下面的代码是我的customer_listing.xml，当选中复选框从网格中导出时，导出csv不起作用。
<listing xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Ui:etc/ui_configuration.xsd">
<columns name="customer_columns" class="Magento\Customer\Ui\Component\Listing\Columns">
<column name="customer_clv" class="Vendorname\Modulename\Ui\Component\Listing\Column\Customerclv">
<argument name="data" xsi:type="array">
<item name="config" xsi:type="array">
<item name="indexField" xsi:type="string">entity_id</item>
<item name="filter" xsi:type="boolean">true</item>
<item name="sorting" xsi:type="string">asc</item>
<item name="sortable" xsi:type="boolean">true</item>
<item name="editor" xsi:type="string">text</item>
<item name="label" xsi:type="string" translate="true">Customer Lifetime Value</item>
<item name="sortOrder" xsi:type="number">81</item>
</item>
</argument>
</column>
<column name="predicted_average_profit" class="Vendorname\Modulename\Ui\Component\Listing\Column\Customerclv">
<argument name="data" xsi:type="array">
<item name="config" xsi:type="array">
<item name="indexField" xsi:type="string">entity_id</item>
<item name="filter" xsi:type="boolean">true</item>
<item name="sorting" xsi:type="string">asc</item>
<item name="sortable" xsi:type="boolean">false</item>
<item name="editor" xsi:type="string">text</item>
<item name="label" xsi:type="string" translate="true">Predicted Average Transaction Value</item>
<item name="sortOrder" xsi:type="number">82</item>
</item>
</argument>
</column>
<column name="predicted_no_of_purchases" class="Vendorname\Modulename\Ui\Component\Listing\Column\Customerclv">
<argument name="data" xsi:type="array">
<item name="config" xsi:type="array">
<item name="indexField" xsi:type="string">entity_id</item>
<item name="filter" xsi:type="boolean">true</item>
<item name="sorting" xsi:type="string">asc</item>
<item name="sortable" xsi:type="boolean">false</item>
<item name="editor" xsi:type="string">text</item>
<item name="label" xsi:type="string" translate="true">Predicted No Of Purchases for next 10 weeks</item>
<item name="sortOrder" xsi:type="number">83</item>
</item>
</argument>
</column>
<column name="probability_no_of_purchases" class="Vendorname\Modulename\Ui\Component\Listing\Column\Customerclv">
<argument name="data" xsi:type="array">
<item name="config" xsi:type="array">
<item name="indexField" xsi:type="string">entity_id</item>
<item name="filter" xsi:type="boolean">true</item>
<item name="sorting" xsi:type="string">asc</item>
<item name="sortable" xsi:type="boolean">false</item>
<item name="editor" xsi:type="string">text</item>
<item name="label" xsi:type="string" translate="true">Probability</item>
<item name="sortOrder" xsi:type="number">84</item>
</item>
</argument>
</column>
<actionsColumn name="actions" class="Vendorname\Modulename\Ui\Component\Listing\Column\ClvActions">
<settings>
<indexField>entity_id</indexField>
</settings>
</actionsColumn>
</columns> </listing>