Expose ListModel role as property

fludwig

Hi everybody,

currently I'm working on an TextInput component with a binding to a model. Therefore I wanted to expose the responsible role for the ListItem as an property so that I can reuse the component multiple times.

Here the code snippets (only relevant stuff, model is named "myListModel")

MyInput.qml:
@import QtQuick 1.1

Item {
property variant modelRole: xval // also with string this doesn't work

 TextInput {
      text: myListModel.get(randomId...).modelRole
 }

}
@

MAIN:
@import QtQuick 1.1
Rectangle {
id: root

 MyInput {
      modelRole: xval
 }

 MyInput {
      modelRole: yval
 }

 MyInput {
      modelRole: anotherrole
 }

}
@

with the string as property I get

@Unable to assign [undefined] to QString text (in myTextInput.qml on the line of the text assignment)@

and without the string (written like a variable see example above) I get additionally:

@Reference Error: Can't find variable: xval (in myTextInput.qml on the line of definition of the property)@

I found already something that worked with a model: http://comments.gmane.org/gmane.comp.lib.qt.qml/1778 but there is nothing about exposing a role.

I think the main problem is the type of the property, but what is the appropiate property type for this case?

Best regards
Florian