Magento2 | Add select-box with search/filter option | Auto suggestor

Question

I am try to add a search bar to the product custom dropdown attribute. I am able to add it using xml and data is also getting saved, but after loading the product again, it is not showing in admin.

Can some please help

I am following this link as well

Magento 2 Add select-box with search/filter option

Here is my xml code

<field name="xxnmi_project">
            <argument name="data" xsi:type="array">
                <item name="options" xsi:type="object">XYZ\ImportProjectData\Model\Attribute\Source\Project</item>
                <item name="config" xsi:type="array">
                    <item name="label" xsi:type="string" translate="true">Project</item>
                    <item name="componentType" xsi:type="string">field</item>
                    <item name="formElement" xsi:type="string">select</item>
                    <item name="component" xsi:type="string">Magento_Ui/js/form/element/ui-select</item>
                    <item name="elementTmpl" xsi:type="string">ui/grid/filters/elements/ui-select</item>
                    <item name="dataScope" xsi:type="string">xxnmi_project</item>
                    <item name="filterOptions" xsi:type="boolean">true</item>
                    <item name="showCheckbox" xsi:type="boolean">true</item>
                    <item name="chipsEnabled" xsi:type="boolean">false</item>
                    <item name="disableLabel" xsi:type="boolean">false</item>
                    <item name="multiple" xsi:type="boolean">false</item>
                    <item name="sortOrder" xsi:type="number">70</item>
                    <item name="listens" xsi:type="array">
                        <item name="newOption" xsi:type="string">toggleOptionSelected</item>
                    </item>
                    <item name="required" xsi:type="boolean">false</item>
                    <item name="source" xsi:type="string">conditions</item>
                    <item name="validation" xsi:type="array">
                        <item name="required-entry" xsi:type="boolean">false</item>
                    </item>
                </item>
            </argument>
        </field>

Answer 1

You need to implement a DataProvider (DataSource) to your component. The DataProvider has the responsability to take the values from backend and set as a default value to your component.

Take a look at this: https://devdocs.magento.com/guides/v2.4/ui_comp_guide/concepts/ui_comp_data_source.html