. When using float, margins doesn't control table alignment and can be used to specify the margin between the table and the surrounding text.

{| class="wikitable" style="float:right; margin-left: 10px;"
| Orange
| Apple
|-
| Bread
| Pie
|-
| Butter
| Ice cream 
|}

Lorem ipsum dolor sit amet, consectetuer adipiscing 
elit, sed diam nonummy nibh euismod tincidunt ut 
laoreet dolore magna aliquam erat volutpat. Ut wisi 
enim ad minim veniam, quis nostrud exerci tation 
ullamcorper suscipit lobortis nisl ut aliquip ex ea 
commodo consequat. Duis autem vel eum iriure dolor 
in hendrerit in vulputate velit esse molestie consequat, 
vel illum dolore eu feugiat nulla facilisis at vero 
eros et accumsan et iusto odio dignissim qui blandit 
praesent luptatum zzril delenit augue duis dolore te 
feugait nulla facilisi.

Cell contents alignment

The alignment of cell contents can be controlled with 2 different CSS properties: text-align and vertical-align. text-align can be specified at the table, row or individual cells, while vertical-align only can be specified at individual rows or cells.

{| class="wikitable"
|- style="vertical-align:top;"
| style="height:100px; width:100px; text-align:left;" | A
| style="height:100px; width:100px; text-align:center;" | B
| style="height:100px; width:100px; text-align:right;" | C
|- style="vertical-align:middle;"
| style="height:100px; width:100px; text-align:left;" | D
| style="height:100px; width:100px; text-align:center;" | E
| style="height:100px; width:100px; text-align:right;" | F
|- style="vertical-align:bottom;"
| style="height:100px; width:100px; text-align:left;" | G
| style="height:100px; width:100px; text-align:center;" | H
| style="height:100px; width:100px; text-align:right;" | I
|}

Caveats

Negative numbers

If you start a cell on a new line with a negative number with a minus sign (or a parameter that evaluates to a negative number), your table can get broken, because the characters |- will be parsed as the Knowledge Management systemmarkup for table row, not table cell. To avoid this, insert a space before the value (| -6) or use in-line cell markup (|| -6).

CSS vs attributes

Table borders specified through CSS rather than the border attribute will render incorrectly in a small subset of text browsers.

Common attributes for columns, column groups and row groups

The Knowledge Management system syntax for tables currently offers no support for specifying common attributes for columns (with the HTML element <col />), column groups (HTML element <colgroup></colgroup>) and row groups (HTML elements <thead></thead>, <tbody></tbody> and <tfoot></tfoot>). Those standard HTML elements are not accepted even in their HTML or XHTML syntax.

All the rows and cells (header or data) of the table are rendered within a single implicit row group (HTML element <tbody></tbody>) without any attributes or styles.

Notes

• Help:Starting a new page
• Help:Moving a page
• Help:Admin deleting and undeleting
• Help:Formating
• Help:Links
• Help:List
• Help:Images
• Help:Tables