如何在C#中将datatable转换为webelement的列表

Question

我是C#新手，我正在使用specflow

我正在自动化一个场景，其中需要检查多个元素，如果它们是启用的。这些元素来自页面的不同部分，具有不同的XPath。

我想的方法是

foreach (webelement e in list)
{
    element.isEnabled();
}

Scenario: Validate G Functionality
    Given Open URL
    When verifies fields
        | Gmail  |
        | Images |

[When(@"verifies fields")]
        public void WhenVerifiesFields(Table table)

        {
           for(int i=0;i<=table.Rows.Count;i++)
            {


                IWebElement ew= table.Rows[i] as IWebElement;
                Assert.False(ew.Enabled);
            }

页面类：

[FindsBy(How = How.LinkText, Using = "Gmail")]
    private IWebElement Gmail;

    [FindsBy(How = How.LinkText, Using = "Images")]
    private IWebElement Images;

我得到以下错误

    Validate G Functionality [FAIL]
    [xUnit.net 00:00:06.38]       System.NullReferenceException : Object reference not set to an instance of an object.
    [xUnit.net 00:00:06.38]       Stack Trace:
    [xUnit.net 00:00:06.38]         /*line pointed here is 
 ew.enabled*/C:\Users\StepDefinition\TestStepsOne.cs(53,0): at BillTrackerAutomation.StepDefinition.TestStepsOne.WhenVerifiesFields(Table table)
    [xUnit.net 00:00:06.38]            at lambda_method(Closure , IContextManager , Table )

Answer 1

您可以通过[StepArgumentTransformation]实现这一点

  Scenario Outline: examples with step argument
  Given we have '<Webelements>'

  Examples:
  | Webelements | 
  |     Gmail   |

步骤定义如下：

  using TechTalk.SpecFlow;
  using OpenQA.Selenium.Chrome;
  using OpenQA.Selenium.Support.UI;
  using NUnit.Framework;

[Binding]
   public class Browser
  {
     private readonly BrowserDriver _browserDriver;
     public static  OpenQA.Selenium.IWebDriver driver ;

      public Browser(BrowserDriver browserDriver, FeatureContext featureContext)
    {
        _browserDriver = browserDriver;  //your chrome driver
        driver = _browserDriver._driver;
        _featureContext = featureContext;
        _featureContext.Add("driver", driver);
    }

     [Given(@"we have '(.*)'")] 

    public void webelements(ChromeWebElement o)
    {
       Assert.False(o.Displayed);
    }

    [StepArgumentTransformation]
      public ChromeWebElement convertToWebElement(string c)
      {
        ChromeDriver parent = _featureContext.Get<ChromeDriver>("driver");
        return new ChromeWebElement(parent, c);
    }  

显然，您得到的结果元素没有附加到页面文档，因为我只是使用了Gmail进行测试