How to access textRole of combobox in different files

eswar

Hi

I used the Qt qml combox style example in the page link text.

I created the above code in MyCombobox.qml and assign the following property to access different files

property alias cbx_textRole:control.textRole
property alias cbx_model: control.model
In main.qml

MyComboboxQML{
cbx_model: nameModel
cbx_textRole:"Role"
}

it will produce the attached result

delegate: ItemDelegate {
width: control.width
contentItem: Text {
text: cbx_textRole
color: "#21be2b"
font: control.font
elide: Text.ElideRight
verticalAlignment: Text.AlignVCenter
}
highlighted: control.highlightedIndex === index
}

if assign the alias of text roles names, it will produce the similar attached result

How can i assign the c++ abstractmodel roles to the itemDelegate text ?

JonB

Admin: This question might be more appropriately placed in the QML forum....?

Christian Ehrlicher

@JonB Done :)

Gojir4

Hi @eswar,

I guess you need to implement roleNames() in your model, and then use the role you want from QML.

//.h

class CustomerModel : public QAbstractItemModel
{
...
public:
 enum CustomerRoles {
        UidRole = Qt::UserRole + 1,
        NameRole,
        LastNameRole,
        CompanyRole,
        MailAddressRole,
    };

    QHash<int, QByteArray> roleNames() const;
...
};

//.cpp
QHash<int, QByteArray> CustomerModel::roleNames() const
{
    QHash<int, QByteArray> roles;
    roles[UidRole] = "uid";
    roles[NameRole] = "name";
    roles[LastNameRole] = "lastName";
    roles[CompanyRole] = "company";
    roles[MailAddressRole] = "email";
    return roles;
}

eswar

Hi @Gojir4

Thanks for the reply. I have implement the above mentioned roles in my QAbstractmodel in C++ named as "Role" only. So only i can use the name as "Role" in textRole. But i can't access the model data in qml. It will display similar to the above attached image.

Gojir4

@eswar said in How to access textRole of combobox in different files:

I have implement the above mentioned roles in my QAbstractmodel in C++ named as "Role" only. So only i can use the name as "Role" in textRole

Sorry, I don't understand. Can you show code of your model ?