GdaDataModelIter
@gdadatamodeliter: the object which received the signal.
@gdadatamodeliter: the object which received the signal.
@arg1:
@model:
@Returns:
@iter:
@Returns:
@iter:
@row:
@Returns:
@iter:
@Returns:
@iter:
@Returns:
@iter:
@Returns:
@iter:
@iter:
@param:
@Returns:
@iter:
@col:
@Returns: