How to call python_callback(event) procedure when change Select widget value

Community Support
1

Hi, when I use events like Tap or ButtonClick , for example:

p1.on_event(events.Tap, rr(p1.name)) # when tap on plot

button1.on_event(events.ButtonClick, rr(1)) #when click on Button

call function bellow:

def rr(attributes):

def python_callback(event):

val = int(attributes)

…

return python_callback

I have additional Select widget, and would like when change value of Select widget to call above function to update the plot.

sel = Select(title=“Frame:”, value=“1”, options = [‘1’, ‘2’, ‘3’])

Could somebody help how to do this, like

sel.on_change(…)

Or maybe is another command.

Thanks,

Goran

2

Hi,

There are several examples of callbacks on Select widgets in the examples:

  https://github.com/bokeh/bokeh/tree/master/examples/app

Thanks,

Bryan

···

On Mar 20, 2019, at 2:47 PM, Goran Goki <[email protected]> wrote:

Hi, when I use events like Tap or ButtonClick , for example:

p1.on_event(events.Tap, rr(p1.name)) # when tap on plot

button1.on_event(events.ButtonClick, rr(1)) #when click on Button

call function bellow:

def rr(attributes):
    def python_callback(event):
          val = int(attributes)
         .....
     return python_callback

I have additional Select widget, and would like when change value of Select widget to call above function to update the plot.

sel = Select(title="Frame:", value="1", options = ['1', '2', '3'])

Could somebody help how to do this, like

sel.on_change(..................)

Or maybe is another command.

Thanks,
Goran

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