Magento\Backend\Block\Widget\Grid\Column\Renderer\Currency

[SchumacherFM]

In Magento\Backend\Block\Widget\Grid\Column\Renderer\Currency the render method is not using
\Magento\Backend\Block\Widget\Grid\Column\Renderer\AbstractRenderer::_getValue(Object $row)

    public function render(\Magento\Framework\Object $row)
    {
        if ($data = (string)$row->getData($this->getColumn()->getIndex())) {

What is the particular reason for relying on the retrieval method above? ;-)

Would be great if you can implement the _getValue() method as there are use cases for retrieving a computed value.

In Magento\Backend\Block\Widget\Grid\Column\Renderer::Number you have the correct useful implementation of _getValue() :-)

Thanks!

[SchumacherFM]

Sending a PR