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usage.py
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usage.py
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import dash
from dash.dependencies import Input, Output
from dash import html
import dash_dvx as dvx
import json
app = dash.Dash(
__name__, meta_tags=[{"name": "viewport", "content": "width=device-width"}],
external_stylesheets=["https://cdn3.devexpress.com/jslib/21.2.5/css/dx.common.css","https://cdn3.devexpress.com/jslib/21.2.5/css/dx.material.blue.light.compact.css"]
)
#DATA
data = [{
"Task_ID": 1,
"Task_Assigned_Employee_ID": 1,
"Task_Subject": 'Plans 2015',
"Task_Start_Date": '2015-01-01T00:00:00',
"Task_Due_Date": '2015-04-01T00:00:00',
"Task_Status": 'Completed',
"Task_Priority": 4,
"Task_Completion": 100,
"Task_Parent_ID": 0,
}, {
"Task_ID": 2,
"Task_Assigned_Employee_ID": 2,
"Task_Subject": 'Health Insurance',
"Task_Start_Date": '2015-02-12T00:00:00',
"Task_Due_Date": '2015-05-30T00:00:00',
"Task_Status": 'In Progress',
"Task_Priority": 4,
"Task_Completion": 75,
"Task_Parent_ID": 0,
}, {
"Task_ID": 3,
"Task_Assigned_Employee_ID": 4,
"Task_Subject": 'New Brochures',
"Task_Start_Date": '2015-02-17T00:00:00',
"Task_Due_Date": '2015-03-01T00:00:00',
"Task_Status": 'Completed',
"Task_Priority": 3,
"Task_Completion": 100,
"Task_Parent_ID": 1,
}, {
"Task_ID": 4,
"Task_Assigned_Employee_ID": 31,
"Task_Subject": 'Training',
"Task_Start_Date": '2015-03-02T00:00:00',
"Task_Due_Date": '2015-06-29T00:00:00',
"Task_Status": 'Completed',
"Task_Priority": 3,
"Task_Completion": 100,
"Task_Parent_ID": 2,
}, {
"Task_ID": 5,
"Task_Assigned_Employee_ID": 5,
"Task_Subject": 'NDA',
"Task_Start_Date": '2015-03-12T00:00:00',
"Task_Due_Date": '2015-05-01T00:00:00',
"Task_Status": 'In Progress',
"Task_Priority": 3,
"Task_Completion": 90,
"Task_Parent_ID": 1,
}, {
"Task_ID": 6,
"Task_Assigned_Employee_ID": 7,
"Task_Subject": 'Revenue Projections',
"Task_Start_Date": '2015-03-24T00:00:00',
"Task_Due_Date": '2015-04-15T00:00:00',
"Task_Status": 'Completed',
"Task_Priority": 3,
"Task_Completion": 100,
"Task_Parent_ID": 4,
}, {
"Task_ID": 7,
"Task_Assigned_Employee_ID": 9,
"Task_Subject": 'TV Recall',
"Task_Start_Date": '2015-04-18T00:00:00',
"Task_Due_Date": '2016-02-04T00:00:00',
"Task_Status": 'In Progress',
"Task_Priority": 4,
"Task_Completion": 90,
"Task_Parent_ID": 4,
}, {
"Task_ID": 8,
"Task_Assigned_Employee_ID": 6,
"Task_Subject": 'Overtime',
"Task_Start_Date": '2015-06-10T00:00:00',
"Task_Due_Date": '2015-06-20T00:00:00',
"Task_Status": 'Completed',
"Task_Priority": 2,
"Task_Completion": 100,
"Task_Parent_ID": 2,
}, {
"Task_ID": 9,
"Task_Assigned_Employee_ID": 8,
"Task_Subject": 'Recall and Refund Forms',
"Task_Start_Date": '2015-06-17T00:00:00',
"Task_Due_Date": '2016-04-09T00:00:00',
"Task_Status": 'Completed',
"Task_Priority": 2,
"Task_Completion": 100,
"Task_Parent_ID": 1,
}, {
"Task_ID": 10,
"Task_Assigned_Employee_ID": 10,
"Task_Subject": 'Shippers',
"Task_Start_Date": '2015-07-10T00:00:00',
"Task_Due_Date": '2016-04-11T00:00:00',
"Task_Status": 'Completed',
"Task_Priority": 2,
"Task_Completion": 100,
"Task_Parent_ID": 7,
}]
fields = [
{
"dataField": 'Product_ID',
"dataType": 'number'
}, {
"dataField": 'Product_Name',
"dataType": 'string'
}, {
"dataField": 'Product_Cost',
"dataType": 'number'
}, {
"dataField": 'Product_Sale_Price',
"dataType": 'number'
}, {
"dataField": 'Product_Retail_Price',
"dataType": 'number'
}, {
"dataField": 'Product_Current_Inventory',
"dataType": 'number'
},
]
#LAYOUT
app.layout = html.Div(children=[
dvx.Grid(
id="grid",
dataSource=data,
columns = ['Task_ID','Task_Subject', 'Task_Start_Date', 'Task_Status', 'Task_Priority'],
keyExpr= "Task_ID",
searchPanelIsEnabled= False, #if you don't want the search bar
pageSizeSelectorIsEnabled= True, #if you want to have the ability to change in the UI the defalt number of items by page
allowedPageSizes= [5, 10, 20, 50, 100],
),
html.H4("Selected data for the grid"),
html.Div(id='output_grid'),
dvx.List(
id="list",
dataSource=data,
keyExpr= "Task_ID",
parentIdExpr= "Task_Parent_ID",
defaultSelectedRowKeys = [8,9],
default_selected_row_keys = [8,9],
selected_rows = [{
"Task_ID": 8,
"Task_Assigned_Employee_ID": 6,
"Task_Subject": 'Overtime',
"Task_Start_Date": '2015-06-10T00:00:00',
"Task_Due_Date": '2015-06-20T00:00:00',
"Task_Status": 'Completed',
"Task_Priority": 2,
"Task_Completion": 100,
"Task_Parent_ID": 2,
}, {
"Task_ID": 9,
"Task_Assigned_Employee_ID": 8,
"Task_Subject": 'Recall and Refund Forms',
"Task_Start_Date": '2015-06-17T00:00:00',
"Task_Due_Date": '2016-04-09T00:00:00',
"Task_Status": 'Completed',
"Task_Priority": 2,
"Task_Completion": 100,
"Task_Parent_ID": 1,
}],
columns = ['Task_ID','Task_Subject', 'Task_Start_Date', 'Task_Status'],
filterRowIsEnabled= False, #if you don't want the row filter undre the header
columnChooserIsEnabled= True, #if you want to have the ability to show/hide columns in the UI
defaultPageSize= 25
),
html.H4("Selected data for the list"),
html.P("(Only the child nodes of the selected items are returned, change selectionMode to 'all' if you want the parents nodes)"),
html.Div(id='output_list'),
html.Div(id='output_list_default'),
dvx.Filterbuilder(
id="fbuilder",
fields=fields
),
html.H4("Selected data for the Filterbuilder"),
html.Div(id='output_filterbuilder'),
])
# CALLBACKS
@app.callback(
Output('output_grid', 'children'),
Input('grid', 'selected_rows'),
)
def update_grid(selected_rows):
return json.dumps(selected_rows)
@app.callback(
[Output('output_list', 'children'),
Output('output_list_default', 'children'),],
[Input('list', 'selected_rows'),
Input('list', 'default_selected_row_keys'),]
)
def update_list(selected_rows,default_selected_row_keys):
return json.dumps(selected_rows), json.dumps(default_selected_row_keys)
@app.callback(
Output('output_filterbuilder', 'children'),
Input('fbuilder', 'value'),
)
def update_filter(value):
return json.dumps(value)
if __name__ == '__main__':
app.run_server(debug=True)