private void EditItem_Executed(object sender, ExecutedRoutedEventArgs e)
{
int idx = this.listBox.SelectedIndex;
var e2 = new ItemEventArgs(this.collection[idx]);
this.EditItem(this, e2);
if(!e2.Cancel){
this.collection[idx] = e2.Item;
this.listBox.SelectedIndex = idx;
}
}
private void AddItem_Executed(object sender, ExecutedRoutedEventArgs e)
{
var e2 = new ItemEventArgs();
this.AddItem(this, e2);
if(!e2.Cancel){
this.collection.Insert(this.listBox.SelectedIndex + 1, e2.Item);
if(this.listBox.SelectedIndex < 0){
this.listBox.SelectedIndex = 0;
}
}
}