WOLFRAM

Wolfram Language & System Documentation Center
Wolfram Language Home Page »

Opener
✖
Opener

✖
Opener[x]

represents an opener with setting x, displayed as when x is True and when x is False.

✖

takes the setting to be the dynamically updated current value of x, with the value of x being toggled if the opener is clicked.

Details and Options

Examples

open allclose all

Basic Examples  (1)Summary of the most common use cases

Dynamically change a variable:

In[1]:=1
✖
https://wolfram.com/xid/0y8q9a-b0nodt
Out[1]=1

Scope  (1)Survey of the scope of standard use cases

Use Opener with PaneSelector:

In[1]:=1
✖
https://wolfram.com/xid/0y8q9a-c2h8n5
Out[1]=1

Options  (8)Common values & functionality for each option

Appearance  (1)

Change the appearance:

In[1]:=1
✖
https://wolfram.com/xid/0y8q9a-cmh0jw
Out[1]=1
In[2]:=2
✖
https://wolfram.com/xid/0y8q9a-btylwc
Out[2]=2

AutoAction  (2)

By default the opener changes only when you click it:

In[1]:=1
✖
https://wolfram.com/xid/0y8q9a-b9ozvk
Out[1]=1

By setting AutoAction, the opener toggles as the mouse moves over the opener area:

In[1]:=1
✖
https://wolfram.com/xid/0y8q9a-e2msuf
Out[1]=1

Background  (1)

Change the background color:

In[1]:=1
✖
https://wolfram.com/xid/0y8q9a-4xjnp
Out[1]=1

BaselinePosition  (1)

Align with surrounding text:

In[1]:=1
✖
https://wolfram.com/xid/0y8q9a-1dzlo
Out[1]=1

Enabled  (2)

By default Opener is enabled:

In[1]:=1
✖
https://wolfram.com/xid/0y8q9a-buon3j
Out[1]=1

By setting Enabled->False, the opener is disabled but visible in its current state:

In[1]:=1
✖
https://wolfram.com/xid/0y8q9a-d1mv62
Out[1]=1

ImageMargins  (1)

Include margins around the Opener:

In[1]:=1
✖
https://wolfram.com/xid/0y8q9a-empnah
Out[1]=1

Applications  (1)Sample problems that can be solved with this function

Use Opener with PaneSelector for hiding and exposing additional controls:

In[1]:=1
✖
https://wolfram.com/xid/0y8q9a-kvdjgv
Out[1]=1

Properties & Relations  (2)Properties of the function, and connections to other functions

Opener is a special case of Toggler:

In[1]:=1
✖
https://wolfram.com/xid/0y8q9a-bmcu7
In[2]:=2
✖
https://wolfram.com/xid/0y8q9a-injl2b
Out[2]=2
In[3]:=3
✖
https://wolfram.com/xid/0y8q9a-ma921
Out[3]=3

OpenerView is a combination of Opener and PaneSelector:

In[1]:=1
✖
https://wolfram.com/xid/0y8q9a-vww3j
Out[1]=1
In[2]:=2
✖
https://wolfram.com/xid/0y8q9a-d5wp07
Out[2]=2
Wolfram Research (2007), Opener, Wolfram Language function, https://reference.wolfram.com/language/ref/Opener.html.
✖
Wolfram Research (2007), Opener, Wolfram Language function, https://reference.wolfram.com/language/ref/Opener.html.

Text

Wolfram Research (2007), Opener, Wolfram Language function, https://reference.wolfram.com/language/ref/Opener.html.

✖
Wolfram Research (2007), Opener, Wolfram Language function, https://reference.wolfram.com/language/ref/Opener.html.

CMS

Wolfram Language. 2007. "Opener." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/Opener.html.

✖
Wolfram Language. 2007. "Opener." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/Opener.html.

APA

Wolfram Language. (2007). Opener. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/Opener.html

✖
Wolfram Language. (2007). Opener. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/Opener.html

BibTeX

@misc{reference.wolfram_2025_opener, author="Wolfram Research", title="{Opener}", year="2007", howpublished="\url{https://reference.wolfram.com/language/ref/Opener.html}", note=[Accessed: 29-March-2025 ]}

✖
@misc{reference.wolfram_2025_opener, author="Wolfram Research", title="{Opener}", year="2007", howpublished="\url{https://reference.wolfram.com/language/ref/Opener.html}", note=[Accessed: 29-March-2025 ]}

BibLaTeX

@online{reference.wolfram_2025_opener, organization={Wolfram Research}, title={Opener}, year={2007}, url={https://reference.wolfram.com/language/ref/Opener.html}, note=[Accessed: 29-March-2025 ]}

✖
@online{reference.wolfram_2025_opener, organization={Wolfram Research}, title={Opener}, year={2007}, url={https://reference.wolfram.com/language/ref/Opener.html}, note=[Accessed: 29-March-2025 ]}