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On this page
  • Introduction
  • Function signature
  • Parameters
  • value
  • placeholder
  • size
  • w_type
  • format
  • readonly
  • disabled
  • editable
  • clearable
  • widget_id
  • Methods and attributes
  • Mini App Example
  • Import libraries
  • Init API client
  • Initialize DateTimePicker and Text widgets
  • Create app layout
  • Create an app using a layout
  • Add functions to control widgets from Python code

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  1. App development
  2. Widgets
  3. Input

DateTimePicker

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Last updated 1 year ago

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Introduction

DateTimePicker is a widget in Supervisely that allows you to choose a date and time on the UI.

Function signature

DateTimePicker(
    value=None
    readonly=False,
    disabled=False,
    editable=False,
    clearable=True,
    size=None,
    placeholder="Select date and time",
    w_type="datetime",
    format="yyyy-MM-dd HH:mm:ss",
    widget_id=None,
)

Parameters

Parameters
Type
Description

value

Union[int, str, list, tuple, None]

Default value in DateTimePicker

readonly

bool

Allows to set read only mode

disabled

bool

Allows to disable DateTimePicker

editable

bool

Allows to edit input

clearable

bool

Shows clear button

size

Literal["large", "small", "mini", None]

Size of input field

placeholder

str

DateTimePicker placeholder

w_type

Literal["year", "month", "date", "datetime", "week", "datetimerange", "daterange"]

DateTimePicker picker type

format

Literal["yyyy", "MM", "dd", "HH", "mm", "ss"]

Datetime displaying format

widget_id

str

ID of the widget

value

Determine DateTimePicker default value.

type: Union[int, str, list, tuple, None]

default value: None

datetime_picker = DateTimePicker(value="2023-03-22 14:01:02")

placeholder

Determine DateTimePicker placeholder.

type: str

default value: "Select date and time"

datetime_picker = DateTimePicker(placeholder="Select")

size

Determine DateTimePicker size of the input.

type: Literal["large", "small", "mini", None]

default value: None

datetime_picker = DateTimePicker()
datetime_picker_mini = DateTimePicker(size="mini")
datetime_picker_small = DateTimePicker(size="small")
datetime_picker_large = DateTimePicker(size="large")

w_type

Determine DateTimePicker picker type.

type: Literal["year", "month", "date", "datetime", "week", "datetimerange", "daterange"]

default value: "datetime"

datetime_picker = DateTimePicker(w_type="datetimerange")

format

Determine DateTimePicker displaying format.

type: Literal["yyyy", "MM", "dd", "HH", "mm", "ss"]

default value: "yyyy-MM-dd HH:mm:ss"

datetime_picker = DateTimePicker(format="yyyy/MM/dd HH:mm")

readonly

Determine whether DateTimePicker is read-only.

type: bool

default value: False

datetime_picker = DateTimePicker(value="2023-03-22 14:01:02", readonly=True)

disabled

Determine whether DateTimePicker is disabled.

type: bool

default value: False

datetime_picker = DateTimePicker(disabled=True)

editable

Determine whether the input is editable.

type: bool

default value: False

clearable

Determine whether to show a clear button.

type: bool

default value: True

widget_id

The ID of the widget

type: str

default value: None

Methods and attributes

Attributes and Methods
Description

get_value()

Return DateTimePicker current value.

set_value(value: Union[int, str, datetime, list, tuple])

Set DateTimePicker value.

@value_changed

Decorator function to handle DateTimePicker click.

Mini App Example

You can find this example in our GitHub repository:

Import libraries

import os
from datetime import datetime, timezone
import supervisely as sly
from dotenv import load_dotenv
from supervisely.app.widgets import Card, Container, Text, DateTimePicker

Init API client

First, we load environment variables with credentials and init API for communicating with Supervisely Instance:

load_dotenv("local.env")
load_dotenv(os.path.expanduser("~/supervisely.env"))
api = sly.Api()

Initialize DateTimePicker and Text widgets

datetime_picker = DateTimePicker()
text = Text()

Create app layout

Prepare a layout for an app using Card widget with the content parameter.

card = Card(
    "Date and Time Picker",
    content=Container([datetime_picker, text]),
)
layout = Container(widgets=[card])

Create an app using a layout

Create an app object with a layout parameter.

app = sly.Application(layout=card)

Add functions to control widgets from Python code

@datetime_picker.value_changed
def set_only_date_from_today(datetime_value):
    if datetime_value is not None:
        format_string = "%Y-%m-%dT%H:%M:%S.%fZ"
        selected = datetime.strptime(datetime_value, format_string).replace(tzinfo=timezone.utc)
        current_day = datetime.combine(datetime.now().date(), datetime.min.time()).replace(
            tzinfo=timezone.utc
        )
        if selected < current_day:
            new_value = datetime.utcnow().replace(tzinfo=timezone.utc)
            iso_value = new_value.strftime("%Y-%m-%dT%H:%M:%S.%f")[:-3] + "Z"
            datetime_picker.set_value(iso_value)

    info = f"Selected date and time: {datetime_value}"
    text.set(text=info, status="info")

layout
🔥
supervisely-ecosystem/ui-widgets-demos/input/006_datetime_picker/src/main.py