通过滚动在XAML检测的WebView高度 [英] Detecting WebView Height via Scrolling in XAML

问题描述

我真正需要的是能制定出一段HTML的有多高是一个给定的WebView 里面。这是非常重要的项目，我想建立。我知道这不是马上可能的，但我可以决定是否对的WebView我也许能增加观的高度，直到它消失存在一个滚动条。

I really need to be able to work out how tall a piece of HTML is inside a given WebView. It's pretty much crucial to the project I'm trying to build. I know it's not immediately possible but I could determine whether a scrollbar existed on a WebView I might be able to increase the height of the view until it disappeared.

在这个有什么想法？或任何其他解决方案/建议吗？我看着使用HTMLAgilityPack转换它一个TextBlock（现移植到地铁），但HTML是太复杂。

Any thoughts on this? Or any alternative solutions / suggestions? I looked into converting it for a TextBlock using the HTMLAgilityPack (now ported to Metro) but the HTML is too complex for that.

推荐答案

如果您对HTML控件，添加这个JavaScript：

If you have control over the HTML, add this javascript:

function getDocHeight() {
    var D = document;
    return Math.max(
        Math.max(D.body.scrollHeight, D.documentElement.scrollHeight),
        Math.max(D.body.offsetHeight, D.documentElement.offsetHeight),
        Math.max(D.body.clientHeight, D.documentElement.clientHeight)
    );
}

（从的http://james.padolsey.com/javascript/get-document-height-cross-browser/ ）

和调用这个而非警报：

window.external.notify(getDocHeight());

然后实施 ScriptNotify 事件：

的 http://msdn.microsoft.com/en-us/library/windows/apps/windows.ui.xaml.controls.webview.scriptnotify.aspx

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