Dcc Link without any component re-rendering

Dash Python
1

I have created a demo app.
I have 3 buttons and dcc link connected to those and a dropdown menu.
I want if I am clicking any of those button which is redirecting to href, I want to maintain the states of other components except the one which is being directly updated.

for the below code.
since dropdown callback is getting triggered by the btn-1 style property, this will trigger at the start of the page
but when I am clicking on the button my url is changing without refreshing the page but the problem is my dropdown callback is getting triggered again.

can i maintain it state? is it possible?

thanks in advance

import dash_core_components as dcc
import dash_bootstrap_components as dbc
from dash import html, dcc, dash
import dash
from dash.dependencies import Input, Output, State


dash.register_page(__name__, path="/test")


layout = html.Div([
    html.Div([], id="test"),
    dcc.Link(html.Button(["Click 1"], id="btn-1"), href=dash.get_relative_path("/test/?n=1")),
    dcc.Link(html.Button(["Click 2"], id="btn-2"), href=dash.get_relative_path("/test/?n=2")),
    dcc.Link(html.Button(["Click 3"], id="btn-3"), href=dash.get_relative_path("/test/?n=3")),
    dcc.Dropdown(id="test-dd")
])



@dash.callback(
    Output("test-dd", "options"),
    Input("btn-1", "style")
)
def dd_update(style):
    print(f'udpate dd')
    return ["a", "b", "c"]



@dash.callback(
    [Output("test", "children")],
    [Input('btn-1', "n_clicks"),
     Input('btn-2', "n_clicks"),
     Input('btn-3', "n_clicks"),]
)
def udpate(n_clicks_1, n_clicks_2, n_clicks_3):
    print(n_clicks_1, n_clicks_2, n_clicks_3)
    if n_clicks_1:
        return ["click 1"]
    if n_clicks_2:
        return ["click 2"]
    if n_clicks_3:
        return ["click 3"]
    return [],
2

Hey @mikeyfireball7 it sounds like this topic might help you: