java WebElement 的 setAttribute() 方法
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setAttribute() method for WebElement
提问by Guy
In this questionboth answers used setAttribute()as WebElementfunctionality. However, I couldn't find this method in the Java, C#nor Pythondocumentation, only getAttribute(). Trying to call this method from WebElementobject in C# (Visual Studio) and Java (Eclipse) with the latest Seleniumversion produced the same results.
在这个问题的两个答案用setAttribute()的WebElement功能。但是，我在Java、C#或Python文档中都找不到这种方法，只有getAttribute(). 尝试从WebElement最新Selenium版本的C# (Visual Studio) 和 Java (Eclipse) 中的对象调用此方法产生了相同的结果。
So my question is, does this method really exist?
所以我的问题是，这种方法真的存在吗？
回答by alecxe
After inspecting the selenium Python API docsand the source code, I can conclude - there is no such a method. And, there is nothing about it inside the WebDriver specificationitself.
在检查了 selenium Python API 文档和源代码后，我可以得出结论 - 没有这样的方法。而且，在WebDriver 规范本身中没有任何关于它的内容。
To set an attribute, usually a script is executed:
要设置属性，通常会执行一个脚本：
elm = driver.find_element_by_id("myid")
driver.execute_script("arguments[0].setAttribute(arguments[1], arguments[2]);",
elm,
"attr_name",
"attr_value")
回答by AlexCharizamhard
They are using the JavascriptExecutor class.
他们正在使用 JavascriptExecutor 类。
I.e.
IE
WebDriver driver; // Assigned elsewhere
JavascriptExecutor js = (JavascriptExecutor) driver;
js.executeScript("document.getElementById('//id of element').setAttribute('attr', '10')");
Or an Extension Method
或扩展方法
public static void setAttribute(this IWebElement element, string value, bool clearFirst)
{
if (clearFirst) element.Clear();
element.SendKeys(value);
}
