有没有一种方法可以刷新WPF中的所有绑定? [英] Is there a way to refresh all bindings in WPF?

问题描述

如果我的代码看起来像下面的代码，是否可以直接刷新所有绑定，还是必须对所有绑定进行硬编码才能刷新?

If my code looks somewhat like the code beneath, would it be possible to refresh all bindings directly or would I have to hard-code all the bindings to refresh?

服务端:

[ServiceContract]
public interface IMyServiceContract {
    [OperationContract]
    MyDataContract GetData();
}
[ServiceBehavior]
public class MyService {
    [OperationBehavior]
    public MyDataContract GetData() {
        MyDataContract data = new MyDataContract();
        data.val1 = "123";
        data.val2 = "456";
        return data;
    }
}
[DataContract]
public class MyDataContract {
    [DataMember]
    public string val1;
    public string val2;
}

客户端xaml(省略了命名空间样板代码):

Client-side xaml (namespace boilerplate code omitted):

<Window x:Class="MyWindow" DataContext="{Binding RelativeSource={RelativeSource Self}}" Title="{Binding Path=val1, Mode=OneWay}">
    <DockPanel>
        <TextBlock Text="{Binding Path=val1, Mode=OneWay}"/>
        <TextBlock Text="{Binding Path=val2, Mode=OneWay}"/>
    </DockPanel>
</Window>

客户端代码行为:

public partial class MyWindow {
    MyServiceClient client = new MyServiceClient();
    MyDataContract data;
    public string val1 {get{return data.val1;}}
    public string val2 {get{return data.val2;}}
    DispatcherTimer updateTimer = new DispatcherTimer();

    public MyWindow() {
        timer.Interval = new TimeSpan(0, 0, 10);
        timer.Tick += new EventHandler(Tick);
        Tick(this, null);
        timer.Start();
        InitializeComponent();
    }

    void Tick(object sender, EventArgs e) {
        data = client.GetData();
        // Refresh bindings
    }
}

请忽略示例代码中的任何违反编码标准的行为，因为它仅是作为预期用途的示例.

Please disregard any coding standards violations in the example code since it is simply intended as an example for the intended use.

推荐答案

找到了答案，似乎是在将PropertyChangedEventArgs属性名称设置为""的情况下调用PropertyChanged会刷新所有绑定. 更改DataContext的方法也可以，尽管感觉有点干净".

Found the answer, seems like that calling PropertyChanged with the PropertyChangedEventArgs property name set to "" refreshes all bindings.
The DataContext changing worked too, although this felt a bit "cleaner".

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