WebView.NavigationStarting Event
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
// Register
event_token NavigationStarting(TypedEventHandler<WebView, WebViewNavigationStartingEventArgs const&> const& handler) const;
// Revoke with event_token
void NavigationStarting(event_token const* cookie) const;
// Revoke with event_revoker
WebView::NavigationStarting_revoker NavigationStarting(auto_revoke_t, TypedEventHandler<WebView, WebViewNavigationStartingEventArgs const&> const& handler) const;
public event TypedEventHandler<WebView,WebViewNavigationStartingEventArgs> NavigationStarting;
function onNavigationStarting(eventArgs) { /* Your code */ }
webView.addEventListener("navigationstarting", onNavigationStarting);
webView.removeEventListener("navigationstarting", onNavigationStarting);
- or -
webView.onnavigationstarting = onNavigationStarting;
Public Custom Event NavigationStarting As TypedEventHandler(Of WebView, WebViewNavigationStartingEventArgs)
<WebView NavigationStarting="eventhandler" />
The following code example demonstrates how to handle this event to update a text box used as an address bar. For the complete example, see the XAML WebView control sample.
void webViewA_NavigationStarting(WebView sender, WebViewNavigationStartingEventArgs args)
{
string url = "";
try { url = args.Uri.ToString(); }
finally
{
address.Text = url;
appendLog(String.Format("Starting navigation to: \"{0}\".\n", url));
pageIsLoading = true;
}
}
You can cancel navigation in a handler for this event by setting the WebViewNavigationStartingEventArgs.Cancel property to true.
WebView navigation events occur in the following order:
- NavigationStarting
- ContentLoading
- DOMContentLoaded
- NavigationCompleted
Similar events occur in the same order for each iframe in the WebView content:
Product | Versions |
---|---|
WinRT | Build 10240, Build 10586, Build 14383, Build 15063, Build 16299, Build 17134, Build 17763, Build 18362, Build 19041, Build 20348, Build 22000, Build 22621, Build 26100 |