model: (myCondition ? [0] : []).concat(DB.getList()) Take care: DB.getList().concat([...]) will not work you would need to convert the QList to JS array first
[image: bodycad] <https://www.bodycad.com/> Jerome Godbout Software Developer 2035 rue du Haut-Bord, Québec, QC, Canada. G1N 4R7 T: +1 418 527-1388 E: jer...@bodycad.com www.bodycad.com The contents of this email message and any attachments are intended solely for the addressee(s) and may contain confidential and/or privileged information and may be legally protected from disclosure. If you are not the intended recipient of this message or their agent, or if this message has been addressed to you in error, please immediately alert the sender by reply email and then delete this message and any attachments. If you are not the intended recipient, you are hereby notified that any use, dissemination, copying, or storage of this message or its attachments is strictly prohibited. Le contenu de ce message et les pièces jointes sont destinés uniquement pour le(s) destinataire(s) et peuvent contenir des informations confidentielles et / ou privilégiées qui peuvent être protégées légalement contre toute divulgation. Si vous n'êtes pas le destinataire de ce message ou son agent, ou si ce message vous a été adressé par erreur, s’il vous plaît avertir immédiatement l'expéditeur par courriel de réponse, puis supprimer ce message et les pièces jointes. Si vous n'êtes pas le destinataire prévu, vous êtes par la présente informé que toute utilisation, diffusion, copie, ou stockage de ce message ou de ses pièces jointes est strictement interdit. On Wed, Nov 29, 2017 at 2:41 PM, Oleg Evseev <ev.m...@gmail.com> wrote: > Hi all, > > I would like to push an empty object in front of objects list model of > ComboBox. > I can do this in c++: > > QList<QObject*> SomeClass::getList() { > QList<QObject*> list = db.getList(); > list.push_front(Q_NULLPTR); > return list; > } > > then set it as model for ComboBox: > > model: SomeClass.getList() > > And it works, I then can check modelData for null in delegate. > > But I'm interesting if there is any way I could do it in qml, something > like: > > model: [0, (or undifined), DB.getList()] > or > model: {0, (or undifined), DB.getList()} > > or push empty object in front of list in Component.onCompleted? > > Thanks in advance for help! > > -- > With regards, Oleg. > > _______________________________________________ > Interest mailing list > Interest@qt-project.org > http://lists.qt-project.org/mailman/listinfo/interest > >
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