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C#中通过Selenium定位页面上的select-option结构，尝试了以下几种方法，均没有生效：
//iw.FindElement(By.CssSelector("select#id > option[value='']")).Click();
//iw.FindElement(By.XPath("//select[@id='']/option[@value='']")).Click(); //iw.FindElements(By.TagName("option"))[index].Click();
最后通过以下这种方式，成功定位到了页面上的Select-option标签：
var selector = iw.FindElement(By.Id(""));
SelectElement select = new SelectElement(selector); select.SelectByText("text");
Select对象可以通过option的value，text等属性对元素进行定位。
实际应用，如在SharePoint中创建site时，对于site template的选取和site path的选择：
public IWebDriver CreateSPSite(IWebDriver iw, string caUrl,string title,string template)
{
string createSitePage = caUrl + "/_admin/createsite.aspx"; iw.Navigate().GoToUrl(createSitePage); WaitUntilPageLoadedID(iw, "ctl00_PlaceHolderMain_ctl02_RptControls_BtnCreateSite"); //Title. iw.FindElement(By.Id("ctl00_PlaceHolderMain_idTitleDescSection_ctl01_TxtCreateSiteTitle")).SendKeys(title); //Url. var paths = iw.FindElement(By.Id("ctl00_PlaceHolderMain_ctl01_ctl04_DdlWildcardInclusion")); SelectElement path = new SelectElement(paths); path.SelectByText("/sites/"); WaitUntilPageLoadedID(iw, "ctl00_PlaceHolderMain_ctl01_ctl04_TxtSiteName"); iw.FindElement(By.Id("ctl00_PlaceHolderMain_ctl01_ctl04_TxtSiteName")).SendKeys(title); switch (template) { case "ts": break; case "edi": iw.FindElement(By.Id("ctl00_PlaceHolderMain_InputFormTemplatePickerControl_ctl00_ctl01_tabid1")).Click(); Thread.Sleep(1000); WaitUntilPageLoadedID(iw, "ctl00_PlaceHolderMain_InputFormTemplatePickerControl_ctl00_ctl01_LbWebTemplate"); var selector = iw.FindElement(By.Id("ctl00_PlaceHolderMain_InputFormTemplatePickerControl_ctl00_ctl01_LbWebTemplate")); SelectElement select = new SelectElement(selector); select.SelectByText("eDiscovery Center"); break; case "rc": iw.FindElement(By.Id("ctl00_PlaceHolderMain_InputFormTemplatePickerControl_ctl00_ctl01_tabid1")).Click(); Thread.Sleep(1000); WaitUntilPageLoadedID(iw, "ctl00_PlaceHolderMain_InputFormTemplatePickerControl_ctl00_ctl01_LbWebTemplate"); selector = iw.FindElement(By.Id("ctl00_PlaceHolderMain_InputFormTemplatePickerControl_ctl00_ctl01_LbWebTemplate")); select = new SelectElement(selector); select.SelectByText("Records Center"); break; case "holdCenter": iw.FindElement(By.Id("ctl00_PlaceHolderMain_InputFormTemplatePickerControl_ctl00_ctl01_tabid1")).Click(); Thread.Sleep(1000); WaitUntilPageLoadedID(iw, "ctl00_PlaceHolderMain_InputFormTemplatePickerControl_ctl00_ctl01_LbWebTemplate"); selector = iw.FindElement(By.Id("ctl00_PlaceHolderMain_InputFormTemplatePickerControl_ctl00_ctl01_LbWebTemplate")); select = new SelectElement(selector); select.SelectByText("In-Place Hold Policy Center"); break; } iw.FindElement(By.Id("ctl00_PlaceHolderMain_idPrimaryAdministratorSection_ctl01_PickerOwner_upLevelDiv")).SendKeys(@"userName"); iw.FindElement(By.Id("ctl00_PlaceHolderMain_ctl02_RptControls_BtnCreateSite")).Click(); return iw; }
对应在页面上的操作，第一段灰色部分的代码对如下标签进行了选择：
第二段灰色部分代码对如下标签进行了选择：
