WPF Prism 7.0+ IDialogAware（对话框）

 

示例：Prism 创建对话 Dialog，实现 IDialogAware 接口

第一步：创建区域

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public partial class MessageControl : UserControl {     public MessageControl()     {         InitializeComponent();         DataContext = new MessageControlViewModel();     } } public partial class MessageControlViewModel : BindableBase, IDialogAware {     /// <summary>     /// 确定按钮     /// </summary>     public DelegateCommand ConfirmCommand { set; get; }     /// <summary>     /// 取消按钮     /// </summary>     public DelegateCommand CacleCommand { set; get; }     public MessageControlViewModel()     {         ConfirmCommand = new DelegateCommand(() =>         {             DialogParameters keyValuePairs = new DialogParameters();             keyValuePairs.Add("showdialog", true);             RequestClose?.Invoke(new DialogResult(ButtonResult.OK, keyValuePairs));         });         CacleCommand = new DelegateCommand(() =>         {             RequestClose?.Invoke(new DialogResult(ButtonResult.No));         });     }     private string _title = string.Empty;     public string Title     {         get { return _title; }         //数据同步方法：RaisePropertyChanged();         set { _title = value; RaisePropertyChanged(); }     }       public event Action<IDialogResult> RequestClose;       public bool CanCloseDialog()     {         return true;     }     public void OnDialogClosed()     {     }     public void OnDialogOpened(IDialogParameters parameters)     {         Title = parameters.GetValue<string>("value");     } }

 

 第二步：IOC注入

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protected override void RegisterTypes(IContainerRegistry containerRegistry)

{

            //仅注册视图

            containerRegistry.RegisterDialog<MessageDialog>();

 

            //注册视图时绑定VM

            containerRegistry.RegisterDialog<MessageDialog, MessageDialogViewModel>();

 

            //添加别名

            containerRegistry.RegisterDialog<MessageDialog>("DialogName");

}