# Should one call Modified or MarkDirty on plugin?

**URL:** https://discourse.paraview.org/t/should-one-call-modified-or-markdirty-on-plugin/14318
**Category:** Development
**Created:** [April 2, 2024, 12:59pm UTC](https://discourse.paraview.org/t/should-one-call-modified-or-markdirty-on-plugin/14318 "2024-04-02T12:59:53Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![joint](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/j/dc4da7/32.png) [@joint](https://discourse.paraview.org/u/joint)
#### Post date: [April 2, 2024, 12:59pm UTC](https://discourse.paraview.org/t/should-one-call-modified-or-markdirty-on-plugin/14318/1 "2024-04-02T12:59:53Z")

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Should one call Modified or MarkDirty on plugin in order to force further pipeline updates?

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### Author: ![mwestphal](https://discourse.paraview.org/user_avatar/discourse.paraview.org/mwestphal/32/17_2.png) [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [April 2, 2024, 1:00pm UTC](https://discourse.paraview.org/t/should-one-call-modified-or-markdirty-on-plugin/14318/2 "2024-04-02T13:00:52Z")

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Not needed

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### Author: ![joint](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/j/dc4da7/32.png) [@joint](https://discourse.paraview.org/u/joint)
#### Post date: [April 2, 2024, 2:25pm UTC](https://discourse.paraview.org/t/should-one-call-modified-or-markdirty-on-plugin/14318/3 "2024-04-02T14:25:56Z")

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But when I call update on the target algorithm, it is not updated, I mean

algo-\>Update();

But the request data is not called…

What to do then?