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schema_version: "1"
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title: liveAgent:clientChatInput
collection: developer
version: current
locale: en-us
portal_url: https://docs.salesforce.com/developer/current/en-us/platform/salesforce-pages-developers-guide/guides/pages/components/pages-compref-liveagent-clientchatinput.md
canonical_url: https://developer.salesforce.com/docs/platform/salesforce-pages-developers-guide/guide/pages-compref-liveagent-clientchatinput.html
source_site: developer.salesforce.com
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  - Visualforce Developer Guide
  - Platform Developer Content
---

# liveAgent:clientChatInput

The text box in a chat window where a visitor types messages to an agent.

Must be used within `<liveAgent:clientChat>`. Each chat window can have only one input box.

## Attributes

|Attribute Name|Attribute Type|Description|Required?|API Version|Access|
|--------------|--------------|-----------|---------|-----------|------|
|`autoResizeElementId`|String|Specifies the HTML element that should be dynamically resized when the transcript exceeds a certain length.| |24.0||
|`id`|String|An identifier that allows the component to be referenced by other components in the page.| |14.0|global|
|`rendered`|Boolean|A Boolean value that specifies whether the component is rendered on the page. If not specified, this value defaults to true.| |14.0|global|
|`useMultiline`|Boolean|Specifies whether a customer chat window supports a multiple-line text input field (true) or not (false).| |24.0||

**See Also**  


-   [liveAgent:clientChat](https://developer.salesforce.com/docs/platform/salesforce-pages-developers-guide/guide/pages-compref-liveagent-clientchat.md)