我可以将 HTML 绑定到 WPF Web 浏览器控件吗? [英] Can I bind HTML to a WPF Web Browser Control?

问题描述

假设我有一个属性 HTML(字符串).我可以将它绑定到 WPF WebBrowser 控件吗?我需要一个 URI 的 Source 属性，但是如果我想在内存中呈现一个 HTML 字符串，我可以这样做吗?我正在使用 MVVM，所以我认为使用 webBrowser1.NavigateToString() 等方法更难?因为我不知道控件名称?

Suppose I have a property HTML (string). Can I bind that to a WPF WebBrowser control? There is the Source property where I need a URI, but if I have a HTML string in memory I want to render, can I do that? I am using MVVM, so I think its harder to use methods like webBrowser1.NavigateToString() etc? cos I won't know the control name?

推荐答案

参见 这个 问题.

总而言之，首先为 WebBrowser 创建一个附加属性

To summarize, first you create an Attached Property for WebBrowser

public class BrowserBehavior
{
    public static readonly DependencyProperty HtmlProperty = DependencyProperty.RegisterAttached(
            "Html",
            typeof(string),
            typeof(BrowserBehavior),
            new FrameworkPropertyMetadata(OnHtmlChanged));

    [AttachedPropertyBrowsableForType(typeof(WebBrowser))]
    public static string GetHtml(WebBrowser d)
    {
        return (string)d.GetValue(HtmlProperty);
    }

    public static void SetHtml(WebBrowser d, string value)
    {
        d.SetValue(HtmlProperty, value);
    }

    static void OnHtmlChanged(DependencyObject dependencyObject, DependencyPropertyChangedEventArgs e)
    {
        WebBrowser webBrowser = dependencyObject as WebBrowser;
        if (webBrowser != null)
            webBrowser.NavigateToString(e.NewValue as string ?? " ");
    }
}

然后您可以绑定到您的 html 字符串，并且每次您的 html 字符串更改时都会调用 NavigateToString

And then you can Bind to your html string and NavigateToString will be called everytime your html string changes

<WebBrowser local:BrowserBehavior.Html="{Binding MyHtmlString}" />

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