How to Navigate Back from Popup in Windows Phone8

Question

here i have this problem with popup window, i popup an usercontrol in a dll and call this dll in an app, but it shows upon a black page that i have no idear where its from. when i push the '<-' button ,the app directly exit... i can't go back to the app's mainpage where calls it. I wonder how can I return from the popup window. I tried to hide the popup window, but it doesn't go back to app's mainpage.

public void change_PIN(OnCCB_ChangeUserPINCall changeUserPINCall) 
{
    Popup ppChangePIN = new Popup();
    ChangePIN changePIN = new ChangePIN();
    ppChangePIN.Child = changePIN;
    ppChangePIN.IsOpen = true;
}

How can I set ppChangePIN.IsOpen=false inside popup window .cs to make it disappear?

Answer 1

Handle back key press event of back button like

step1: first set one flag when popup is open like **bool PopupOpen=True**

step2: When popup is close at that time PopupOpen=False

 protected override void OnBackKeyPress(System.ComponentModel.CancelEventArgs e)
    {
        if(PopupOpen== True)
        { 
          ppChangePIN.IsOpen=false;

         PopupOpen=False;
         e.Cancel = true;
        }
        else
        {}
    }

If any query let me know...

hope it work for you