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Archived discussions · Captured October 28, 2026

impossible to update data source

Community Support
fabien_genty
fabien_genty

Hi,

I am currently doing where a need to update a ColumnDataSource in real-time using three sliders. I need to update the data for two reasons the first is to modify the glyph color according to the value of the slider and after that, i want to be able to display the points on a data table and download the data table.

So I use the function custumJS but it doesn’t work. I think the problem is from the command source.on_change(“value”) but I am not sure because I have some trouble using the callback .

I put an issue on StackOverflow :

https://stackoverflow.com/questions/48137081/bokeh-update-data-with-slider-using-callback

Sincerly,

···
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Bryan
Bryan

I've answered on SO

Thanks,

Bryan

···

On Jan 7, 2018, at 06:27, fabien genty <electronsource75@gmail.com> wrote:

Hi,

I am currently doing where a need to update a ColumnDataSource in real-time using three sliders. I need to update the data for two reasons the first is to modify the glyph color according to the value of the slider and after that, i want to be able to display the points on a data table and download the data table.

So I use the function custumJS but it doesn't work. I think the problem is from the command source.on_change("value") but I am not sure because I have some trouble using the callback .

I put an issue on StackOverflow :

javascript - bokeh update data with slider using callback - Stack Overflow

Sincerly,

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fabien_genty
fabien_genty

thank you a lot

···

2018-01-08 0:52 GMT+01:00 Bryan Van de ven bryanv@anaconda.com:

I’ve answered on SO

Thanks,

Bryan

On Jan 7, 2018, at 06:27, fabien genty electronsource75@gmail.com wrote:

Hi,

I am currently doing where a need to update a ColumnDataSource in real-time using three sliders. I need to update the data for two reasons the first is to modify the glyph color according to the value of the slider and after that, i want to be able to display the points on a data table and download the data table.

So I use the function custumJS but it doesn’t work. I think the problem is from the command source.on_change(“value”) but I am not sure because I have some trouble using the callback .

I put an issue on StackOverflow :

https://stackoverflow.com/questions/48137081/bokeh-update-data-with-slider-using-callback

Sincerly,

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