How to change and update model of GridView dynamically?

[Ibrahim]

Hi;
I have a GridView:
MyGrid.qml:

GridView {
  id: gridView
  model: 2
  delegate: Rectangle {
    id: rect
    width: 70
    height: 70
    MouseArea { anchors.fill: parent; onClicked: rect.visible = false }
  }
}

model of GridView is 2 at the moment. I have this QML file:
MyPopup.qml:

Popup {
  id: popup
  background: Rectangle {
    width: 250
    height: 250
    color: 'red'
    Button {
      id: btn
      onClicked: {
        gridView.model = gridView.model * 2; // I changed model
        popup.close(); // Then I closed popup
      }
    }
  }
}

This popup is opening if visibles of all rectangles are false.
I changed model of GridView but when popup closed, I can't see any on the screen. Because there is still GridView with its old model (and you remember, visibles of rectangles are false).
I want when model of GridView changed, I saw new GridView with its new model. How can I do it? Thanks.

[Tirupathi Korla]

HI @Ibrahim
There are many ways to do it.
You might be creating MyGrid and MyPopup in some qml file. Use gird.gridView.model instead of gridView.model inside popup button onclick.

property int girdSize: 2
Mygrid{
id: grid

}
MyPopup{
id:popup
}