我想在我的 magento2 模块中显示记录列表。数据已成功加载,但加载进度条从未消失:

我的 ui_component 文件名为:paymentconfirmations_paymentconfirmation_listing.xml:
<listing xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Ui:etc/ui_configuration.xsd">
<argument name="data" xsi:type="array">
<item name="js_config" xsi:type="array">
<item name="provider" xsi:type="string">paymentconfirmations_paymentconfirmation_listing.paymentconfirmations_paymentconfirmation_listing_data_source</item>
<item name="deps" xsi:type="string">paymentconfirmations_paymentconfirmation_listing.paymentconfirmations_paymentconfirmation_listing_data_source</item>
</item>
<item name="spinner" xsi:type="string">blog_post_columns</item>
</argument>
<dataSource name="paymentconfirmations_paymentconfirmation_listing_data_source">
<argument name="dataProvider" xsi:type="configurableObject">
<argument name="class" xsi:type="string">PaymentConfirmationDataProvider</argument>
<argument name="name" xsi:type="string">paymentconfirmations_paymentconfirmation_listing_data_source</argument>
<argument name="primaryFieldName" xsi:type="string">id</argument>
<argument name="requestFieldName" xsi:type="string">id</argument>
<argument name="data" xsi:type="array">
<item name="config" xsi:type="array">
<item name="update_url" xsi:type="url" path="mui/index/render"/>
</item>
</argument>
</argument>
<argument name="data" xsi:type="array">
<item name="js_config" xsi:type="array">
<item name="component" xsi:type="string">Magento_Ui/js/grid/provider</item>
</item>
</argument>
</dataSource>
<container name="listing_top">
<argument name="data" xsi:type="array">
<item name="config" xsi:type="array">
<item name="template" xsi:type="string">ui/grid/toolbar</item>
</item> …Run Code Online (Sandbox Code Playgroud)