尝试通过 Selenium 清除文本时出现 InvalidElementStateException

Question

我正在测试的网络应用程序在删除记录时需要确认。

我已经创建了一个测试来输入删除此记录的正当理由。

执行此操作的代码如下：

DeleteFieldButton.
            Click();
        WaitMethods.WaitForElementToBeDisplayed(RemovalReason, 20);
        RemovalReason
            .Click();
        RemovalReason
            .Clear();
        RemovalReason
            .SendKeys("Automated Test - Delete Field");

文本框的XPath如下：

private Label RemovalReason = new Label(By.XPath("//*[@placeholder = 'Removal reason']"));

只要测试是运行，就会返回以下异常。

OpenQA.Selenium.InvalidElementStateException
HResult=0x80131500
Message=Cannot clear By.XPath: //*[@placeholder = 'Removal reason'] as it is 
not declared as a writable text element
Source=web
StackTrace:
at web.Elements.Common.Element.Clear()
at Daera.Efs.Test.E2e.PageObjects.ApplicationSummary.DeleteField(String 
FieldIDToDelete) in 
C:\Code\Local\WebApp.E2e\PageObjects\ApplicationSummary.cs:line 280
 at Test.E2e.Tests.ApplicationSummaryTest.Delete_Wider_General_Field_From_Application_Summary() in C:\Code\Local\WebApp.E2e\Tests\ApplicationSummaryTest.cs:line 45

以下是网络应用程序中元素的HTML：

<input ng-keypress="dialog.keypress($event)" md-autofocus="" ng-model="dialog.result" placeholder="Removal reason" class="ng-valid md-input ng-not-empty md-autofocus ng-touched ng-dirty ng-valid-parse" aria-label="Removal reason" id="input_22" aria-invalid="false" style="">

Answer 1

根据 HTML，您已将 <input> 元素与 placeholder 属性共享为 删除原因 是一个 Angular 元素，因为你必须发送文本，你必须为 引入 WebDriverWait ]元素可点击如下：

IWebElement myElem = new WebDriverWait(driver, TimeSpan.FromSeconds(10)).Until(ExpectedConditions.ElementToBeClickable(By.XPath("//input[@class='ng-valid md-input ng-not-empty md-autofocus ng-touched ng-dirty ng-valid-parse' and starts-with(@id,'input_') and @placeholder='Removal reason']")));
myElem.Click();
myElem.Clear();
myElem.SendKeys("Automated Test - Delete Field");

参考资料

您可以在以下位置找到一些相关讨论：

How to clear text field before sending keys selenium c#

Answer 2

我遇到了同样的问题，只是我试图在不允许使用破折号的日期字段中输入破折号。我通过手动输入带破折号的日期解决了这个问题，但它没有填充。（该字段也不接受字母 - 只接受数字）。现在，我的测试输入了一个没有破折号的日期，它成功通过了！

尝试通过 Selenium 清除文本时出现 InvalidElementStateException

InvalidElementStateException when attempting to clear text through Selenium

c#

selenium

selenium-webdriver

xpath

webdriverwait

参考资料