# TextArea
## Introduction
**`TextArea`** widget in Supervisely is a widget that allows users to enter and edit multiple lines of text. The widget provides a large text input area that can be customized with various options, such as placeholder text, autosize or read-only properties, and default value. `TextArea` widget is often used for collecting longer form input from users, such as descriptions or comments.
## Function signature
```python
TextArea(
value=None,
placeholder="Please input",
rows=2,
autosize=True,
readonly=False,
widget_id=None,
)
```
## Parameters
| Parameters | Type | Description |
| :-----------: | :----: | :---------------------------------------------------------------------: |
| `value` | `str` | Widgets text value |
| `placeholder` | `str` | Specifies a short hint that describes the expected value of a text area |
| `rows` | `int` | Specifies the visible number of lines in a text area |
| `autosize` | `bool` | Specifies that a text area should automatically get focus |
| `readonly` | `bool` | Specifies that a text area should be read-only |
| `widget_id` | `str` | ID of the widget |
### value
Widgets text value
**type:** `str`
**default value:** `None`
```python
input_value = "Some text " * 100
text_area = TextArea(value=input_value)
```
### placeholder
Specifies a short hint that describes the expected value of a text area.
**type:** `str`
**default value:** `"Please input"`
```python
text_area = TextArea(placeholder="Placeholder data")
```
### rows
Specifies the visible number of lines in a text area.
**type:** `int`
**default value:** `2`
```python
input_value = "Some text " * 100
text_area = TextArea(value=input_value, rows=100)
```
### autosize
Specifies that a text area should automatically get focus.
**type:** `bool`
**default value:** `True`
```python
text_area = TextArea(rows=10, autosize=False)
```
### readonly
Specifies that a text area should be read-only.
**type:** `bool`
**default value:** `false`
```python
text_area = TextArea(value="some text", readonly=True)
```
### widget\_id
ID of the widget.
**type:** `str`
**default value:** `None`
## Methods and attributes
| Attributes and Methods | Description |
| :---------------------: | -------------------------------------- |
| `set_value(value: str)` | Set value data. |
| `get_value()` | Returns input value data. |
| `is_readonly()` | Check `TextArea` is `readonly` or not. |
| `enable_readonly()` | Set `readonly` == `True`. |
| `disable_readonly()` | Set `readonly` == `False`. |
## Mini App Example
You can find this example in our Github repository:
[ui-widgets-demos/text elements/002\_textarea/src/main.py](https://github.com/supervisely-ecosystem/ui-widgets-demos/blob/master/text%20elements/002_textarea/src/main.py)
### Import libraries
```python
import os
import supervisely as sly
from supervisely.app.widgets import Card, Container, TextArea, Button
from dotenv import load_dotenv
import random
import string
```
### Init API client
First, we load environment variables with credentials and init API for communicating with Supervisely Instance:
```python
load_dotenv("local.env")
load_dotenv(os.path.expanduser("~/supervisely.env"))
api = sly.Api()
```
### Initialize `Button` widgets we will use
```python
button_random_text = Button(text="Generate random text")
button_clean_input = Button(text="Clean input")
buttons_container = Container(
widgets=[button_random_text, button_clean_input],
direction="horizontal",
)
```
### Initialize `TextArea` widget
```python
text_area = TextArea()
```
### Create app layout
Prepare a layout for app using `Card` widget with the `content` parameter and place widget that we've just created in the `Container` widget.
```python
card = Card(
title="TextArea",
content=Container(widgets=[text_area, buttons_container]),
)
layout = Container(widgets=[card], direction="vertical")
```
### Create app using layout
Create an app object with layout parameter.
```python
app = sly.Application(layout=layout)
```
Add functions to control widgets from python code
```python
@button_random_text.click
def random_text():
random_text = "".join(
random.choice(string.ascii_uppercase + string.digits) for _ in range(1000)
)
text_area.set_value(value=random_text)
@button_clean_input.click
def clear():
text_area.set_value(value="")
```
---
# Agent Instructions: Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.
Perform an HTTP GET request on the current page URL with the `ask` query parameter:
```
GET https://developer.supervisely.com/app-development/widgets/text-elements/textarea.md?ask=
```
The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.
Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
