I added a button to my layout. When I try to write a callback for it, I get the following error:
dash.exceptions.NonExistantEventException: Attempting to assign a callback with the event "click" but the component "get_custom_vndr" doesn't have "click" as an event. Here is a list of the available events in "get_custom_vndr": 
Here’s how I’m adding it to my layout:
app_vndr.layout = html.Div([ html.Button( '+', id='get_custom_vndr', type='submit' ) ])
and here’s the callback function that’s giving the above error:
@app_vndr.callback( dash.dependencies.Output('overlay', 'className'), events=[dash.dependencies.Event('get_custom_vndr', 'click'), dash.dependencies.Event('add_vndr_id_submit', 'click')]) def show_input(b1_n, b2_n): if b1_n>0: return '' elif b1_n>0: return 'hidden'
Did I miss something when I added the button to my layout? or when I tried to write the callback?
I got it working for
but I’d like to use two buttons for the same output and with the n_clicks event, I’d need to try to figure out which button was clicked by comparing the current n_clicks to the previous n_clicks for each button, which seems like a pretty hacky way to do it.