IWebViewControl.FrameNavigationStarting 事件
定义
重要
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在 IWebViewControl 中的框架导航到新内容之前发生。
// Register
event_token FrameNavigationStarting(TypedEventHandler<IWebViewControl, WebViewControlNavigationStartingEventArgs const&> const& handler) const;
// Revoke with event_token
void FrameNavigationStarting(event_token const* cookie) const;
// Revoke with event_revoker
IWebViewControl::FrameNavigationStarting_revoker FrameNavigationStarting(auto_revoke_t, TypedEventHandler<IWebViewControl, WebViewControlNavigationStartingEventArgs const&> const& handler) const;
event TypedEventHandler<IWebViewControl,WebViewControlNavigationStartingEventArgs> FrameNavigationStarting;
function onFrameNavigationStarting(eventArgs) { /* Your code */ }
iWebViewControl.addEventListener("framenavigationstarting", onFrameNavigationStarting);
iWebViewControl.removeEventListener("framenavigationstarting", onFrameNavigationStarting);
- or -
iWebViewControl.onframenavigationstarting = onFrameNavigationStarting;
Event FrameNavigationStarting As TypedEventHandler(Of IWebViewControl, WebViewControlNavigationStartingEventArgs)
事件类型
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