public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
webBrowser1.Navigate("https://www.aparat.com/aleffamily/live2");
webBrowser1.DocumentCompleted += webBrowser1_DocumentCompleted;
}
private void webBrowser1_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
{
HtmlElement head = webBrowser1.Document.GetElementsByTagName("head")[0];
HtmlElement styleEl = webBrowser1.Document.CreateElement("style");
IHTMLStyleElement element = (IHTMLStyleElement)styleEl.DomElement;
IHTMLStyleSheetElement styleSheet = element.styleSheet;
styleSheet.cssText = @"body {background-color:transparent !important; margin: 0px auto; overflow: hidden; }.live__content{display:none;}.chat__footer{display:none;}.chat__header{display:none}#header{display:none}.in-chat-avatar{display:none}.message__username{font-style:italic;font-weight: 800!important;color:ff8f0f !important}.message__text{font-style:italic;font-weight: 400!important;color:ff8f0f !important}.chat__content{ background-color:transparent !important}.chat{ background-color:transparent !important}";
head.AppendChild(styleEl);
}
}
}
此代码对我不起作用，并且出现此错误
错误1类型或名称空间名称'IHTMLStyleSheetElement'可能
找不到（您是否缺少using指令或程序集
参考？）C：\ Users \ aleffamily \ documents \ visual studio
2010 \ Projects \ WindowsFormsApplication1 \ WindowsFormsApplication1 \ Form1.cs
30 13 WindowsFormsApplication1
最佳答案
您想用IHTMLStyleElement和IHTMLStyleSheetElement引用什么？它不在.NET框架中的任何地方。
只需修改您的代码以编写通用HtmlElement类型的内容，而不是通过样式表编写.InnerText或.InnerHtml的内容即可
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
webBrowser1.Navigate("https://www.aparat.com/aleffamily/live2");
webBrowser1.DocumentCompleted += webBrowser1_DocumentCompleted;
}
private void webBrowser1_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
{
HtmlElement head = webBrowser1.Document.GetElementsByTagName("head")[0];
HtmlElement styleEl = webBrowser1.Document.CreateElement("style");
styleEl.InnerHtml = @"body {background-color:transparent !important; margin: 0px auto; overflow: hidden; }.live__content{display:none;}.chat__footer{display:none;}.chat__header{display:none}#header{display:none}.in-chat-avatar{display:none}.message__username{font-style:italic;font-weight: 800!important;color:ff8f0f !important}.message__text{font-style:italic;font-weight: 400!important;color:ff8f0f !important}.chat__content{ background-color:transparent !important}.chat{ background-color:transparent !important}";
head.AppendChild(styleEl);
}
}
关于c# - 如何在WebBrowser控件中注入(inject)CSS，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/56112708/