# How to limit the out-port preview data size?

**URL:** <https://forum.knime.com/t/how-to-limit-the-out-port-preview-data-size/17891>\
**Category:** Node Development\
**Created:** [September 5, 2019, 7:41am UTC](https://forum.knime.com/t/how-to-limit-the-out-port-preview-data-size/17891 "2019-09-05T07:41:16Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![lou](https://forum-cdn.knime.com/user_avatar/forum.knime.com/lou/32/7683_2.png) [@lou](https://forum.knime.com/u/lou)\
**Post date:** [September 5, 2019, 7:41am UTC](https://forum.knime.com/t/how-to-limit-the-out-port-preview-data-size/17891/1 "2019-09-05T07:41:16Z")

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How to control the out-port preview data size?

 ![image](https://forum-cdn.knime.com/uploads/default/original/2X/f/f024dbea8b90656fd77cb1e2731322611327ba99.png)

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**Author:** ![Martyna](https://forum-cdn.knime.com/user_avatar/forum.knime.com/martyna/32/20942_2.png) [@Martyna](https://forum.knime.com/u/Martyna)\
**Post date:** [September 10, 2019, 9:34am UTC](https://forum.knime.com/t/how-to-limit-the-out-port-preview-data-size/17891/2 "2019-09-10T09:34:51Z")

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Hi lou,

no, there is no way to control this.  
The viewer loads data lazily, so it should not cause any issues even having thousands of rows there.

Best,  
Martyna

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**Author:** ![system](https://forum-cdn.knime.com/uploads/default/original/1X/ab3ccf34482a0329361734a18199390177204f15.png) [@system](https://forum.knime.com/u/system)\
**Post date:** [June 23, 2023, 8:36pm UTC](https://forum.knime.com/t/how-to-limit-the-out-port-preview-data-size/17891/3 "2023-06-23T20:36:59Z")

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