NavigationService.Navigate Method (Uri, Object)

Navigate asynchronously to source content located at a uniform resource identifier (URI), and pass an object that contains data to be used for processing during navigation.

Namespace:  System.Windows.Navigation
Assembly:  PresentationFramework (in PresentationFramework.dll)

public bool Navigate(
	Uri source,
	Object navigationState
)
You cannot use methods in XAML.

Parameters

source
Type: System.Uri

A Uri object initialized with the URI for the desired content.

navigationState
Type: System.Object

An object that contains data to be used for processing during navigation.

Return Value

Type: System.Boolean
true if a navigation is not canceled; otherwise, false.

Since navigations are asynchronous, it is possible for multiple navigations to be in progress at the same time eg when two child frames on a single page are both navigating. In this case, the various navigation events that are raised by NavigationService may be raised multiple times, one for each piece of content that is being navigated to, and not necessarily in order that the navigations were requested. Consequently, if a particular navigation request needs to process data that is specific to the individual request, it cannot use data that is available to all navigation requests. Instead, you can use navigationState to pass data for navigation processing that is specific to one navigation request.

The following event arguments provide access to navigation state:

The following example demonstrates navigating to a URI and passing navigation state.

void goButton_Click(object sender, RoutedEventArgs e)
{
    this.NavigationService.Navigate(new Uri(this.addressTextBox.Text), DateTime.Now);
}
void NavigationService_LoadCompleted(object sender, NavigationEventArgs e)
{
    DateTime requestDateTime = (DateTime)e.ExtraData;
    string msg = string.Format("Request started {0}\nRequest completed {1}", requestDateTime, DateTime.Now);
    MessageBox.Show(msg);
}

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0
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