webBrowser控件

1 对有ID的文本框赋值

　　webBrowser1.Document.GetElementById("emailValue").InnerText = "ganhui21312312@sina.com";

2 设置单选(推荐使用点击事件而不是直接修改属性)

　　webBrowser1.Document.GetElementById("controlID").InvokeMember("click");

3 将图片加载到picbox

HTMLDocument html = (HTMLDocument)this.webBrowser1.Document.DomDocument;
            IHTMLControlElement img = (IHTMLControlElement)webBrowser1.Document.Images["regValImg"].DomElement;

            IHTMLControlRange range = (IHTMLControlRange)((HTMLBody)html.body).createControlRange();
            range.add(img);
            range.execCommand("Copy", false, null);
            img = null;
            range = null;
            html = null;
            if (Clipboard.ContainsImage())
            {
                this.pictureBox1.Image = null;
                this.pictureBox1.Image = Clipboard.GetImage();

            }
            Clipboard.Clear();

4 提交表单

HtmlElement form = webBrowser1.Document.GetElementById("submit");
           form.InvokeMember("click");