为什么我不能在初始化时使用 Selenium WebDriver for C# 和 PageFactory 执行鼠标移动 [英] Why I can't perform mouse move using Selenium WebDriver for C# and PageFactory in initialization

问题描述

我有一个 HTML 链接，我使用页面对象模式用 Selenium 编写脚本.但是当使用 pageFactory 初始化对象时，我无法执行 MouseMove 操作.所以，我有这样的课:

I have an link in HTML and I use Page Object pattern to write scripts with Selenium. But I can't perform MouseMove action when object is initialized with pageFactory. So, I have such class:

class BingPage
{
private readonly IWebDriver driver;
public static readonly String BASE_URL = "http://bing.com/";
[FindsBy(How = How.XPath, Using = ".//*[@id='scpt2']/a[text()='Shopping']")]
private IWebElement ShoopingLink;

public BingPage(IWebDriver driver)
{
    this.driver = driver;
    //Page Factory will use Driver to init searchButton and queryEdit objects
    PageFactory.InitElements(driver, this);
}

public void HoverShoppingLink()
{
    Actions builder = new Actions(driver);

    IWebElement elem = driver.FindElement(By.XPath(".//*[@id='scpt2']/a[text()='Shopping']"));
    builder.MoveToElement(elem).Build().Perform();//This will work

    builder.MoveToElement(ShoopingLink).Build().Perform(); //This will fail
}
}

标有注释这将失败"的行将抛出异常必须为移动操作提供位置.参数名称:actionTarget"

Line marked with comment "This will fail" will throw an exception "Must provide a location for a move action. Parameter name: actionTarget"

但是当我手动查找元素时 - 它可以工作.有人能告诉我为什么吗?

But when I manually lookup element - it works. Could someone tell me why?

.Net 为 selenium 2.0，.Net 4.0 为 IE 驱动程序.

It is selenium 2.0 for .Net, .Net 4.0 with IE driver.

推荐答案

因为为元素创建的代理对象 (ProxiedWebElementInterceptor) 不代理 ILocatable，即Actions 类对其方法的要求.这是 .NET 绑定中的一个错误.它已在当前源中修复，并将在下一个公开版本 (2.21) 中提供，即将推出.

Because the proxy object (ProxiedWebElementInterceptor) created for the element doesn't proxy ILocatable, which is what the Actions class requires of its methods. This is a bug in the .NET bindings. It has been fixed in the current sources, and will be available in the next public release (2.21), available soon.

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