Question

我想从Drop Down中选择一个项目。但是在编译时，它无法找到元素。

<select name="ctl00$cphmain$ddlWorkstation" onchange="javascript:setTimeout('__doPostBack(\'ctl00$cphmain$ddlWorkstation\',\'\')', 0)" id="ctl00_cphmain_ddlWorkstation" class="dropdown_s" style="width:180px;">
<option value="Select" title="Select">Select</option>
<option selected="selected" value="2" title="Hospital A">Hospital A</option>
</select>

我写的代码是：

IWebElement facilityName = driver.FindElement(By.XPath("//select[@name='ctl00$cphmain$ddlWorkstation']"));
SelectElement select = new SelectElement(facilityName);
select.SelectByText("Hospital A");

我面临的错误：

Test method ChromeProject.Login.Chrome_Login threw exception: 
OpenQA.Selenium.NoSuchElementException: no such element: Unable to locate element: {"method":"xpath","selector":"//select[@name='ctl00$cphmain$ddlWorkstation']"}
  (Session info: chrome=58.0.3029.110)
  (Driver info: chromedriver=2.29.461591 (62ebf098771772160f391d75e589dc567915b233),platform=Windows NT 6.1.7601 SP1 x86_64)

Answer 1

您似乎正在尝试处理动态元素。您可能需要等待一段时间，直到select中出现DOM：

var wait = new WebDriverWait(driver, TimeSpan.FromMinutes(1));
IWebElement facilityName = wait.Until(ExpectedConditions.ElementIsClickable(By.XPath("//select[@name='ctl00$cphmain$ddlWorkstation']")));
SelectElement select = new SelectElement(facilityName);
select.SelectByText("Hospital A");

使用XPath选择下拉选项 - Visual Studio

1 个答案: