You can use traitlets.link to connect two values together.
from IPython.display import displayimport ipywidgets as Wfrom
traitlets import link
def coreCalculationFunction(myOptions):
return myOptions
def optionsRelatedFunction():
myOptions=['a', 'b', 'c']
label = W.HTML(value="Hello World")
the_interact = W.interactive(coreCalculationFunction,
myOptions=myOptions)
dropdown = the_interact.children[0]
# link ensures that when dropdown.value changes,
# label.value gets the same value, and vice versa.
# dlink is a unidirectional alternative.
link((dropdown, 'value'),
(label, 'value'),
)
display(label, the_interact)
optionsRelatedFunction()
-MinRK
On Sat, Jun 24, 2017 at 10:21 PM, Malitha Kabir <malitha12...@gmail.com>
wrote:
> Hi,
> I am facing trouble with updating widget value. Any help is highly
> appreciated.
>
> Here is relevant details:
> I have two widgets (one dropdown and another html text). My uses will
> change the value from dropdown and will expect to see the effect in html
> text.
> Additional note 1 : my current development uses interact() function. It
> will be great help if you enable me to persist the current structure.
> Additional note 2 : I need to make sure that the development is fit for
> both python 2 and 3.
>
> Here is the relevant architecture:
>
> from __future__ import print_function
> from ipywidgets import interact, interactive, fixed, interact_manual
> import ipywidgets as widgets
>
> def coreCalculationFunction(wantToUpdateIt,myOptions):
>
> if myOptions is 'a':
> wantToUpdateIt='first alphabet in english'
> elif myOptions is 'b':
> wantToUpdateIt='second alphabet in english'
> else:
> wantToUpdateIt='anything else here!'
>
> return myOptions
>
> def optionsRelatedFunction():
> myOptions=['a', 'b', 'c']
> wantToUpdateIt=widgets.HTML(value="Hello World")
> res=interact(coreCalculationFunction,
> wantToUpdateIt=wantToUpdateIt,
> myOptions=myOptions);
> return res
>
>
> optionsRelatedFunction()
>
>
> Thank you very much for your kind help.
>
> Best regards,
> Malitha Humayun Kabir
>
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