Question

任何人都可以解释为什么Binding不能用于ItemsControl的DisplaymemberPath吗？

我用Reflector DisplayMemberPath检查ItemsControl只有Dependency Property，Bindable属性也只设置为True。

XAML：

  <ComboBox x:Name="display" DisplayMemberPath="{Binding NewAddress.TelePhone}" ItemsSource="{Binding Persons}"/>

人员类：

public class Person
{
    public Person()
    {
        persons = new ObservableCollection<NewAddress>();
        persons.Add(new NewAddress() { TelePhone = "MyNo" });
        persons.Add(new NewAddress() { TelePhone = "MyNo1" });
        persons.Add(new NewAddress() { TelePhone = "MyNo2" });
        persons.Add(new NewAddress() { TelePhone = "MyNo3" });
    }

    private ObservableCollection<NewAddress> persons;

    public ObservableCollection<NewAddress> Persons
    {
        get { return persons; }
        set { persons = value; }
    }

}

地址类：

 public class NewAddress
{
    public string  TelePhone { get; set; }
}

Answer 1

DisplayMemberPath是属性的实际名称，而不是对属性的绑定。将您的XAML代码更改为以下内容：

<ComboBox x:Name="display" DisplayMemberPath="TelePhone" ItemsSource="{Binding Persons}"/>

你能解释为什么Binding不适用于ItemsControl的DisplayMemberPath吗？

1 个答案: