关闭材料设计对话框

Question

我有材料设计对话框：

<materialDesign:DialogHost CloseOnClickAway="True" IsOpen="{Binding IsOpenDialogAddingEP, UpdateSourceTrigger=PropertyChanged}">
...
</materialDesign:DialogHost>
<Button Command="{Binding CloseDialogAddingEPCommand}"/>

我想在单击按钮时关闭对话框，在代码后面：

public ICommand CloseDialogAddingEPCommand { get; private set; }
public MyPage()
{
    InitializeComponent();
    DataContext = this;
    CloseDialogAddingEPCommand = new RelayCommand(CloseDialogAddingEP);
}
void CloseDialogAddingEP()
{
     IsOpenDialogAddingEP = false;
}
private bool isOpenDialogAddingEP;
public bool IsOpenDialogAddingEP
{
   get { return isOpenDialogAddingEP; }
   set
   {
        isOpenDialogAddingEP = value;
        OnPropertyChanged("IsOpenDialogAddingEP");
    }
}
public event PropertyChangedEventHandler PropertyChanged;
protected virtual void OnPropertyChanged([CallerMemberName] string propertyName = null)
{
            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
}

但是按钮没有任何作用，你能告诉我为什么吗？

Answer 1

您添加了吗：

public partial class Window:Window, INotifyPropertyChanged

？