您可以为包含图表的Div设置id
元素,并使用@app.callback
在style
元素上隐藏整个div。
html.Div(id="graph-container", children= [
dcc.Graph(id = 'graph'),
]),
@app.callback(Output('graph-container', 'style'), [Input('input_widget','value')])
def hide_graph(input):
if input:
return {'display':'block'}
else:
return {'display':'none'}
要查看此代码的实际效果,您可以测试我的代码:
import dash
import dash_core_components as dcc
import dash_html_components as html
from dash.dependencies import Input, Output
app = dash.Dash()
app.layout = html.Div(children=[
html.H1(children='Hello Dash'),
html.Div(children='''
Dash: A web application framework for Python.
'''),
html.Label("Show?"),
dcc.Dropdown(
id="my-input",
options = [
{'label':'Yes', 'value':True},
{'label':'No', 'value':False}
],
value = True
),
html.Div(
id="graph-container",
children = [
dcc.Graph(
id='example-graph',
figure={
'data': [
{'x': [1, 2, 3], 'y': [4, 1, 2], 'type': 'bar', 'name': 'SF'},
{'x': [1, 2, 3], 'y': [2, 4, 5], 'type': 'bar', 'name': u'Montréal'},
],
'layout': {
'title': 'Dash Data Visualization'
}
}
)
])
])
@app.callback(Output('graph-container', 'style'), [Input('my-input', 'value')])
def hide_graph(my_input):
if my_input:
return {'display':'block'}
return {'display':'none'}
if __name__ == '__main__':
app.run_server(port=8125, debug = True)
注意我使用了以下版本:
- python 3.6.4
- dash 0.21.0
- dcc 0.22.1
- html 0.10.0
style={'height': 400}
- ollerend