Pass parameters to WPF User Control Library from WPF MVVM app.

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Greatings, I'm creating a wpf user library control, which has a windows form control. Is possible pass values to properties class library control (not windows forms control properties), I have this:

WPF User Control Library (XAML):

HTML

<UserControl x:Class="WPFControlsSol.ReportViewer"....

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

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

</wfi:WindowsFormsHost>

WPF User Control Library (C#):

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();
}

In WPF App, MainPage (XAML) with the reference library:

HTML

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

WPF App, MainPage (C#):

C#

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

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

        }
    }

In ViewModel:

C#

 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
}

But This not works.

Posted 9-Oct-13 12:38pm

Ejrr1085

Updated 9-Oct-13 12:40pm

v2

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Comments

Sergey Alexandrovich Kryukov 9-Oct-13 18:53pm

"Not works" is not informative.
—SA

1 solution

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Fitim Skenderi · Answer 1 · 2013-10-17T05:51:00

On your UrlReportServerProperty dependency property you need to provide a callback for when the property changes.

C#

public static readonly DependencyProperty.Register("UrlReportServer", typeof(string), typeof(ReportViewer), new PropertyMetadata("", PropertyChangedCallback));

        private static void PropertyChangedCallback(DependencyObject dependencyObject, DependencyPropertyChangedEventArgs dependencyPropertyChangedEventArgs)
        {
             var ctrl = dependencyObject as ReportViewer;
            if (ctrl != null)
            {
                if(dependencyPropertyChangedEventArgs.NewValue != null)
                    ctrl.ReportViewerLoad(dependencyPropertyChangedEventArgs.NewValue.ToString());
            }
        }


        public void ReportViewerLoad(string url)
        {
            rptViewer.ProcessingMode = ProcessingMode.Remote;
            rptViewer.ServerReport.ReportServerUrl = new Uri(url);
            //Pass credentials to server reports and parameters to Report with Properties.
            rptViewer.ServerReport.Refresh();
            this.rptViewer.RefreshReport();
        }