63    virtual bool isValid() 
const;
 
   69    QString toString( 
bool defaultValue = 
false ) 
const;
 
   77    QStringList toStringList( 
char delimiter = 
',', 
bool skipEmptyParts = 
true ) 
const;
 
   86    QList<int> toIntList( 
bool &ok, 
char delimiter = 
',', 
bool skipEmptyParts = 
true ) 
const;
 
   95    QList<double> toDoubleList( 
bool &ok, 
char delimiter = 
',', 
bool skipEmptyParts = 
true ) 
const;
 
  104    QList<QColor> toColorList( 
bool &ok, 
char delimiter = 
',', 
bool skipEmptyParts = 
true ) 
const;
 
  113    QList<QgsGeometry> toGeomList( 
bool &ok, 
char delimiter = 
',', 
bool skipEmptyParts = 
true ) 
const;
 
  120    QStringList toOgcFilterList() 
const;
 
  127    QStringList toExpressionList() 
const;
 
  141    int toInt( 
bool &ok ) 
const;
 
  148    double toDouble( 
bool &ok ) 
const;
 
  161    QColor toColor( 
bool &ok ) 
const;
 
  169    QUrl toUrl( 
bool &ok ) 
const;
 
  177    QString loadUrl( 
bool &ok ) 
const;
 
  184    static void raiseError( 
const QString &msg );