Problem creating an 'ALL' in drop-down menu

Dash Python
1

Hello,
I want to include all my drop down items as an “ALL” option.

Screen Shot 2020-02-26 at 2.27.52 PM
Screen Shot 2020-02-26 at 2.27.52 PM1366×373 32 KB

However, it shows error when i implement it. The error message is shown below
Screen Shot 2020-02-26 at 2.32.51 PM
Screen Shot 2020-02-26 at 2.32.51 PM562×874 107 KB

Is there any way around it?
Or any alternatives?
I saw people have searched it up before but it’s not solved yet?

Thank you!

2

Hi @unicornsneversleep
The way I got around this is in the function that comes after the callback. In the Dropdown options for All, I did:

{}...
{}...
{'label': "All", 'value':"all"}

And in the function, just filter your data accordingly. For example, if you’re using Pandas:

def update_graph(dropdown_value):
    if dropdown_value == 'flexible':
        dff = df[df["column_name"]==dropdown_value]
    if dropdown_value==all:
        dff=df   #dataframe not filtered so all column values will be present
1 Like