我正在创建一个基本的MCQ应用，其中2个MCQ以及选项显示在一个页面上，提交按钮在文本块的第二页上显示结果。
我使用的 using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Runtime.InteropServices.WindowsRuntime;
using Windows.Foundation;
using Windows.Foundation.Collections;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Controls.Primitives;
using Windows.UI.Xaml.Data;
using Windows.UI.Xaml.Input;
using Windows.UI.Xaml.Media;
using Windows.UI.Xaml.Navigation;
using Windows.UI.Popups;
// The Blank Page item template is documented at http://go.microsoft.com/fwlink/?LinkId=391641
namespace MCQ
{
/// <summary>
/// An empty page that can be used on its own or navigated to within a Frame.
/// </summary>
public sealed partial class MainPage : Page
{
public MainPage()
{
this.InitializeComponent();
this.NavigationCacheMode = NavigationCacheMode.Required;
}
/// <summary>
/// Invoked when this page is about to be displayed in a Frame.
/// </summary>
/// <param name="e">Event data that describes how this page was reached.
/// This parameter is typically used to configure the page.</param>
protected override void OnNavigatedTo(NavigationEventArgs e)
{
// TODO: Prepare page for display here.
// TODO: If your application contains multiple pages, ensure that you are
// handling the hardware Back button by registering for the
// Windows.Phone.UI.Input.HardwareButtons.BackPressed event.
// If you are using the NavigationHelper provided by some templates,
// this event is handled for you.
}
private void button_Click(object sender, RoutedEventArgs e)
{
string ans1 = "";
string ans2 = "";
if (radioButton.IsChecked == true)
{
ans1 = "Answer 1 is correct";
}
else
{
ans1 = "Answer 1 is incorrect";
}
if (radioButton2.IsChecked == true)
{
ans2 = "Answer 2 is correct";
}
else
{
ans2 = "Answer 2 is incorrect";
}
Frame.Navigate(typeof(Page2), ans1, ans2);
//textBlock3.Text = ans1 + " & " + ans2; ;
}
private void button1_Click(object sender, RoutedEventArgs e)
{
}
}
}
导航方法可以传递一个参数，但不能将多个参数传递到下一页。
这是我的代码：
ProductCategoriesWidget.include({
template: 'ProductCategoriesWidget',
perform_search: function(category, query, buy_result){
var products;
},
});
我得到的错误无法从字符串转换为windows.ui.xaml.media。第二个参数的navigation.transitioninfo，即ans2。
任何帮助都将被理解或将参数传递到下一页的替代方法。 谢谢！
答案 0 :(得分：0)
创建一个包含2个属性的新类，并将属性设置为文本块值。然后在导航时传递此对象。
创建有效负载类：
public class Payload
{
public string ans1 { get;set;}
public string ans2 { get;set;}
}
然后填充有效负载类：
Payload payload = new Payload();
payload.ans1 = textblock1.Text;
payload.ans2 = textblock2.Text;
然后，当您调用Navigate时，请传递您的有效负载实例：
this.Frame.Navigate(typeof(SecondPage),payload);