新的窗口句柄在IE中消失 [英] New window handles disappearing in IE

查看：204 发布时间：2016/9/19 11:54:31 c# internet-explorer selenium

本文介绍了新的窗口句柄在IE中消失的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

这是一个后续的前一个问题的，我在这里问。

This is a follow-up to a previous question that I asked here.

我以前也遇到过一个问题，用硒2.37.0在Internet Explorer 10切换窗口。我的C＃程序将导航到一个页面，点击打开链接按钮，并尝试导航到新窗口中执行其他任务。我的程序不停地失败了，因此我决定，这是因为硒的窗口句柄。打开一个新窗口后，窗口句柄（ driver.WindowHandles.Count ）的数量增加1至2个，符合市场预期，但经过一定的时间，数量窗口句柄滴回落至1。

I previously encountered an issue with switching windows in Internet Explorer 10 using Selenium 2.37.0. My C# program would navigate to a page, click a button that opens a link, and attempt to navigate to the new window to perform additional tasks. My program kept failing, and I determined that this was because of Selenium's window handles. After opening a new window, the number of window handles (driver.WindowHandles.Count) increases from 1 to 2, as expected, but after some amount of time, the number of window handles drops back down to 1.

我创建重现此问题的最少的样品网页。只需将下面的代码保存到 Test.aspx文件您的桌面上称为文件：

I have created a minimal sample webpage that reproduces this issue. Simply save the following code into a file called test.aspx on your desktop:

<html xmlns="http://www.w3.org/1999/xhtml" >
<body>
    <input id="btn" type="button" value="Link"  lang="javascript"     onclick="window.open('test.aspx')">
</body>
</html>

下面是我的C＃代码（在Visual Studio 2010中称为控制台项目 TestWindowSwitching打开此页面，点击该按钮，并打印一些输出）：

Here is my C# code (a Console project in Visual Studio 2010 called TestWindowSwitching) that opens this page, clicks the button, and prints some output:

using System;
using System.Threading;         // Needed for Sleep
using System.Diagnostics;       // Needed for Stopwatch

using OpenQA.Selenium;
using OpenQA.Selenium.IE;

namespace TestWindowSwitching
{
    class Program
    {
        static void Main()
        {
            IWebDriver driver = new InternetExplorerDriver();

            driver.Navigate().GoToUrl("C:\\Users\\yourNameHere\\Desktop\\test.aspx");

            try { driver.SwitchTo().DefaultContent(); }
            catch { Thread.Sleep(10); }

            Console.WriteLine("Initial number of window handles: " + driver.WindowHandles.Count);

            Stopwatch sw = new Stopwatch();

            try { driver.FindElement(By.Id("btn")).Click(); }
            catch { Thread.Sleep(10); }

            // Wait until number of window handles becomes 2
            while (driver.WindowHandles.Count != 2)
            {
                // Do nothing
            }

            sw.Start();

            // Wait until number of window handles changes from 2
            while (driver.WindowHandles.Count == 2)
            {
                // Do nothing
            }

            Console.WriteLine("Number of window handles has dropped to " + driver.WindowHandles.Count
                                   + " in " + sw.ElapsedMilliseconds + " ms");

            sw.Stop();

            Console.Write("Press Enter to close...");
            Console.ReadLine();

            driver.Quit();
        }
    }
}

下面是一些示例输出代码：

Here's some sample output for that code:

窗口的初始句柄数：1

Initial number of window handles: 1

窗口句柄数在59毫秒降到1

Number of window handles dropped to 1 in 59 ms

按Enter键，关闭...

Press Enter to close...

我以前创建的这个解决方法，所以这实际上是不是我的问题了。我只是得到的JavaScript命令（在这种情况下， window.open（'Test.aspx文件'）），并直接使用它来浏览网页，而无需打开一个新窗口。

I previously created a workaround for this, so this actually isn't a problem for me anymore. I simply get the Javascript command (in this case, window.open('test.aspx')) and use it directly to navigate to the page without opening a new window.

不过，正如我在以前的文章中提到，我觉得别人可能已经遇到过这个问题（的例如1 ，的例如2 ），因此，如果这其实是在硒的一个错误，这是值得研究的。或者，如果我做错了什么，建议是值得欢迎的。

However, as I mentioned in my previous post, I feel that others may have encountered this issue (example 1, example 2), so if this is in fact a bug in Selenium, it is worth investigating. Or, if I am doing something wrong, suggestions are welcome.

新的窗口句柄在IE中消失 [英] New window handles disappearing in IE

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新的窗口句柄在IE中消失 [英] New window handles disappearing in IE

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