<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="1.5*"/>
<ColumnDefinition/>
</Grid.ColumnDefinitions>
<Grid Grid.Column="0" Background="DarkCyan">
<Grid.ColumnDefinitions>
<ColumnDefinition/>
<ColumnDefinition/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition/>
<RowDefinition/>
</Grid.RowDefinitions>
<ComboBox ItemsSource="{Binding Path=charList}" x:Name="comboBox" VerticalAlignment="Top" Width="Auto" Grid.ColumnSpan="2">
<ComboBoxItem>
<StackPanel Orientation="Horizontal">
<Image Source="Pictures\bagi_warrior.jpg" Width="100" Height="150"/>
<Grid>
<Grid.RowDefinitions>
<RowDefinition/>
<RowDefinition Height="6*"/>
</Grid.RowDefinitions>
<Label Grid.Row="0" Content="{Binding Path=Character.Name}" FontSize="30"/>
<Label Grid.Row="1" Content="{Binding Path=Character.Level}" FontSize="20"/>
</Grid>
</StackPanel>
</ComboBoxItem>
<ComboBoxItem>
<StackPanel Orientation="Horizontal">
<Image Source="Pictures\azure_knight.jpg" Width="100" Height="130"/>
<Grid>
<Grid.RowDefinitions>
<RowDefinition/>
<RowDefinition Height="6*"/>
</Grid.RowDefinitions>
<Label Grid.Row="0" Content="Azure Knight" FontSize="30"/>
<Label Grid.Row="1" Content="Level 158" FontSize="20"/>
</Grid>
</StackPanel>
</ComboBoxItem>
</ComboBox>
<Label x:Name="strLabel" Grid.Column="0" VerticalAlignment="Bottom" Height="30" Content="Str: " HorizontalContentAlignment="Center" FontSize="16"/>
<Label x:Name="intLabel" Grid.Column="1" VerticalAlignment="Bottom" Height="30" Content="Int: " HorizontalContentAlignment="Center" FontSize="16"/>
<Label x:Name="dexLabel" Grid.Column="0" Grid.Row="1" VerticalAlignment="Center" Height="30" Content="Dex: " HorizontalContentAlignment="Center" FontSize="16"/>
<Label x:Name="goldLabel" Grid.Column="1" Grid.Row="1" VerticalAlignment="Center" Height="30" Content="Gold: " HorizontalContentAlignment="Center" FontSize="16"/>
</Grid>
<Grid Grid.Column="1">
<Grid.RowDefinitions>
<RowDefinition/>
</Grid.RowDefinitions>
<DataGrid x:Name="MyGrid" ItemsSource="{Binding Path=Item}"></DataGrid>
</Grid>
</Grid>
我的XAML如下所示:
我的代码是:
public partial class MainWindow : Window
{
Character aloken;
Character azureKnight;
Character bagiWarrior;
Character incarMagician;
Character segitaHunter;
Character segnale;
Character viciousSummoner;
private List<Character> _charList = new List<Character>();
public MainWindow()
{
InitializeComponent();
charList.Add(new Character("Bagi Warrior"));
this.Item = new ObservableCollection<Item>();
this.Character = new ObservableCollection<Character>();
this.DataContext = this;
//Character.Add(new Character(name: "Bagi Warrior", level: 197, characterClass: CharacterClass.Bagi_Warrior, gender: Gender.Male, strength: 450, intelligence: 4, dexterity: 84, gold: 147203352));
//Character.Add(new Character(name: "Azure Knight", level: 158, characterClass: CharacterClass.Azure_Knight, gender: Gender.Male, strength: 390, intelligence: 120, dexterity: 92, gold: 204220567));
//Character.Add(new Character(name: "Incar Magician", level: 169, characterClass: CharacterClass.Incar_Magician, gender: Gender.Female, strength: 4, intelligence: 512, dexterity: 57, gold: 172223520));
//Character.Add(new Character(name: "Vicious Summoner", level: 203, characterClass: CharacterClass.Vicious_Summoner, gender: Gender.Male, strength: 423, intelligence: 89, dexterity: 45, gold: 114225587));
}
public List<Character> charList
{
get { return _charList; }
set { _charList = value; }
}
private ObservableCollection<Character> _Character;
public ObservableCollection<Character> Character
{
get { return _Character; }
set { _Character = value; }
}
private ObservableCollection<Item> _Item;
public ObservableCollection<Item> Item
{
get { return _Item; }
set { _Item = value; }
}
}
字符类(以防万一): http://pastebin.com/GFycKqDC
物品类(以防万一): http://pastebin.com/RgXzbFHk
这是一个关于RPG的项目,您需要使用数据绑定来创建一个ObservableCollection,用于ComboBox,并查看每个角色。
我遇到的问题是: 在我的ComboBox中,我想能够显示带有“图像”的角色,旁边是他们的“等级”和“名称”
但我不希望它是静态的,我想创建一个角色列表,并将ItemsSource绑定到我的ComboBox,以便无论选择哪个角色,基于该角色的信息都会更新。 我该怎么做?
有人告诉我要创建一个角色列表,然后创建一个数据模板用于ComboBox Item,其中包含绑定到selectedItem的图片、名称和等级(我称之为charList),但无论我是在代码中还是在XAML中进行,它都会抛出一个异常,说在绑定之前集合必须为空。
我希望将数据模板中的属性绑定到selectedItem,以便标签和信息能够适当更新。我做错了什么,为什么会抛出这个异常?
编辑:
好的,现在问题已经解决!但是,为什么我的Label绑定对Character.Name和Character.Level仍然不起作用?
编辑2 public MainWindow() { InitializeComponent(); Character.Add(new Character("巴基勇士")); Character.Add(new Character("蓝色骑士")); this.Item = new ObservableCollection(); this.Character = new ObservableCollection();
this.DataContext = this;
//Character.Add(new Character(name: "Bagi Warrior", level: 197, characterClass: CharacterClass.Bagi_Warrior, gender: Gender.Male, strength: 450, intelligence: 4, dexterity: 84, gold: 147203352));
//Character.Add(new Character(name: "Azure Knight", level: 158, characterClass: CharacterClass.Azure_Knight, gender: Gender.Male, strength: 390, intelligence: 120, dexterity: 92, gold: 204220567));
//Character.Add(new Character(name: "Incar Magician", level: 169, characterClass: CharacterClass.Incar_Magician, gender: Gender.Female, strength: 4, intelligence: 512, dexterity: 57, gold: 172223520));
//Character.Add(new Character(name: "Vicious Summoner", level: 203, characterClass: CharacterClass.Vicious_Summoner, gender: Gender.Male, strength: 423, intelligence: 89, dexterity: 45, gold: 114225587));
}
//public List<Character> charList
//{
// get { return _charList; }
// set { _charList = value; }
//}
private ObservableCollection<Character> _Character;
public ObservableCollection<Character> Character
{
get { return _Character; }
set { _Character = value; }
}
然后是 XAML:
<Grid Grid.Column="0" Background="DarkCyan">
<Grid.ColumnDefinitions>
<ColumnDefinition/>
<ColumnDefinition/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition/>
<RowDefinition/>
</Grid.RowDefinitions>
<ComboBox ItemsSource="{Binding Path=Character}" x:Name="comboBox" VerticalAlignment="Top" Width="Auto" Grid.ColumnSpan="2">
<ComboBox.ItemTemplate>
<DataTemplate>
<StackPanel Orientation="Horizontal">
<Image x:Name="image" Source="{Binding Source={StaticResource ImageConverter}}" Width="100" Height="150"/>
<Grid>
<Grid.RowDefinitions>
<RowDefinition/>
<RowDefinition Height="6*"/>
</Grid.RowDefinitions>
<Label Grid.Row="0" Content="{Binding Path=Character.Name}" FontSize="30"/>
<Label Grid.Row="1" Content="{Binding Path=Character.Level}" FontSize="20"/>
</Grid>
</StackPanel>
</DataTemplate>
</ComboBox.ItemTemplate>