无法转换类型'mshtml。IHTMLDocument2' to 'System.Windows.Forms.HtmlDocument'

Question

是否有办法将mshtml.IHTMLDocument2转换为System.Windows.Forms.HtmlDocument ?我有以下代码:

IHTMLDocument2 doc2 = CrossFrameIE.GetDocumentFromWindow(frmdoc);
HtmlDocument doc1 = (HtmlDocument)doc2 ;

给了我以下错误:

不能转换类型'mshtml。IHTMLDocument2"System.Windows.Forms。HtmlDocument错误。

谢谢

Answer 1

use this:

    public static HtmlDocument ConvertCom2Wrapper(IHTMLDocument2 idoc)
    {
        Type thd = typeof(HtmlDocument);
        ConstructorInfo[] ci = thd.GetConstructors(
            BindingFlags.NonPublic | BindingFlags.Instance);
        HtmlDocument hdoc = (HtmlDocument)ci[0].Invoke(new object[] { null, idoc });
        return hdoc;
    }