c# - 从WPF MVVM应用程序将参数传递给WPF用户控制库

Question

好的，我正在创建一个wpf用户库控件，该控件具有Windows窗体控件。可以将值传递给属性类库控件(不是Windows窗体控件属性)吗？

WPF用户控制库(XAML):

<wfi:WindowsFormsHost Height="300" Name="winFormsHost" VerticalAlignment="Top" >

   <wfr:ReportViewer x:Name="rptViewer" ProcessingMode="Remote"/>

</wfi:WindowsFormsHost>

....

WPF用户控件库(C#):

public partial class ReportViewer : UserControl
{

        public static readonly DependencyProperty UrlReportServerProperty =
            DependencyProperty.Register("UrlReportServer", typeof(string),    typeof(ReportViewer),
                                        new PropertyMetadata((string)""));
.... // Other Dependecies properties

     public string UrlReportServer
     {
        get { return (string)GetValue(UrlReportServerProperty);}
        set { SetValue(UrlReportServerProperty, value); }
     }
............ // Other properties

     public ReportViewer()
     {
            InitializeComponent();
            this.DataContext = this;

            ReportViewerLoad();
     }
     public void ReportViewerLoad()
     {
             rptViewer.ProcessingMode = ProcessingMode.Remote;

             rptViewer.ServerReport.ReportServerUrl =
                        new Uri(UrlReportServer);
...... //Pass credentials to server reports and parameters to Report with Properties.

             rptViewer.ServerReport.Refresh();
                this.rptViewer.RefreshReport();
     } 

在WPF应用程序的MainPage(XAML)中，具有引用库:

<WPFControlsSol:ReportViewer HorizontalAlignment="Left" Margin="0,0,0,0" 
                             VerticalAlignment="Top" Width="644"
                             UrlReportServer="{Binding Url}"
</WPFControlsSol:ReportViewer>

WPF应用程序，主页(C#):

public partial class MainPageView : Window
{
        public MainPageView()
        {
            InitializeComponent();

            ViewModel viewModel = new ViewModel(); 
            DataContext = viewModel;

        }
}

在ViewModel中:

public class ViewModel : ViewModelBase
{

        private string _url;  .... // Other attributes

        public string Url
        {
            get { return _url; }
            set 
            {
                if (_url != value)
                {
                    _url = value;
                    RaisePropertyChanged("Url"); //Notification Method own MVVM  Template I use.
                }
            }
        } .... // Other properties 



        public ViewModel()
        {

           LoadReport();
        }  



        public void LoadReport()
        {
            Url = "http://IPSERVER"; .... // Other properties 
        }

但这行不通。

Answer 1

使用EventHandler Delegate发布和订阅事件。信息准备就绪后，引发事件并传递EventArgs中要求的信息