将图像元素添加到Web浏览器控制页面(现有站点) [英] Adding a image element to a webbrowser control page (existing site)

问题描述

我正在尝试使用Windows窗体Webbrowser控件现有站点的图像创建元素.然后，我想将创建的元素移动到某个位置.我有此代码，但无法正常工作.

I'm trying to create an element with a image to a windows forms webbrowser control existing site. Then I want to move the created element to a certain position. I have this code, but it doesn't work.

 private void webBrowser1_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
    {
        webBrowser1.Document.GetElementById("gpu_notice").Style = "display:none"; 
        webBrowser1.Document.GetElementById("header").OuterHtml = "";
        webBrowser1.Document.GetElementById("ads").OuterHtml = "";
        webBrowser1.Document.GetElementById("the_game").Style += "position: absolute; top: 0px; right: 0px;";
        HtmlElement logo = webBrowser1.Document.CreateElement("logo");
        logo.SetAttribute("SRC", @"C:\Users\Susana\Documents\Projeto HaxballK\Design\Logo HK.png");
        webBrowser1.Document.Body.AppendChild(logo);
        logo.SetAttribute("float", "right");
    }

推荐答案

您必须使用"img"标签代替徽标"，并使用

You have to use "img" tag instead of "logo" and set the file path with using file protocol.

HtmlElement logo = webBrowser1.Document.CreateElement("img");
logo.SetAttribute("SRC", @"file:///C:/Users/Susana/Documents/Projeto HaxballK/Design/Logo HK.png");
webBrowser1.Document.Body.AppendChild(logo);
logo.SetAttribute("float", "right");

已更新

如果要在所有JavaScript初始化运行之后添加图像，只需使用一个关闭的 Timer .

If you want to add the image after all the JavaScript initializations have run, simply use one off Timer.

System.Windows.Forms.Timer timer = new Timer();
void webBrowser1_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
{
    // other processes

    timer.Interval = 1 * 1000 * 5; // 5 seconds
    timer.Tick += timer_Tick;
    timer.Start();
}

void timer_Tick(object sender, EventArgs e)
{
    timer.Tick -= timer_Tick;

    HtmlElement logo = webBrowser1.Document.CreateElement("img");
    logo.SetAttribute("SRC", @"file:///C:/Users/Susana/Documents/Projeto HaxballK/Design/Logo HK.png");
    webBrowser1.Document.Body.AppendChild(logo);
    logo.SetAttribute("float", "right");
}

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