IWebViewControl.NavigationStarting 事件

定义

命名空间:

Windows.Web.UI

在 IWebViewControl 导航到新内容之前发生。

// Register
event_token NavigationStarting(TypedEventHandler<IWebViewControl, WebViewControlNavigationStartingEventArgs const&> const& handler) const;

// Revoke with event_token
void NavigationStarting(event_token const* cookie) const;

// Revoke with event_revoker
IWebViewControl::NavigationStarting_revoker NavigationStarting(auto_revoke_t, TypedEventHandler<IWebViewControl, WebViewControlNavigationStartingEventArgs const&> const& handler) const;

event TypedEventHandler<IWebViewControl,WebViewControlNavigationStartingEventArgs> NavigationStarting;

function onNavigationStarting(eventArgs) { /* Your code */ }
iWebViewControl.addEventListener("navigationstarting", onNavigationStarting);
iWebViewControl.removeEventListener("navigationstarting", onNavigationStarting);
- or -
iWebViewControl.onnavigationstarting = onNavigationStarting;

Event NavigationStarting As TypedEventHandler(Of IWebViewControl, WebViewControlNavigationStartingEventArgs) 

事件类型

TypedEventHandler<IWebViewControl,WebViewControlNavigationStartingEventArgs>

注解

WebView 导航事件按以下顺序发生：

• NavigationStarting
• ContentLoading
• DOMContentLoaded
• NavigationCompleted

对于 WebView 内容中的每个 iframe，类似事件按相同的顺序发生：

• FrameNavigationStarting
• FrameContentLoading
• FrameDOMContentLoaded
• FrameNavigationCompleted