Documentation v8.0.25

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Overview

Autosizeis a small, stand-alone script to automatically adjust textarea height. For full documentation please check the plugin's site.

Usage

Autosize's Javascript files are bundled in the global plugin bundles and globally included in all pages:

<link href="assets/plugins/global/plugins.bundle.css" rel="stylesheet" type="text/css"/>
<script src="assets/plugins/global/plugins.bundle.js"></script>

Initialization

Autosize's Javascript is globally included and bundled without our plugins bundle.
Autosize's is initialized by adding data-kt-autosize="true"HTML attribute within any textareaHTML element.
Autosize instances can also be controlled programmatically. See below for more info.
Autosize also supports event hooks. Please refer to the official documentationfor more info.

Basic Example

Here's an example of the textareaautomatically resizing base on the amount of text written in it.

Combine our extended .form-controlCSS classes to create quick and solid textarealayouts.

Basic autosize textarea

Solid autosize textarea

<!--begin::basic autosize textarea-->
<div class="rounded border d-flex flex-column p-10">
    <label for="" class="form-label">Basic autosize textarea</label>
    <textarea class="form-control" data-kt-autosize="true"></textarea>
</div>
<!--end::basic autosize textarea-->

<!--begin::solid autosize textarea-->
<div class="rounded border d-flex flex-column p-10">
    <label for="" class="form-label">Solid autosize textarea</label>
    <textarea class="form-control form-control form-control-solid" data-kt-autosize="true"></textarea>
</div>
<!--end::solid autosize textarea-->

Markup Reference

Autosize uses HTML attributes to initialize the autosize function. Here are the references for each below

HTML Attribute references

Name	Type	Description
`data-kt-autosize`	`mandatory`	Enables the current element as the Autosize component. Accepts `true`or `false`values.

Methods

All Autosize components can be initialized automatically through HTML attributes. However, it can also be programmatically intialized by ignoring the HTML attribute and manually initializing it via Javascript.

Name	Description
Static Methods
`Initialization`	Initializes Autosize instances by selecting the element required. This method can be used to initialize dynamicly populated Autosize instances(e.g: after Ajax request). `// Single node const autosize_element = document.querySelector('#kt_autosize'); autosize(autosize_element); // Nodelist const autosize_elements = document.querySelectorAll('.kt_autosize'); autosize(autosize_elements); // jQuery autosize($('.kt_autosize'));`
Public Methods
`update`	Triggers the height adjustment for an assigned textarea element. Autosize will automatically adjust the textarea height on keyboard and window resize events. There is no efficient way for Autosize to monitor for when another script has changed the textarea value or for changes in layout that impact the textarea element. `// Change value autosize_element.vlaue = "some value"; autosize.update(autosize_element);`
`destroy`	Removes Autosize and reverts any changes it made to the textarea element. `autosize.destroy(autosize_element);`