How way to check "SelectionChanged" of listview,... inside hub?

Hi Greg Heffey,

>>I got a problem is that when I changed "SelectedItem" on listbox then it could not access data  to Launch. I must changed value of combobox on xaml then It could access data to Launch.

I am not sure if I have misunderstood you, in my mind because you have used the following code inside the Combo_SelectionChanged event:

Launch.Source = await ProductComand.GetTopProduct(Items.Id, IdAb);

So if you do not change the value of the ComBobox, then the Combo_SelectionChanged event will not been fired, so this code (Launch.Source = await ProductComand.GetTopProduct(Items.Id, IdAb))will not been executed, then we can not access the data to the Launch.

>>I want if no change on combobox but changed on listbox then it could access data to Launch( keep seletedItem on combobox on the first  of app are loading.).

 If you want to implement the above function, please move this code(Launch.Source = await ProductComand.GetTopProduct(Items.Id, IdAb)) outside of the Combo_SelectionChanged event, for example you can put the code inside the Button Click event. In this way we can execute the Lauch.Source code without changing the SelectedItem of the ComboBox.
If I have misunderstood you, please feel free to let me know.

Best Regards,
Amy Peng

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