<virtualType name="PageGridDataProvider"
             type="Magento\Framework\View\Element\UiComponent\DataProvider\DataProvider">
    <arguments>
        <argument name="collection" xsi:type="object" shared="false">
            Magento\Cms\Model\ResourceModel\Page\Collection
        </argument>
        <argument name="filterPool" xsi:type="object" shared="false">
            CmsGirdFilterPool
        </argument>
    </arguments>
</virtualType>

This is a virtual type configuration.

This configuration is for the base area. Base area configurations will apply to all the sub-applications.

This virtualType configuration tells the Object Manager when a user wants a virtual PageGridDataProvider object that it should return a Magento\Framework\View\Element\UiComponent\DataProvider\DataProvider object.

This configuration tells the Object Manager that when a user wants a PageGridDataProvider object that the following arguments should be used in the foo object's constructor.

• $collection = new Magento\Cms\Model\ResourceModel\Page\Collection (...)
• $filterPool = new CmsGirdFilterPool (...)

<virtualType name="BlockGridDataProvider"
             type="Magento\Framework\View\Element\UiComponent\DataProvider\DataProvider">
    <arguments>
        <argument name="collection" xsi:type="object" shared="false">
            Magento\Cms\Model\ResourceModel\Block\Collection
        </argument>
        <argument name="filterPool" xsi:type="object" shared="false">
            CmsGirdFilterPool
        </argument>
    </arguments>
</virtualType>

This is a virtual type configuration.

This configuration is for the base area. Base area configurations will apply to all the sub-applications.

This virtualType configuration tells the Object Manager when a user wants a virtual BlockGridDataProvider object that it should return a Magento\Framework\View\Element\UiComponent\DataProvider\DataProvider object.

This configuration tells the Object Manager that when a user wants a BlockGridDataProvider object that the following arguments should be used in the foo object's constructor.

• $collection = new Magento\Cms\Model\ResourceModel\Block\Collection (...)
• $filterPool = new CmsGirdFilterPool (...)