/// <summary>
/// Handles the NavigationFailed event of the NavigationService.
///
/// Developers you can use this event handler to display all your navigation failures to the user.
/// This is very helpful when your application initiates navigation from XAML.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="Microsoft.Practices.Prism.Regions.RegionNavigationFailedEventArgs"/> instance containing the event data.</param>
void NavigationService_NavigationFailed(object sender, RegionNavigationFailedEventArgs e)
{
this.Logger.Log(Global.RegionNavigationFailed + e.Uri.ToString());
// Demo only. Use a dialog service or interaction request instead of a message box
MessageBox.Show(String.Format(Global.NavigationFailedMessage_FormatString, e.Uri, e.Error.Message), Global.NavigationError, MessageBoxButton.OK, MessageBoxImage.Error);
}
/// <summary>
/// Handles the NavigationFailed event of the NavigationService.
///
/// Developers you can use this event handler as a central place to
/// display a navigation failed message. This handler can come in handy
/// when initiating navigation from XAML where no call back is available.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="Microsoft.Practices.Prism.Regions.RegionNavigationFailedEventArgs"/> instance containing the event data.</param>
private void NavigationService_NavigationFailed(object sender, RegionNavigationFailedEventArgs e)
{
//this.Logger.Log(String.Format(Constants.Global.NavigationFailedMessage_FormatString, e.Uri.ToString(), e.Error.Message));
//// demo only. In a real-world application, use a dialog service or interaction request to display messages.
//MessageBox.Show(String.Format(Constants.Global.NavigationFailedMessage_FormatString, e.Uri.ToString(), e.Error.Message),
// Constants.Global.NavigationFailed, MessageBoxButton.OK, MessageBoxImage.Error);
throw e.Error;
}
public void WhenNavigationFailsBecauseTheContentViewCannotBeRetrieved_ThenNavigationFailedIsRaised()
{
// Prepare
var region = new Region {
Name = "RegionName"
};
var serviceLocatorMock = new Mock <IServiceLocator>();
serviceLocatorMock
.Setup(x => x.GetInstance <IRegionNavigationJournalEntry>())
.Returns(new RegionNavigationJournalEntry());
var contentLoaderMock = new Mock <IRegionNavigationContentLoader>();
contentLoaderMock
.Setup(cl => cl.LoadContent(region, It.IsAny <NavigationContext>()))
.Throws <InvalidOperationException>();
var serviceLocator = serviceLocatorMock.Object;
var contentLoader = contentLoaderMock.Object;
var journal = new Mock <IRegionNavigationJournal>().Object;
var target = new RegionNavigationService(serviceLocator, contentLoader, journal);
target.Region = region;
RegionNavigationFailedEventArgs eventArgs = null;
target.NavigationFailed += delegate(object sender, RegionNavigationFailedEventArgs e)
{
if (sender == target)
{
eventArgs = e;
}
};
// Act
bool?isNavigationSuccessful = null;
target.RequestNavigate(new Uri("invalid", UriKind.Relative), nr => isNavigationSuccessful = nr.Result);
// Verify
Assert.IsFalse(isNavigationSuccessful.Value);
Assert.IsNotNull(eventArgs);
Assert.IsNotNull(eventArgs.Error);
}
public void WhenNavigationFailsBecauseDataContextForActiveViewRejectsIt_ThenNavigationFailedIsRaised()
{
// Prepare
var region = new Region {
Name = "RegionName"
};
var viewModel1Mock = new Mock <IConfirmNavigationRequest>();
viewModel1Mock
.Setup(ina => ina.ConfirmNavigationRequest(It.IsAny <NavigationContext>(), It.IsAny <Action <bool> >()))
.Callback <NavigationContext, Action <bool> >((nc, c) => c(false))
.Verifiable();
var view1Mock = new Mock <FrameworkElement>();
var view1 = view1Mock.Object;
view1.DataContext = viewModel1Mock.Object;
var view2 = new object();
region.Add(view1);
region.Add(view2);
region.Activate(view1);
var navigationUri = new Uri(view2.GetType().Name, UriKind.Relative);
var serviceLocatorMock = new Mock <IServiceLocator>();
serviceLocatorMock
.Setup(x => x.GetInstance <IRegionNavigationJournalEntry>())
.Returns(new RegionNavigationJournalEntry());
var contentLoaderMock = new Mock <IRegionNavigationContentLoader>();
contentLoaderMock
.Setup(cl => cl.LoadContent(region, It.IsAny <NavigationContext>()))
.Returns(view2);
var serviceLocator = serviceLocatorMock.Object;
var contentLoader = contentLoaderMock.Object;
var journal = new Mock <IRegionNavigationJournal>().Object;
var target = new RegionNavigationService(serviceLocator, contentLoader, journal);
target.Region = region;
RegionNavigationFailedEventArgs eventArgs = null;
target.NavigationFailed += delegate(object sender, RegionNavigationFailedEventArgs e)
{
if (sender == target)
{
eventArgs = e;
}
};
// Act
bool?isNavigationSuccessful = null;
target.RequestNavigate(navigationUri, nr => isNavigationSuccessful = nr.Result);
// Verify
viewModel1Mock.VerifyAll();
Assert.IsFalse(isNavigationSuccessful.Value);
Assert.IsNotNull(eventArgs);
Assert.IsNull(eventArgs.Error);
}
protected virtual void RegionOneNavigationServiceOnNavigationFailed(object sender, RegionNavigationFailedEventArgs e)
{
}
private void OnNavigationFailed(object sender, RegionNavigationFailedEventArgs e)
{
throw e.Error;
}
void NavigationService_NavigationFailed(object sender, RegionNavigationFailedEventArgs e)
{
MessageBox.Show(e.Error.ToString());
}
private void OnNavigationFailed(object sender, RegionNavigationFailedEventArgs e)
{
this.ShowMessageAsync("Navigation Service", e.Error.Message ?? "Navigation failed.");
}
private void NavigationService_NavigationFailed(object sender, RegionNavigationFailedEventArgs e)
{
System.Windows.MessageBox.Show(e.Error.Message, "NavigationService_NavigationFailed");
System.Diagnostics.Debug.WriteLine("WindowNavigationService.NavigationFailed : " + e.Error.Message);
}
private void NavigationService_NavigationFailed1(object sender, RegionNavigationFailedEventArgs e)
{
}
public void WhenNavigationFailsBecauseBindingContextForActiveViewRejectsIt_ThenNavigationFailedIsRaised()
{
// Prepare
var region = new Region {
Name = "RegionName"
};
var viewModel1Mock = new Mock <IConfirmRegionNavigationRequest>();
viewModel1Mock
.Setup(ina => ina.ConfirmNavigationRequest(It.IsAny <INavigationContext>(), It.IsAny <Action <bool> >()))
.Callback <INavigationContext, Action <bool> >((nc, c) => c(false))
.Verifiable();
var view1Mock = new Mock <View>();
var view1 = view1Mock.Object;
view1.BindingContext = viewModel1Mock.Object;
var view2 = new StackLayout();
region.Add(view1);
region.Add(view2);
region.Activate(view1);
var navigationUri = new Uri(view2.GetType().Name, UriKind.Relative);
var containerMock = new Mock <IContainerExtension>();
containerMock.Setup(x => x.Resolve(typeof(IRegionNavigationJournalEntry))).Returns(new RegionNavigationJournalEntry());
var contentLoaderMock = new Mock <IRegionNavigationContentLoader>();
contentLoaderMock
.Setup(cl => cl.LoadContent(region, It.IsAny <INavigationContext>()))
.Returns(view2);
var container = containerMock.Object;
var contentLoader = contentLoaderMock.Object;
var journal = Mock.Of <IRegionNavigationJournal>();
var target = new RegionNavigationService(container, contentLoader, journal)
{
Region = region
};
RegionNavigationFailedEventArgs eventArgs = null;
target.NavigationFailed += delegate(object sender, RegionNavigationFailedEventArgs e)
{
if (sender == target)
{
eventArgs = e;
}
};
// Act
bool?isNavigationSuccessful = null;
target.RequestNavigate(navigationUri, nr => isNavigationSuccessful = nr.Result);
// Verify
viewModel1Mock.VerifyAll();
Assert.False(isNavigationSuccessful.Value);
Assert.NotNull(eventArgs);
Assert.Null(eventArgs.Error);
}
void NavigationService_NavigationFailed(object sender, RegionNavigationFailedEventArgs e)
{
//throw new NotImplementedException();
}
