Magento 2 : remove delete image checkbox from admin edit form

Question

I have add an image upload field in my modules edit form using-

$fieldset->addField(
    'image',
    'image',
    [
        'name' => 'image',
        'label' => __('Image'),
        'id' => 'image',
        'title' => __('Image'),
        'class' => 'required-entry',
        'required' => true,
    ]
);

While editing row it displays checkbox to delete image, I have only one image upload field and that is required also. So I want to remove this checkbox. How can I remove this checkbox?

Answer 1

As @Manashvi Suggested I tried to solve it the way it was done in Magento 1.x and it worked. I created a custom renderer for the image. and created a class in my module [Namespace]_[Module]_Block_Adminhtml_Helper_Image_Required with this content

class Required extends \Magento\Framework\Data\Form\Element\Image
{
    protected function _getDeleteCheckbox()
    {
        return '';
    }
}

Then in my form block, right above field added this lines

$fieldset->addType('required_image', 'Namespace\Module\Block\Adminhtml\Helper\Image\Required');

and defined field like this:

$fieldset->addField(
    'image',
    'required_image',               [
    'name' => 'image',
    'label' => __('Image'),
    'id' => 'image',
    'title' => __('Image'),
    'class' => 'required-entry',
    'required' => true,
    ]
);