23 return QStringLiteral(
"List" );
29 Q_UNUSED( fieldIndex )
39 const QVariantList list = value.toList();
40 for (
const QVariant &val : list )
42 if ( !result.isEmpty() )
43 result.append(
", " );
44 result.append( val.toString() );
static QString nullRepresentation()
Returns the string used to represent the value NULL throughout QGIS.
static bool isNull(const QVariant &variant, bool silenceNullWarnings=false)
Returns true if the specified variant should be considered a NULL value.
Represents a vector layer which manages a vector based data sets.