---
tags: [gradio-custom-component, SimpleTextbox, test]
title: gradio_myfirstcomponent
short_description: Hello World for Gradio Component
colorFrom: blue
colorTo: yellow
sdk: gradio
pinned: false
app_file: space.py
---
# `gradio_myfirstcomponent`
Hello World for Gradio Component
## Installation
```bash
pip install gradio_myfirstcomponent
```
## Usage
```python
import gradio as gr
from gradio_myfirstcomponent import MyFirstComponent
example = MyFirstComponent().example_value()
demo = gr.Interface(
lambda x:x,
MyFirstComponent(), # interactive version of your component
MyFirstComponent(), # static version of your component
# examples=[[example]], # uncomment this line to view the "example version" of your component
)
if __name__ == "__main__":
demo.launch()
```
## `MyFirstComponent`
### Initialization
name | type | default | description |
---|---|---|---|
value |
```python str | Callable | None ``` | None |
default text to provide in textbox. If a function is provided, the function will be called each time the app loads to set the initial value of this component. |
placeholder |
```python str | None ``` | None |
placeholder hint to provide behind textbox. |
label |
```python str | I18nData | None ``` | None |
the label for this component, displayed above the component if `show_label` is `True` and is also used as the header if there are a table of examples for this component. If None and used in a `gr.Interface`, the label will be the name of the parameter this component corresponds to. |
every |
```python Timer | float | None ``` | None |
Continously calls `value` to recalculate it if `value` is a function (has no effect otherwise). Can provide a Timer whose tick resets `value`, or a float that provides the regular interval for the reset Timer. |
inputs |
```python Component | Sequence[Component] | set[Component] | None ``` | None |
Components that are used as inputs to calculate `value` if `value` is a function (has no effect otherwise). `value` is recalculated any time the inputs change. |
show_label |
```python bool | None ``` | None |
if True, will display label. |
scale |
```python int | None ``` | None |
relative size compared to adjacent Components. For example if Components A and B are in a Row, and A has scale=2, and B has scale=1, A will be twice as wide as B. Should be an integer. scale applies in Rows, and to top-level Components in Blocks where fill_height=True. |
min_width |
```python int ``` | 160 |
minimum pixel width, will wrap if not sufficient screen space to satisfy this value. If a certain scale value results in this Component being narrower than min_width, the min_width parameter will be respected first. |
interactive |
```python bool | None ``` | None |
if True, will be rendered as an editable textbox; if False, editing will be disabled. If not provided, this is inferred based on whether the component is used as an input or output. |
visible |
```python bool ``` | True |
If False, component will be hidden. |
rtl |
```python bool ``` | False |
If True and `type` is "text", sets the direction of the text to right-to-left (cursor appears on the left of the text). Default is False, which renders cursor on the right. |
elem_id |
```python str | None ``` | None |
An optional string that is assigned as the id of this component in the HTML DOM. Can be used for targeting CSS styles. |
elem_classes |
```python list[str] | str | None ``` | None |
An optional list of strings that are assigned as the classes of this component in the HTML DOM. Can be used for targeting CSS styles. |
render |
```python bool ``` | True |
If False, component will not render be rendered in the Blocks context. Should be used if the intention is to assign event listeners now but render the component later. |
key |
```python int | str | tuple[int | str, ...] | None ``` | None |
in a gr.render, Components with the same key across re-renders are treated as the same component, not a new component. Properties set in 'preserved_by_key' are not reset across a re-render. |
preserved_by_key |
```python list[str] | str | None ``` | "value" |
A list of parameters from this component's constructor. Inside a gr.render() function, if a component is re-rendered with the same key, these (and only these) parameters will be preserved in the UI (if they have been changed by the user or an event listener) instead of re-rendered based on the values provided during constructor. |