Windows Phone 8.1 - Page Navigation

Question

Coming from Windows Phone 8 I have never thought there will be a lot of changes done to the Windows Phone 8.1 code. Basically I\'m just wondering h

Answer 1

To send multiple parameters: Its quite late to answer but might help someone. You can create a custom class, set your parameters in it and send its object as a parameter to your target page.

For example. Your custom class:

public class CustomDataClass
{
public string name;
public string email;
} 

CustomDataClass myData = new CustomDataClass();
myData.name = "abc";
myData.email = "abc@hotmail.com";

Frame.Navigate(typeof(SecondPage), myData);

And then on the target page you can retrieve in OnNavigatedTo function like this:

protected override void OnNavigatedTo(NavigationEventArgs e)
{
CustomDataClass myData2 = e.Parameter as CustomDataClass;
string name = myData2.name;
string email = myData2.email;
}

Hope it helps.

Answer 2

In Windows Phone 8.1, Page Navigation method is like this:

Frame.Navigate(typeof(SecondPage), param);

It means that you will navagate to 'SecondPage', and pass 'param' (a class based on object).

If you needn't to pass any parameters, You can use this:

Frame.Navigate(typeof(SecondPage));

You can find the documentation for this MSDN link

Answer 3

In case you want to go back you can use:

if(this.Frame.CanGoBack)
{
this.Frame.GoBack();
}

If you want to go back on the click of back button, you need to override the hardwarebutton event:

HardwareButtons.BackPressed += HardwareButtons_BackPressed;

void HardwareButtons_BackPressed(object sender, BackPressedEventArgs e)
        {
            Frame rootFrame = Window.Current.Content as Frame;
            if(rootFrame != null && rootFrame.CanGoBack)
            {
                rootFrame.GoBack();
                e.Handled = true;
            }

        }

Make sure to set e.Handled to true.

Answer 4

// Navigation Without parameters

this.Frame.Navigate(typeof(SecondPage));



// Navigation with parameters

this.Frame.Navigate(typeof(SecondPage),MyParameters);