Adminhtml textarea field doesn't accept maxlength

[rafaelstz]

Preconditions (*)

When I use textarea field type I can't use the attribute maxlenght, but when I use text I can use it.

File: app/code/MyCompany/MyModule/Block/Adminhtml/Manage/Edit/Form.php

Steps to reproduce (*)

Textarea

Actual result (*)

$fieldset->addField(
    'notes',
    'textarea',
    [
        'label' => __('Notes'),
        'name' => 'notes',
        'maxlength' => '70'
    ]
);
### Expected result (*)

Text

$fieldset->addField(
    'notes',
    'text',
    [
        'label' => __('Notes'),
        'name' => 'notes',
        'maxlength' => '70'
    ]
);

[magento-engcom-team]

Hi @rafaelstz. Thank you for your report.
To help us process this issue please make sure that you provided the following information:

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Please make sure that the issue is reproducible on the vanilla Magento instance following Steps to reproduce. To deploy vanilla Magento instance on our environment, please, add a comment to the issue:

@magento-engcom-team give me 2.3-develop instance - upcoming 2.3.x release

For more details, please, review the Magento Contributor Assistant documentation.

@rafaelstz do you confirm that you was able to reproduce the issue on vanilla Magento instance following steps to reproduce?

• yes
• no

[magento-engcom-team]

Hi @engcom-backlog-nazar. Thank you for working on this issue.
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[magento-engcom-team]

✅ Confirmed by @engcom-backlog-nazar
Thank you for verifying the issue. Based on the provided information internal tickets MAGETWO-98756, MAGETWO-98757 were created

Issue Available: @engcom-backlog-nazar, You will be automatically unassigned. Contributors/Maintainers can claim this issue to continue. To reclaim and continue work, reassign the ticket to yourself.

[magento-engcom-team]

Hi @kisroman. Thank you for working on this issue.
Looks like this issue is already verified and confirmed. But if you want to validate it one more time, please, go though the following instruction:

• 1. Add/Edit Component: XXXXX label(s) to the ticket, indicating the components it may be related to.

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[magento-engcom-team]

Hi @rafaelstz. Thank you for your report.
The issue has been fixed in #21816 by @kisroman in 2.3-develop branch
Related commit(s):

• 1dc63e8becdceb7ec50560c30af14e74cdd355d1
• 4a0fb16a2fdd4082299cb14a9b0e1f5f48504b2c
• 149294b87a63ef89da774862d5ebcacee47975ff

The fix will be available with the upcoming 2.3.2 release.