我在Windows Phone 7.1上忙于一个小项目。我正在尝试建立一个基于测验的游戏。我在Visual Studio 2010中使用C＃。
我希望问题和答案以随机顺序出现。每个问题都会出现一个图像，并且在五个问题之后游戏结束。如果你犯了一个错误，那你就是失败者。
这是我到目前为止所得到的：
namespace PhoneApp3
{
public partial class MainPage : PhoneApplicationPage
{
private List<Quiz> _Questions = null;
private const int _QuestionCount = 7;
private Quiz _CurrentQuestion = null;
private int _CurrentQuestionIndex = 0;
private int _Missed = 0;
private DateTime _StartTime = DateTime.UtcNow;
public MainPage()
{
InitializeComponent();
_Questions = new List<Quiz>();
_Questions.Add(new Quiz("What is the height of the Eiffel Tower?", "324 meters", "/PhoneApp3/Images/Eiffel_Tower.png", new[] { "176 meters", "257 meters" }));
_Questions.Add(new Quiz("Where can you find the Big Ben?", "In London", "/PhoneApp3/Images/Big_Ben.png", new[] { "In Berlin", "In Copenhagen" }));
_Questions.Add(new Quiz("Where can you find the Tower of Pisa?", "In Italy", "/PhoneApp3/Images/Tower_of_Pisa.png", new[] { "In Spain", "In Greece" }));
_Questions.Add(new Quiz("What is the largest city of Europe?", "Istanbul", "/PhoneApp3/Images/City.png", new[] { "Moscow", "London" }));
_Questions.Add(new Quiz("Which country is the host of the next UEFA European Championship (2016)?", "France", "/PhoneApp3/Images/UEFA.png", new[] { "Spain", "Germany" }));
_Questions.Add(new Quiz("Who painted The Night Watch?", "Rembrandt van Rijn", "/PhoneApp3/Images/Night_Watch.png", new[] { "Vincent van Gogh", "Pablo Picasso" }));
_Questions.Add(new Quiz("Which is the smallest country of Europe?", "Iceland", "/PhoneApp3/Images/Eiffel_Tower.png", new[] { "Greece", "The Netherlands" }));
StartGame();
}
private void StartGame()
{
_CurrentQuestion = null;
_CurrentQuestionIndex = 0;
_Missed = 0;
_StartTime = DateTime.UtcNow;
_Questions = Shuffle(_Questions);
}
private List<T> Shuffle<T>(List<T> inputList)
{
List<T> randomList = new List<T>(inputList.Count);
var random = new Random();
int randomIndex = 0;
while (inputList.Count > 0)
{
randomIndex = random.Next(0, inputList.Count);
randomList.Add(inputList[randomIndex]);
inputList.RemoveAt(randomIndex);
}
return randomList;
}
protected override void OnNavigatedTo(System.Windows.Navigation.NavigationEventArgs e)
{
base.OnNavigatedTo(e);
if (e.NavigationMode == System.Windows.Navigation.NavigationMode.Back)
{
StartGame();
}
}
private void btnOption1_Click(object sender, RoutedEventArgs e)
{
CheckResult((sender as Button).Content);
}
private void btnOption2_Click(object sender, RoutedEventArgs e)
{
CheckResult((sender as Button).Content);
}
private void btnOption3_Click(object sender, RoutedEventArgs e)
{
CheckResult((sender as Button).Content);
}
private void CheckResult(object obj)
{
var choice = obj as string;
if (!choice.Equals(_CurrentQuestion.Answer))
{
++_Missed;
}
MoveToNext();
}
private void MoveToNext()
{
if (_CurrentQuestionIndex < 5)
{
// continue with next question
_CurrentQuestion = _Questions[_CurrentQuestionIndex++];
img.Source = new BitmapImage(new Uri(_CurrentQuestion.ImagePath, UriKind.RelativeOrAbsolute));
var opties = Shuffle(new List<string>() { _CurrentQuestion.Options[0], _CurrentQuestion.Options[1], _CurrentQuestion.Answer });
btnOption1.Content = opties[0];
btnOption2.Content = opties[1];
btnOption3.Content = opties[2];
}
else
{
// end of the game
var time = DateTime.UtcNow.Subtract(_StartTime);
if (_Missed > 0)
{
NavigationService.Navigate(new Uri("/Result.xaml?win=false&time=" + time, UriKind.Relative));
}
else
{
NavigationService.Navigate(new Uri("/Result.xaml?win=true&time=" + time, UriKind.Relative));
}
}
}
}
public class Quiz
{
public string Question { get; set; }
public string Answer { get; set; }
public string ImagePath { get; set; }
public string[] Options { get; set; }
public Quiz(string question, string answer, string imagePath, string[] options)
{
Question = question;
Answer = answer;
ImagePath = imagePath;
Options = options;
}
}
}
但是我认为它不会起作用。问题和选项没有出现，整个游戏都不起作用。我无法弄清楚我必须做什么，所以我很困惑。
修改 XAML
<phone:PhoneApplicationPage
x:Class="PhoneApp3.MainPage"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:phone="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone"
xmlns:shell="clr-namespace:Microsoft.Phone.Shell;assembly=Microsoft.Phone"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
FontFamily="{StaticResource PhoneFontFamilyNormal}"
FontSize="{StaticResource PhoneFontSizeNormal}"
Foreground="{StaticResource PhoneForegroundBrush}"
SupportedOrientations="Portrait" Orientation="Portrait"
mc:Ignorable="d" d:DesignHeight="800" d:DesignWidth="480"
shell:SystemTray.IsVisible="False">
<Grid x:Name="LayoutRoot" Background="#FF008FFF">
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<StackPanel x:Name="TitlePanel" Margin="12,17,12,28" Height="0"></StackPanel>
<Grid x:Name="ContentPanel" Grid.RowSpan="2" HorizontalAlignment="Center" VerticalAlignment="Center" Height="Auto" Margin="0,36,12,0">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="227*" />
<ColumnDefinition Width="229*" />
</Grid.ColumnDefinitions>
<Button Background="#FF3EA6FF" BorderBrush="Transparent" Grid.ColumnSpan="2" Height="72" HorizontalAlignment="Left" Margin="12,656,12,0" Name="btnOption3" VerticalAlignment="Top" Width="480" Click="btnOption3_Click" />
<Button Background="#FF3EA6FF" BorderBrush="Transparent" Grid.ColumnSpan="2" Height="72" HorizontalAlignment="Left" Margin="12,500,12,0" Name="brnOption1" VerticalAlignment="Top" Width="480" Click="btnOption1_Click" />
<Button Background="#FF3EA6FF" BorderBrush="Transparent" Grid.ColumnSpan="2" Height="72" HorizontalAlignment="Left" Margin="12,578,12,0" Name="btnOption2" VerticalAlignment="Top" Width="480" Click="btnOption2_Click" />
<Image Height="276" HorizontalAlignment="Center" Margin="96,218,96,0" Name="img" Stretch="Fill" VerticalAlignment="Top" Width="276" Grid.ColumnSpan="2" />
</Grid>
</Grid>
问题：我的屏幕上没有任何数据，按钮中没有文字，例如