wpf - Selection Changed IsPostBack or refresh -

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is there way selectionchangeevent refreshed after selecting item? i'm having trouble on windows phone application.

here scenario, have 3 items in combo box, when select item navigate page. now, if select item 1 navigated item 1 page, if hit button, click item 1 again, not navigate anymore or event not fire.

is there remedy please? have wasted 3days resolve this. in advance help. thanks.


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