> ## Documentation Index
> Fetch the complete documentation index at: https://cometchat-22654f5b-docs-llms-scoped-indexes.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Radio Button Element

> Radio Button Element — CometChat documentation.

The `RadioButtonElement` class is utilised to create a single selection input element in a user interface.

### Parameters

| Name | Type | Description |
| - | - | - |
| **elementId** | `string` | Used to set a unique ID for the element |
| **label** | `string` | Used to set a label for the element |
| **options** | `[OptionElement]` | Used to set options for the element |
| **optional** | `bool` | Used to set an optional flag for the element |
| **defaultValue** | `String` | Used to set a default value for the element |

### Class Usage

Here's how to create an instance of the `RadioButtonElement` class:

<Tabs>
  <Tab title="Swift">
    ```swift theme={null}
    let optionElement = OptionElement()
    optionElement.id = "Male"
    otionElement.value = "Male"
    let radioButtonElement = RadioButtonElement()
    radioButtonElement.elementId = "gender"
    radioButtonElement.label = "Gender"
    radioButtonElement.options.append(optionElement)
    ```
  </Tab>
</Tabs>


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