Coding-with-Adam
commented
2 years ago Hi There,Are you on my Patreon by any chance?https://www.patreon.com/charmingdataI just released a video there on how to use the Burger with a side bar. It's a very basic initial example but next week, I'd like to create a video showing how to build an app with that side bar. I'm not sure what error message you are getting wtih the current code you have..Adam SchroederOwnerCharming Data LLC 118 E 124th ST #1808, New York, New York 10035 My Pronouns: He, him, his ¡Hablo español!
On Oct 19 2021, at 4:12 am, q1121599315 ***@***.***> wrote:Hey Adam!
I looked at the video of "Side Navigation Bar" on your youtube channel，and I got a question, I want to design a complicated app by just using side bar. In order to do this , I have to create another app, but I don't known how to deal with these two callbacks.
the code as following:
import dash
import dash_bootstrap_components as dbc
from dash import html,dcc
import plotly.express as px
from dash.dependencies import Input,Output
import pandas as pd
df = pd.read_csv('https://raw.githubusercontent.com/Coding-with-Adam/Dash-by-Plotly/master/Bootstrap/Side-Bar/iranian_students.csv')
app2=dash.Dash(name,external_stylesheets=[dbc.themes.BOOTSTRAP],suppress_callback_exceptions=True)
server = app2.server
df2 = px.data.tips()
days = df2.day.unique()
app2.layout = html.Div([
dcc.Dropdown(
id="dropdown",
options=[{"label": x, "value": x} for x in days],
value=days[0],
clearable=False,
),
dcc.Graph(id="bar-chart"),
])
@app2.callback(
Output("bar-chart", "figure"),
[Input("dropdown", "value")])
def update_bar_chart(day):
mask = df2["day"] == day
fig = px.bar(df2[mask], x="sex", y="total_bill",
color="smoker", barmode="group")
return fig
app=dash.Dash(name,external_stylesheets=[dbc.themes.BOOTSTRAP])
SIDEBAR_STYLE={
'position':'fixed',
'top':0,
'left':0,
'bottom':0,
'width':'16rem',
'padding':'2rem 1rem',
'background-color':'#f8f9fa',
}
CONTENT_STYLE={
'margin-left':'18rem',
'margin-right':'2rem',
'padding':'2rem 1rem',
}
sidebar=html.Div(
[
html.H2('Sidebar',className='display-4'),
html.Hr(),
html.P(
'Number of students per education level',className='lead'
),
dbc.Nav(
[
dbc.NavLink('Home',href='/',active='exact'),
dbc.NavLink('Page 1',href='/page-1',active='exact'),
dbc.NavLink('Page 2',href='/page-2',active='exact'),
],
vertical=True,
pills=True,#
),
],
style=SIDEBAR_STYLE,
)
content=html.Div(id='page-content',children=[],style=CONTENT_STYLE)
app.layout=html.Div([
dcc.Location(id='url'),
sidebar,
content
])
@app.callback(
Output('page-content','children'),
[Input('url','pathname')]
)
def render_page_content(pathname):
if pathname=='/':
return [app2.layout]
elif pathname =='/page-1':
return [
html.H1('Grad School in Iran',
style={'textAlign':'center'}),
dcc.Graph(id='bargraph',
figure=px.bar(df,barmode='group',x='Years',
y=['Girls Grade School','Boys Grade School']))
]
elif pathname =='/page-2':
return [
html.H1('High School in Iran',
style={'textAlign':'center'}),
dcc.Graph(id='bargraph',
figure=px.bar(df,barmode='group',x='Years',
y=['Girls High School','Boys High School']))
]
return dbc.Jumbotron(
[
html.H1('404 : Not found' ,className='text-danger'),
html.Hr(),
html.P(f'The pathname {pathname} was not recognised...')
]
)
if name=='main':
app.run_server(debug=True,port=3001)
I have also looked at the video of Deploy_App_to_Web\Multipage_App on your channel , but i think that using side bar is much more easier than building a multipage app. Looking for you support.
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Hey Adam! I looked at the video of "Side Navigation Bar" on your youtube channel，and I got a question, I want to design a complicated app by just using side bar. In order to do this , I have to create another app, but I don't known how to deal with these two callbacks. the code as following:
import dash import dash_bootstrap_components as dbc from dash import html,dcc import plotly.express as px from dash.dependencies import Input,Output import pandas as pd
df = pd.read_csv('https://raw.githubusercontent.com/Coding-with-Adam/Dash-by-Plotly/master/Bootstrap/Side-Bar/iranian_students.csv')
app2=dash.Dash(name,external_stylesheets=[dbc.themes.BOOTSTRAP],suppress_callback_exceptions=True) server = app2.server df2 = px.data.tips() days = df2.day.unique() app2.layout = html.Div([ dcc.Dropdown( id="dropdown", options=[{"label": x, "value": x} for x in days], value=days[0], clearable=False, ), dcc.Graph(id="bar-chart"), ])
@app2.callback( Output("bar-chart", "figure"), [Input("dropdown", "value")]) def update_bar_chart(day): mask = df2["day"] == day fig = px.bar(df2[mask], x="sex", y="total_bill", color="smoker", barmode="group") return fig
app=dash.Dash(name,external_stylesheets=[dbc.themes.BOOTSTRAP])
SIDEBAR_STYLE={ 'position':'fixed', 'top':0, 'left':0, 'bottom':0, 'width':'16rem', 'padding':'2rem 1rem', 'background-color':'#f8f9fa', }
CONTENT_STYLE={ 'margin-left':'18rem', 'margin-right':'2rem', 'padding':'2rem 1rem', }
sidebar=html.Div( [ html.H2('Sidebar',className='display-4'), html.Hr(), html.P( 'Number of students per education level',className='lead' ), dbc.Nav( [ dbc.NavLink('Home',href='/',active='exact'), dbc.NavLink('Page 1',href='/page-1',active='exact'), dbc.NavLink('Page 2',href='/page-2',active='exact'), ], vertical=True, pills=True,# ), ], style=SIDEBAR_STYLE, )
content=html.Div(id='page-content',children=[],style=CONTENT_STYLE)
app.layout=html.Div([ dcc.Location(id='url'), sidebar, content ]) @app.callback( Output('page-content','children'), [Input('url','pathname')] ) def render_page_content(pathname): if pathname=='/': return [app2.layout] elif pathname =='/page-1': return [ html.H1('Grad School in Iran', style={'textAlign':'center'}), dcc.Graph(id='bargraph', figure=px.bar(df,barmode='group',x='Years', y=['Girls Grade School','Boys Grade School'])) ] elif pathname =='/page-2': return [ html.H1('High School in Iran', style={'textAlign':'center'}), dcc.Graph(id='bargraph', figure=px.bar(df,barmode='group',x='Years', y=['Girls High School','Boys High School'])) ] return dbc.Jumbotron( [ html.H1('404 : Not found' ,className='text-danger'), html.Hr(), html.P(f'The pathname {pathname} was not recognised...') ] ) if name=='main': app.run_server(debug=True,port=3001)
I have also looked at the video of Deploy_App_to_Web\Multipage_App on your channel , but i think that using side bar is much more easier than building a multipage app. Looking for you support.