topic Re: Unable to Restore Row Height After Accidental Resize in Data Table in Discussions

Unable to Restore Row Height After Accidental Resize in Data Table

H_TJ — Mon, 23 Mar 2026 00:26:46 GMT

I encountered an issue while working with a data table in JMP 18.2.1.

While trying to select rows, I accidentally dragged the mouse in a way that resized the row height instead of selecting. As a result, the row height became excessively large, making the table difficult to view.

The problem is that there appears to be no way to restore the row height to its original size using the mouse. Attempting to manually resize it back does not return it to the default height, and it is very difficult to achieve a consistent or clean layout again.

This behavior is quite inconvenient, especially since it is easy to trigger accidentally due to the narrow boundary between selection and resizing. It would be helpful if one of the following improvements could be implemented:

→ A simple way to reset row height to default
→ An option to lock row height to prevent accidental resizing
→ More distinct interaction between selection and resizing

Thank you for your consideration.

Re: Unable to Restore Row Height After Accidental Resize in Data Table

jthi — Mon, 23 Mar 2026 05:15:34 GMT

It would be helpful if one of the following improvements could be implemented: -> JMP Wish List

Re: Unable to Restore Row Height After Accidental Resize in Data Table

mmarchandFSLR — Mon, 23 Mar 2026 13:02:11 GMT

The way I've found to do this is to set the height to zero. It sets it to the default height instead.

dt << Set Cell Height( 0 );

Re: Unable to Restore Row Height After Accidental Resize in Data Table

jules — Mon, 23 Mar 2026 13:04:07 GMT

Hi @H_TJ ,

I hear you on this frustration! In JMP 19 we introduced an easy way to reset the row height to default: double click the border between the rows in the left-hand area of the table (where the row numbers are). Also in JMP 19, resizing can only be done in that same left-hand area, which we hoped would limit accidental resizing when trying to select rows/cells.

In JMP 18 and earlier, resetting the row heights to default can be done via jsl (which I know is not ideal):

Current Data Table() << Set Cell Height(0)

I hope this helps!

-Jules

Re: Unable to Restore Row Height After Accidental Resize in Data Table

H_TJ — Tue, 24 Mar 2026 00:22:31 GMT

Thank you for the tips.

I updated JMP and it works well.