1 import Qt 4.7

     2 

     3 Item {

     4     Component {

     5         id: item1

     6         Item {

     7             objectName: "item1"

     8         }

     9     }

    10     Component {

    11         id: item2

    12         Item {

    13             objectName: "item2"

    14         }

    15     }

    16     Loader {

    17         id: loader

    18         sourceComponent: item1

    19     }

    20     Connections {

    21         objectName: "connections"

    22         target: loader.item

    23         onWidthChanged: loader.sourceComponent = item2

    24     }

    25 }