How to remove an item or items correctly for listview?

Question

I modify "ListView interaction model sample" scenario 1(add to cart) to test remove function of listview.
Here is the my test code.

Rewrite scenarioOneAddToCart function as below.

function scenarioOneAddToCart() {
   var lvObject = WinJS.UI.getControl(id("listView1"));

   // Remove the set of items that are selected.
   var selectedItems = lvObject.selection.getAllIndices();
   for (var i = 0; i < selectedItems.length; i++) {
      lvObject.dataSource.remove(selectedItems[i]);
   }

}

The result is not correct after click AddToCart button to remove selected items except the first time.

How to remove an item or items correctly for listview?

 

 

 

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Aix