is an option for cells that specifies an expression to be dynamically updated whenever the cell is visible on screen.


CellDynamicExpression
is an option for cells that specifies an expression to be dynamically updated whenever the cell is visible on screen.
Details

- CellDynamicExpression->Dynamic[expr] causes the expression to be tracked and updated in the usual way, except that expr is not displayed anywhere.
- CellDynamicExpression may not trigger dynamic updates if the cell is scrolled off screen or inside a closed cell group.
- The CellDynamicExpression dynamic is guaranteed to be resolved before any Dynamic objects that are in the cell's contents.
Examples
open all close allProperties & Relations (4)
CellDynamicExpression always resolves before any Dynamic objects in the cell's content:
Dynamic can be omitted from the right-hand side if :> is used:
Dynamic can be omitted from the right-hand side of CurrentValue if := is used:
As with any other Dynamic expression, Refresh may be used to control reevaluation:
History
Text
Wolfram Research (2010), CellDynamicExpression, Wolfram Language function, https://reference.wolfram.com/language/ref/CellDynamicExpression.html.
CMS
Wolfram Language. 2010. "CellDynamicExpression." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/CellDynamicExpression.html.
APA
Wolfram Language. (2010). CellDynamicExpression. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/CellDynamicExpression.html
BibTeX
@misc{reference.wolfram_2025_celldynamicexpression, author="Wolfram Research", title="{CellDynamicExpression}", year="2010", howpublished="\url{https://reference.wolfram.com/language/ref/CellDynamicExpression.html}", note=[Accessed: 15-August-2025]}
BibLaTeX
@online{reference.wolfram_2025_celldynamicexpression, organization={Wolfram Research}, title={CellDynamicExpression}, year={2010}, url={https://reference.wolfram.com/language/ref/CellDynamicExpression.html}, note=[Accessed: 15-August-2025]}