Read-only archive⌕
Hi all,
I have the following code:
dropdown = Dropdown(label = ‘Select product’, button_type = ‘primary’, menu = [(‘product 1’, ‘1234’), (‘product 2’, ‘5678’)])
dropdown.on_change(‘value’, dropdown_handler)
``
In the handler I will always get the second tuple value of the menu item.
Is there any way to access the first tuple value (‘product 1’, ‘product 2’, enz…) ?
Hi Tony,
The first item in each tuple is just a label and is used just for rendering items inside a drop-down.
You can either duplicate them in the menu parameter, making it both a value and a label, like “[(‘product 1’, ‘product 1’), …]”, or just create a map of values to labels, and use it inside your on_change handler.
Regards,
Eugene
On Friday, January 26, 2018 at 12:10:14 AM UTC+7, Tony Halik wrote:
Hi all,
I have the following code:
dropdown = Dropdown(label = ‘Select product’, button_type = ‘primary’, menu = [(‘product 1’, ‘1234’), (‘product 2’, ‘5678’)])
dropdown.on_change(‘value’, dropdown_handler)
``
In the handler I will always get the second tuple value of the menu item.
Is there any way to access the first tuple value (‘product 1’, ‘product 2’, enz…) ?
I need to have both “display text” and an “unique identity” in the menu tuples so I can use them both in the Dropdown event handler.
I understand it is impossible to get there the first tuple value so I will have to do the work-around you suggested.
Thanks.
On Thursday, January 25, 2018 at 6:30:43 PM UTC+1, Eugene Pakhomov wrote:
Hi Tony,
The first item in each tuple is just a label and is used just for rendering items inside a drop-down.
You can either duplicate them in the menu parameter, making it both a value and a label, like “[(‘product 1’, ‘product 1’), …]”, or just create a map of values to labels, and use it inside your on_change handler.
Regards,
Eugene
On Friday, January 26, 2018 at 12:10:14 AM UTC+7, Tony Halik wrote:
Hi all,
I have the following code:
dropdown = Dropdown(label = ‘Select product’, button_type = ‘primary’, menu = [(‘product 1’, ‘1234’), (‘product 2’, ‘5678’)])
dropdown.on_change(‘value’, dropdown_handler)
``
In the handler I will always get the second tuple value of the menu item.
Is there any way to access the first tuple value (‘product 1’, ‘product 2’, enz…) ?
End of archived discussion · Replies are disabled