Hello,
I am working with two Select-widget where one of them (select_2) is inside a class. Whenever I change the select_1, which is not part of the class, select_2 goes back to the first value which has been chosen.
What I want:
I want to achieve that the value of select_2 always keep and does not get affected by changes in select_1
What I tried:
I tried to use the value of select_2 as an input-variable of the class. However this works only until i change select_1 for the first time.
Example:
- Change select_2 from ‘first’ to ‘second’
- Change select_1 from A to B.
- Change select_2 from ‘second’ to ‘first’
- Change select_1 from B to A
after step 4 the value of select_2 changes to ‘second’ again.
What can I do so that after step 4 the value of select_2 stays as it is? Thanks in advance for help!
Working example:
from bokeh.io import curdoc
from bokeh.models import Select
from bokeh.layouts import column
col=['A','B']
select_1 = Select(title='select_1', value='A', options=col)
class one():
def __init__(self, selection):
self.selection=selection
self.col=['first','second']
self.select_2 = Select(title='select_2', value=self.selection, options=self.col)
a=one('first')
select_2=a.select_2
def update():
print(a.select_2.value)
layout.children[1] = one(a.select_2.value).select_2
select_1.on_change("value", lambda attr, old, new: update())
layout=column(select_1,select_2)
curdoc().add_root(layout)