【NET】WebBrowser执行脚本以及一般操作代码

public class WebBrowserAssistant
    {
        System.Windows.Forms.WebBrowser wb;
        public WebBrowserAssistant(System.Windows.Forms.WebBrowser wb) {
            this.wb = wb;
        }
        public bool SetElementValue(string id,string value) {
            this.wb.Document.GetElementById(id).SetAttribute("value", value);
            return true;
        }

        public object InvokeScript(string scriptName) {
            return this.wb.Document.InvokeScript(scriptName);
        }
        public object InvokeScript(string scriptName,object[] ps)
        {
            return this.wb.Document.InvokeScript(scriptName, ps);
        }
        public void GetFocus(string id)
        {
            this.wb.Document.GetElementById(id).Focus();
        }
        public void GetBlur(string id)
        {
            this.wb.Document.GetElementById(id).RemoveFocus();
        }
        public string GetInputIDByName(string name)
        {
            return GetInputIDByName(name, name);
        }

        public void ClickElement(string id) {
            this.wb.Document.GetElementById(id).InvokeMember("click");
        }
        public string GetInputIDByName(string name,string id)
        {
            System.Windows.Forms.HtmlElementCollection es = this.wb.Document.GetElementsByTagName("input");
            if (es != null && es.Count > 0) {
                System.Collections.IEnumerator ie = es.GetEnumerator();
                System.Windows.Forms.HtmlElement e;
                while (ie.MoveNext()) {
                    e = (System.Windows.Forms.HtmlElement)ie.Current;
                    if (e.Name.Equals(name))
                    {
                        if (string.IsNullOrEmpty(e.Id))
                        {
                            e.Id = id;
                        }
                        return e.Id;
                    }
                }
            }
            return null;
        }

        public List<string> GetEletemtByName(string name)
        {
            System.Windows.Forms.HtmlElementCollection es = this.wb.Document.GetElementsByTagName("input");
            if (es != null && es.Count > 0)
            {
                List<string> result = new List<string>();
                System.Collections.IEnumerator ie = es.GetEnumerator();
                System.Windows.Forms.HtmlElement e;
                while (ie.MoveNext())
                {
                    e = (System.Windows.Forms.HtmlElement)ie.Current;
                    if (e.GetAttribute("type").Equals("checkbox") && e.Name.Equals(name) && e.GetAttribute("checked").Equals("True"))
                    {
                        result.Add(e.GetAttribute("value"));
                    }
                }
                return result;
            }
            return null;
        }
        public string ExeScript(string scriptBlock) {
            return ExeScript(scriptBlock, "tempEletemtTagNameAndID");
        }
        public string ExeScript(string scriptBlock,string tempEletemtTagNameAndID) {
            System.Windows.Forms.HtmlElement ele;
            if (this.wb.Document.GetElementById(tempEletemtTagNameAndID) == null) {
                ele = this.wb.Document.CreateElement(tempEletemtTagNameAndID);
                ele.Id = tempEletemtTagNameAndID;
                this.wb.Document.Body.AppendChild(ele);
            }
            ele = this.wb.Document.CreateElement("script");
            ele.SetAttribute("type", "text/javascript");

            ele.SetAttribute("text", string.Format("$j("#{0}").val({1})", tempEletemtTagNameAndID, scriptBlock));
            this.wb.Document.Body.AppendChild(ele);

            return this.wb.Document.GetElementById(tempEletemtTagNameAndID).GetAttribute("value");
        }

    }

调用

MessageBox.Show(new Huawei.PortableComputer.Util.WebBrowserAssistant(this.wbTaskList).ExeScript("$j('.listContentTable td :checkbox:checked:first').parent().next().next().next().text()"));