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How to prevent multi selection on SmartFilterBar?

I have the following SmartFilterBar: enter image description here

As you can see on the input field, multi selection is possible. How can I prevent multi selection on the field?

I tried: 

<smartFilterBar:ControlConfiguration key="ClassType" filterType="smartFilterBar:FilterType.single" visibleInAdvancedArea="true" preventInitialDataFetchInValueHelpDialog="false"></smartFilterBar:ControlConfiguration>
<smartFilterBar:ControlConfiguration key="ClassNum" filterType="smartFilterBar:FilterType.single" visibleInAdvancedArea="true" preventInitialDataFetchInValueHelpDialog="false"></smartFilterBar:ControlConfiguration>

But it does not work.

Solution

  • There is an annotation which controls this. See this.

       <Annotation Term="com.sap.vocabularies.Common.v1.FilterExpressionRestrictions" >
  <Collection>
     <Record>
        <PropertyValue Property="Property" PropertyPath="Customer" />
        <PropertyValue Property="AllowedExpressions" EnumMember="com.sap.vocabularies.Common.v1.FilterExpressionType/SingleValue" />
     </Record>
     <Record>
        <PropertyValue Property="Property" PropertyPath="CompanyCode" />
        <PropertyValue Property="AllowedExpressions" EnumMember="com.sap.vocabularies.Common.v1.FilterExpressionType/SingleValue" />
     </Record>
  </Collection>

    Refer https://sapui5.hana.ondemand.com/sdk/#/api/sap.ui.comp.smartfilterbar.SmartFilterBar/annotations/Summary and search for 'FilterExpressionType' for more detail.