I am developing a custom module for Magento 2.2.x which should allow users to associate products to custom entity.
What I would like to do is to show a product grid in the edit form of the custom entity where users can search and select which products associate the custom entity.
I already created the form with uicomponent, this is the layout XML (customentity_entity_edit.xml)
<page xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" layout="admin-1column"
xsi:noNamespaceSchemaLocation="urn:magento:framework:View/Layout/etc/page_configuration.xsd">
<body>
<referenceContainer name="page.main.actions">
<block class="Magento\Backend\Block\Store\Switcher" name="customentity_entity_look.store.switcher" template="Magento_Backend::store/switcher.phtml" >
<action method="setUseConfirm">
<argument name="params" xsi:type="string">1</argument>
</action>
</block>
</referenceContainer>
<referenceContainer name="content">
<uiComponent name="customentity_entity_look_form"/>
</referenceContainer>
</body>
</page>
This is the xml of the form (customentity_entity_look_form.xml)
<form xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Ui:etc/ui_configuration.xsd">
...
<fieldset name="main_fieldset">
<argument name="data" xsi:type="array">
<item name="config" xsi:type="array">
<item name="label" xsi:type="string" translate="true">Main Information</item>
</item>
</argument>
<field name="store_id">
<argument name="data" xsi:type="array">
<item name="config" xsi:type="array">
<item name="visible" xsi:type="boolean">true</item>
<item name="dataType" xsi:type="string">number</item>
<item name="formElement" xsi:type="string">hidden</item>
<!--<item name="default" xsi:type="number">0</item>-->
<item name="sortOrder" xsi:type="string">10</item>
<item name="source" xsi:type="string">main_fieldset</item>
</item>
</argument>
</field>
<field name="entity_id">
<argument name="data" xsi:type="array">
<item name="config" xsi:type="array">
<item name="visible" xsi:type="boolean">false</item>
<item name="dataType" xsi:type="string">text</item>
<item name="formElement" xsi:type="string">input</item>
<item name="source" xsi:type="string">main_fieldset</item>
</item>
</argument>
</field>
<field name="name">
<argument name="data" xsi:type="array">
<item name="config" xsi:type="array">
<item name="visible" xsi:type="boolean">true</item>
<item name="dataType" xsi:type="string">text</item>
<item name="label" xsi:type="string">Name</item>
<item name="formElement" xsi:type="string">input</item>
<item name="source" xsi:type="string">main_fieldset</item>
<item name="validation" xsi:type="array">
<item name="required-entry" xsi:type="boolean">true</item>
</item>
<item name="sortOrder" xsi:type="number">10</item>
<item name="scopeLabel" xsi:type="string">[STORE]</item>
</item>
</argument>
</field>
</fieldset>
<fieldset name="assign_products">
<argument name="data" xsi:type="array">
<item name="config" xsi:type="array">
<item name="label" xsi:type="string" translate="true">Assign Products</item>
<item name="collapsible" xsi:type="boolean">true</item>
<item name="sortOrder" xsi:type="number">40</item>
</item>
</argument>
<container name="assign_products_container" >
<argument name="data" xsi:type="array">
<item name="config" xsi:type="array">
<item name="sortOrder" xsi:type="number">60</item>
</item>
</argument>
<htmlContent name="html_content">
<argument name="block" xsi:type="object">\Vendor\Module\Block\To\Show\Product\Grid</argument>
</htmlContent>
</container>
</fieldset>
</form>
I don't know how to implement the block which should render the product grid (\Vendor\Module\Block\To\Show\Product\Grid)
I tried to follow this Magento 2 : How to add a product grid in custom module using ui component? but it throws several errors at runtime and it uses deprecated core classes.
Is there a standard way to show this control in a form of a custom module?
