Export (0) Print
Expand All

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
)

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. For example, if there are two child frames on a single page, both frames could be 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);
}

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
Show:
© 2015 Microsoft