c# - 数据不显示在 Text={Binding} 上？

Question

我对 silverlight 和 Windows 7 手机开发还很陌生。我不确定我错过了什么，但显然我错过了一些东西，因为它没有按预期工作。

我的目标是显示一个生物列表，其中只有它们的名称和生命值。但是整个 Text={Binding}-stuff 显然不起作用。所以我想知道你们中是否有人可以帮助我解决这个问题。

当我说它不起作用时，这是因为数据在生物列表中，但不在页面/文本 block 中 - 它显示了正确数量的生物，但不是数据。

XAML

<phone:PhoneApplicationPage 
x:Class="RPG_Assistent.Pages.DamageTrackerPage"
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="768" d:DesignWidth="480"
shell:SystemTray.IsVisible="True">

<!--LayoutRoot is the root grid where all page content is placed-->
<Grid x:Name="LayoutRoot" Background="Transparent">
    <Grid.RowDefinitions>
        <RowDefinition Height="Auto"/>
        <RowDefinition Height="*"/>
    </Grid.RowDefinitions>

    <!--TitlePanel contains the name of the application and page title-->
    <StackPanel x:Name="TitlePanel" Grid.Row="0" Margin="12,17,0,28">
        <TextBlock x:Name="ApplicationTitle" Text="MY APPLICATION" Style="{StaticResource PhoneTextNormalStyle}"/>
    </StackPanel>

    <!--ContentPanel - place additional content here-->
    <Grid x:Name="ContentPanel" Grid.Row="1" Margin="12,0,12,0">
        <!--<Button Content="Damage" Height="72" HorizontalAlignment="Left" Margin="0,618,0,0" Name="btnDamage" VerticalAlignment="Top" Width="160" Click="btnDamage_Click" />
        <TextBox Height="72" HorizontalAlignment="Left" Margin="158,618,0,0" Name="txtDamage" Text="" VerticalAlignment="Top" Width="286" KeyUp="NumericOnlyTextBox_KeyUp"></TextBox>-->
        <ListBox ItemsSource="{Binding creatureList}" Height="500" HorizontalAlignment="Center" Margin="6,6,0,0" Name="listBox1" VerticalAlignment="Top" Width="400">
            <ListBox.ItemTemplate>
                <DataTemplate>
                    <Button Width="400" Height="120" >
                        <Button.ContentTemplate>
                            <DataTemplate>
                                <StackPanel Orientation="Horizontal" Height="80" Width="200">
                                    <StackPanel Orientation="Vertical" Height="40">
                                        <TextBlock Width="100" FontSize="22" Text="Name:" Height="40"/>
                                        <TextBlock Width="100" Text="{Binding Name}" Height="40"/>
                                    </StackPanel>
                                    <StackPanel Orientation="Vertical" Height="40">
                                        <TextBlock Width="100" FontSize="22" Text="Hitpoints:" Height="40"/>
                                        <TextBlock Width="100" Text="{Binding HitPoints}" Height="40"/>
                                    </StackPanel>
                                </StackPanel>
                            </DataTemplate>
                        </Button.ContentTemplate>
                    </Button>
                </DataTemplate>
            </ListBox.ItemTemplate>
        </ListBox>
    </Grid>
</Grid>

<!--Sample code showing usage of ApplicationBar-->
<!--<phone:PhoneApplicationPage.ApplicationBar>
    <shell:ApplicationBar IsVisible="True" IsMenuEnabled="True">
        <shell:ApplicationBarIconButton IconUri="/Images/appbar_button1.png" Text="Button 1"/>
        <shell:ApplicationBarIconButton IconUri="/Images/appbar_button2.png" Text="Button 2"/>
        <shell:ApplicationBar.MenuItems>
            <shell:ApplicationBarMenuItem Text="MenuItem 1"/>
            <shell:ApplicationBarMenuItem Text="MenuItem 2"/>
        </shell:ApplicationBar.MenuItems>
    </shell:ApplicationBar>
</phone:PhoneApplicationPage.ApplicationBar>-->

CS - 当页面完成加载内容时调用。(在 InitializeComponent() 之后调用；在我的 DamageTracker 页面上)

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using Microsoft.Phone.Controls;
namespace RPG_Assistent.Pages
{
    public partial class DamageTrackerPage : PhoneApplicationPage
    {
        List<Models.Creature> creatureList { get; set; }

        public DamageTrackerPage()
        {
            InitializeComponent();
            creatureList = new List<Models.Creature>();


            #region ApplicationTitle Setup
            ApplicationTitle.Text = Constants.AppName;
            ApplicationTitle.TextAlignment = Constants.AppName_TextAlignment;
            ApplicationTitle.FontSize = Constants.AppName_FontSize;
            ApplicationTitle.FontWeight = Constants.AppName_FontWeight;
            #endregion

           //SetInputScope(txtDamage);


            LoadCreatures();
            DataContext = this;
        }

        public void LoadCreatures()
        {


            string name;

            for (int i = 0; i < 10; i++)
            {
                name = "Monster " + i + 1;
                creatureList.Add(new Models.Creature(name));

            }

        }

        public void btnDamage_Click(object sender, RoutedEventArgs e)
        {

        }

        #region textbox control - makes numeric only
        private void SetInputScope(TextBox textBoxControl)
        {
            InputScopeNameValue digitsInputNameValue = InputScopeNameValue.TelephoneNumber;
            textBoxControl.InputScope = new InputScope()
            {
                Names = {
                    new InputScopeName()
                    {
                        NameValue = digitsInputNameValue
                    }
                }
            };
        }

        private void MaskNumericInput(TextBox textBoxControl)
        {
            string[] invalidCharacters = { "*", "#", ",", "(", ")", "x", "-", "+", " ", "@", "." };

            for (int i = 0; i < invalidCharacters.Length; i++)
            {
                textBoxControl.SelectionStart = textBoxControl.Text.Length;
            }
        }

        private void NumericOnlyTextBox_KeyUp(object sender, KeyEventArgs e)
        {
            MaskNumericInput((TextBox)sender);
        }
        #endregion


    }
}

CS - 生物类，放在“模型”文件夹中 - 因为我认为我会很聪明

using System;

using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Ink;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;

namespace RPG_Assistent.Models
{
    public class Creature
    {
        public string Name { get; set; }
        public int HitPoints { get; set; }
        public string Type { get; set; }

        public Creature(string name)
        {
            this.Name = name;
            this.HitPoints = 0;
            this.Type = "Images/mob.jpg";

        }
        public void Damage(int damage)
        {
            HitPoints += damage;
        }
        public void Bloodied()
        {
            switch (this.Type)
            {
                case "Images/mob.jpg":
                    this.Type = "Images/mobhurt.jpg";
                    break;
                case "Images/mobhurt.jpg":
                    this.Type = "Images/mob.jpg";
                    break;
            }
        }

    }
}

Answer 1

因为您要绑定(bind)到一个 Creatures 列表，所以您不需要输入 Creature.Name。您应该能够将其更改为 Text={Binding Name} 和 Text={Binding Hitpoints}