C# 如何根据按钮点击设置标签内容

我的viewmodel类中有一个方法，通过单击按钮调用该方法并执行一些操作。现在，我的xaml文件中有一个标签和按钮：

<Label Content="" Height="20" HorizontalAlignment="Center" Margin="0,50,0,0" Name="label1" VerticalAlignment="Top" Width="119" />
<Button Content="Sync" Height="23" Command="{Binding Path=SyncCommand}" HorizontalAlignment="Center" Margin="0,15,0,0" Name="button1" VerticalAlignment="Top" Width="100" />

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因此，基本上在这两个地方（strBadResp）的结果都应该在标签中。我希望我已经讲清楚了。我是WPF世界的新手。请帮忙

您必须在代码隐藏中创建标签对象，如下所示

var lableMSG = new Lable();

lableMSG.Content = "Message string";

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希望这对你有帮助

将标签上的内容属性绑定到视图模型上的属性。要更新标签时，请更新响应属性

查看

<Label Content="{Binding Response}" Height="20" HorizontalAlignment="Center" Margin="0,50,0,0" Name="label1" VerticalAlignment="Top" Width="119" />

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我遵循MVVM模式。你的答案不是我所期望的：（在添加上面的代码之后，我刚刚添加了Response=strBadResp；我得到了：）谢谢。

var lableMSG = new Lable();

lableMSG.Content = "Message string";

<Label Content="{Binding Response}" Height="20" HorizontalAlignment="Center" Margin="0,50,0,0" Name="label1" VerticalAlignment="Top" Width="119" />

public class YourViewModel : INotifyPropertyChanged {

    string response;

    public string Response {

        get  { return this.response; }

        set {
            if (this.response == value)
                return;

            this.response = value;
            NotifyPropertyChanged("Response");
        }
    }

    public event NotityPropertyChangedEventHandler  = delegate {}

    void NotifyPropertyChanged(string propertyName) {
        PropertyChanged(this, new PropertyChangedEventArgs(propertyName);   
    }
  }