Windows Phone Navigation - 回传到之前的页面 [英] Windows Phone Navigation - Passing back to the page before

问题描述

我想点击一个按钮将我带到一个页面，然后单击一个列表框项，单击新页面上的一个按钮并将其传递回之前的页面，而不创建第一页的新 URI.

I would like to click on a button to take me to a page , then click on a listbox item, click on a button on the new page and pass it back to the page before without creating a new URI of the first page.

        **First Page**
        private void btnAddExistingMember_Click(object sender, RoutedEventArgs e)
        {
              NavigationService.Navigate(new Uri("/ChooseMember.xaml", UriKind.Relative));
        }

        **Second page after choosing listbox value**
        private void btnAddSelected_Click(object sender, RoutedEventArgs e)
        {
              Member currMember = (Member)lstMembers.SelectedItem;
              string memberID = currMember.ID.ToString();
              //navigate back to first page here passing memberID
        }

可以吗?

谢谢

推荐答案

您可以将成员存储在 App.xaml.cs 文件中.这是应用程序中所有文件均可访问的通用文件.这就像一个全局变量.

You can store the member in the App.xaml.cs file. This is common file accesssible for all files in the application. This works like a global variable.

//App.xaml.cs
int datafield ;

//Page1xaml.cs
(App.Current as App).dataField =10;

//Page2.xaml.cs
int x =  (App.Current as App).dataField 

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