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Showing content from https://developers.arcgis.com/qt/cpp/api-reference/esri-arcgisruntime-codedvaluedomain.html below:

CodedValueDomain Class | ArcGIS Maps SDK for Qt

An appropriate list of values for a Field. More...

• List of all members, including inherited members

A coded value domain consists of a collection of coded values that are saved in the dataset. When a user is editing data, you can present the list of coded values for the fields (attributes) they edit, or validate their input values against the coded value domain before changes are saved. This ensures that the user maintains data integrity by only applying values that are in the codedValues.

You can create a coded value domain in a mobile geodatabase, if the mobile geodatabase was created in ArcGIS Pro or using Geodatabase::createAsync(const QString&, QObject*). To create a CodedValueDomain, you can create a CodedValueDomainDescription that has a collection of CodedValueDescription, by using CodedValueDomainDescription::CodedValueDomainDescription(const QString&, Esri::ArcGISRuntime::FieldType, const QList<Esri::ArcGISRuntime::CodedValueDescription*>&, QObject*). Next, you create the CodedValueDomain by calling Geodatabase::createDomainAsync(Esri::ArcGISRuntime::DomainDescription*) with the CodedValueDomainDescription.

Example:

Obtain coded values from a field's CodedValueDomain:

// Create service feature table
auto* featureTable = new ServiceFeatureTable(serviceUrl1, this);

// Connect to loadStatusChanged signal to access fields once loaded
connect(featureTable, &ServiceFeatureTable::loadStatusChanged, [featureTable](LoadStatus loadStatus)
{
    if (loadStatus == LoadStatus::Loaded)
    {
        Field field = featureTable->field("PRIMCAUSE");
        CodedValueDomain codedValueDomain = static_cast<CodedValueDomain>(field.domain());
        QString codedValue1 = codedValueDomain.codedValues().at(0).name();
        QString codedValue2 = codedValueDomain.codedValues().at(1).name();
        QString codedValue3 = codedValueDomain.codedValues().at(2).name();
        QString codedValue4 = codedValueDomain.codedValues().at(3).name();
    }
});

Relevant samples:

• Add features with contingent values: Create and add features whose attribute values satisfy a predefined set of contingencies.
• Configure subnetwork trace: Get a server-defined trace configuration for a given tier and modify its traversability scope, add new condition barriers and control what is included in the subnetwork trace result.
• Validate utility network topology: Demonstrates the workflow of getting the network state and validating the topology of a utility network.

See also CodedValue.

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