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How can I limit the length of <h:inputTextarea>? For <h:inputText> it works fine with maxlength attribute. However, this attribute is unavailable in <h:inputTextarea>.
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Then use JavaScript to limit user input: $(function() { $("textarea[maxlength]"). bind('input propertychange', function() { var maxLength = $(this). attr('maxlength'); if ($(this).
The maxlength attribute defines the maximum number of characters (as UTF-16 code units) the user can enter into an <input> or <textarea> . This must be an integer value 0 or higher. If no maxlength is specified, or an invalid value is specified, the input or textarea has no maximum length.
The HTML <Textarea>maxlength attribute is used to specify the maximum number of characters enters into the Textarea element. Attribute Value: number: It contains single value number which allows the maximum number of character in Textarea element. Its default value is 524288.
The maxlength attribute specifies the maximum length (in characters) of a text area.
If you're using HTML5 and JSF 2.2+, specify it as a passthrough attribute.
<html ... xmlns:a="http://xmlns.jcp.org/jsf/passthrough"> <h:inputTextarea value="#{bean.text}" a:maxlength="2000" /> If you're using HTML5, but not JSF 2.2 yet, use OmniFaces Html5RenderKit to recognize new HTML5 attributes in JSF 2.0/2.1.
<h:inputTextarea value="#{bean.text}" maxlength="2000" /> If you're on HTML4, then it's already not supported by HTML itself. It's only supported on <input> element, not on <textarea> element. That's also why there's no such attribute on the JSF representation of this HTML element. You need to solve this requirement at the client side using JS and/or at the server side using JSF. JS enables you to instantly validate the length and ignore all other characters. JSF enables you to validate it as well for the case that the client disabled or hacked the JS code. Best would be a combination of both.
Assuming that you've a
<h:inputTextarea value="#{bean.text}" styleClass="max"> <f:validateLength maximum="2000" /> </h:inputTextarea> here's how you could do the jQuery
$('textarea.max').keyup(function() { var $textarea = $(this); var max = 2000; if ($textarea.val().length > max) { $textarea.val($textarea.val().substr(0, max)); } }); 
<h:inputTextarea required="true" cols="50" rows="5" id=”aboutMe” value="#{person.aboutMe}”> <f:validateLength maximum="400" minimum="20"/> </h:inputTextarea> If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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