c# - 将 XAML 绑定(bind)到字典

Question

考虑以下代码:

public class Person {
public int Id { get; set; }
public string Name { get; set; }
public string Surname { get; set; }
}

public class HealthInfo {
public int BMI { get; set; }
public int HeartRate { get; set; }
public string DietPlan { get; set; }
}


Dictionary<Person, HealthInfo> myPersonInfo = new Dictionary<Person, HealthInfo>();

myPersonInfo.Add( new Person { Id = 1, Name = "Name1", Surname = "Surname1" }, new HealthInfo { BMI = 1, DietPlan = "Banting", HeartRate = 20 } );
myPersonInfo.Add( new Person { Id = 1, Name = "Name2", Surname = "Surname2" }, new HealthInfo { BMI = 1, DietPlan = "Banting", HeartRate = 20 } );
myPersonInfo.Add( new Person { Id = 1, Name = "Name3", Surname = "Surname3" }, new HealthInfo { BMI = 1, DietPlan = "Banting", HeartRate = 20 } );
myPersonInfo.Add( new Person { Id = 1, Name = "Name4", Surname = "Surname4" }, new HealthInfo { BMI = 1, DietPlan = "Banting", HeartRate = 20 } );

我正在尝试从我的 xaml 绑定(bind)到这个 Dictionary(myPersonInfo)为每个人创建一个选项卡，其中选项卡标题将是该人的姓名，然后该选项卡的内容将显示 HealtInfo。

我在我的 XAML 中绑定(bind)到这个字典有困难

我有以下内容:

<TabControl ItemsSource="{Binding myPersonInfo.Keys}" SelectedIndex="0">
                <TabControl.ItemTemplate>
                    <DataTemplate>
                        <TextBlock Text="{Binding Path=Name}"/>
                    </DataTemplate>
                </TabControl.ItemTemplate>
                <TabControl.ContentTemplate>
                   <DataTemplate>
                       <TextBlock Text="{Binding Path=Key.Value.BMI}"/>
                   </DataTemplate>
                </TabControl.ContentTemplate>
</TabControl>

如何使用 ItemTemplate 的 Key(Person) 属性和如何将 Value(HealtInfo) 的属性用于当前 Key 的 ContentTemplate？

Answer 1

创建“聚合”类并在 ObservableCollection 中使用它，数据绑定(bind)很好地支持了它

 public class PersonHealthInfo
 {
     public Person Person {get; set; }
     public HealthInfo HealthInfo {get; set; }
 }

ObservableCollection<PersonHealthInfo> persons = new ObservableCollection<PersonHealthInfo>();

var person1 = new PersonHealthInfo
{
    Person = new Person { Id = 1, Name = "Name1", Surname = "Surname1" },
    HealthInfo = new HealthInfo { BMI = 1, DietPlan = "Banting", HeartRate = 20 }
}

persons.Add(person1);