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NotebookDynamicExpression
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NotebookDynamicExpression

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is an option for notebooks that specifies an expression to be dynamically updated whenever that notebook is visible.

Details

Examples

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

Make a notebook that prints a message when it is selected:

In[1]:=1
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https://wolfram.com/xid/0mlfau5uk1ua-fpu1mp
Out[1]=1

Properties & Relations  (1)Properties of the function, and connections to other functions

Dynamic can be omitted from the right-hand side if :> is used:

In[1]:=1
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https://wolfram.com/xid/0mlfau5uk1ua-m6ytc
Out[1]=1

Similarly, Dynamic can be omitted from the right-hand side if := is used in CurrentValue:

In[2]:=2
✖
https://wolfram.com/xid/0mlfau5uk1ua-hgvkzn

As with any other Dynamic expression, Refresh may be used to control reevaluation:

In[3]:=3
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https://wolfram.com/xid/0mlfau5uk1ua-ca3f5k
Wolfram Research (2010), NotebookDynamicExpression, Wolfram Language function, https://reference.wolfram.com/language/ref/NotebookDynamicExpression.html.
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Wolfram Research (2010), NotebookDynamicExpression, Wolfram Language function, https://reference.wolfram.com/language/ref/NotebookDynamicExpression.html.

Text

Wolfram Research (2010), NotebookDynamicExpression, Wolfram Language function, https://reference.wolfram.com/language/ref/NotebookDynamicExpression.html.

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Wolfram Research (2010), NotebookDynamicExpression, Wolfram Language function, https://reference.wolfram.com/language/ref/NotebookDynamicExpression.html.

CMS

Wolfram Language. 2010. "NotebookDynamicExpression." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/NotebookDynamicExpression.html.

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Wolfram Language. 2010. "NotebookDynamicExpression." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/NotebookDynamicExpression.html.

APA

Wolfram Language. (2010). NotebookDynamicExpression. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/NotebookDynamicExpression.html

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Wolfram Language. (2010). NotebookDynamicExpression. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/NotebookDynamicExpression.html

BibTeX

@misc{reference.wolfram_2025_notebookdynamicexpression, author="Wolfram Research", title="{NotebookDynamicExpression}", year="2010", howpublished="\url{https://reference.wolfram.com/language/ref/NotebookDynamicExpression.html}", note=[Accessed: 08-July-2025 ]}

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@misc{reference.wolfram_2025_notebookdynamicexpression, author="Wolfram Research", title="{NotebookDynamicExpression}", year="2010", howpublished="\url{https://reference.wolfram.com/language/ref/NotebookDynamicExpression.html}", note=[Accessed: 08-July-2025 ]}

BibLaTeX

@online{reference.wolfram_2025_notebookdynamicexpression, organization={Wolfram Research}, title={NotebookDynamicExpression}, year={2010}, url={https://reference.wolfram.com/language/ref/NotebookDynamicExpression.html}, note=[Accessed: 08-July-2025 ]}

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@online{reference.wolfram_2025_notebookdynamicexpression, organization={Wolfram Research}, title={NotebookDynamicExpression}, year={2010}, url={https://reference.wolfram.com/language/ref/NotebookDynamicExpression.html}, note=[Accessed: 08-July-2025 ]}