小编Con*_*nst的帖子

我正在更改类构造函数中的标签，它工作正常，标签已更新（“0”）。当我单击按钮时，我还尝试更新标签，但它不起作用（“X”）。我注意到调试标签值已更新，PropertyChanged 被触发，但视图没有更改。

public class HomeViewModel : ViewModelBase
{
    string playerA;
    public string PlayerA
    {
        get
        {
            return playerA;
        }
        set
        {
            playerA = value;
            this.Notify("playerA");
        }
    }

    public ICommand PlayerA_Plus_Command
    {
        get;
        set;
    }

    public HomeViewModel()
    {
        this.PlayerA_Plus_Command = new Command(this.PlayerA_Plus);
        this.PlayerA = "0";
    }

    public void PlayerA_Plus()
    {
        this.PlayerA = "X";
    }
}



public abstract class ViewModelBase : INotifyPropertyChanged
{
    public event PropertyChangedEventHandler PropertyChanged;

    protected void Notify(string propertyName)
    {
        if (this.PropertyChanged != null)
            this.PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
    }
}