我正在用 c# 開發一個 selenium 框架。頁面類使用工廠設計實例化以隱藏實例化邏輯，我希望能夠使用 var myPageClass = HelperSelenium.Instance(MyPageClass)而不是實例化類var myPageClass = MyPageClass.Instance(driver)我已經嘗試在 HelperSelenium 類中創建一個泛型函數，但我還不能完全理解泛型是如何工作的。PageObject 類示例（注意我使用 Instance 方法來實例化該類public class HomePage : BasePage{ private HomePage(IWebDriver driver, CountryEnum enum) : base(driver) { } private static HomePage homePage { get; set; } public static HomePage Instance(IWebDriver driver, CountryEnum enum) { switch (enum) { case CountryEnum.Sweden: HomePage = new HomePage_SWE(driver); break; case CountryEnum.Germany: HomePage = new HomePage_GER(driver); break; case CountryEnum.Italy: HomePage = new HomePage_ITA(driver); break; default: HomePage = new HomePage_UK(driver); break; } return homePage; }...}public T InstancePage<T>() where T : BasePage{ return (T).Instance(WebDriver, CountryEnum.Sweden);}Error CS0119 'T' is a type, which is not valid in the given context InfrastructureSelenium C:\testSelenium\Infrastructure\Helper\HelperSelenium.cs 140 ActiveError CS0119 'T' is a type parameter, which is not valid in the given context InfrastructureSelenium C:\testSelenium\Infrastructure\Helper\HelperSelenium.cs 140 Active
1 回答
蝴蝶不菲
TA貢獻1810條經驗 獲得超4個贊
最后我通過使用修復：
public T InstantiatePage<T>() where T : class
{
// COUNTRY code as defined in
// https://en.wikipedia.org/wiki/ISO_3166-1_alpha-2#Officially_assigned_code_elements
var className = string.Format("{0}_{1}", typeof(T).FullName, getCulture());
// T will be base class if no derived class with COUNTRY code suffix is found
var classType = Type.GetType(className) ?? typeof(T);
// Instantiate the page
var instance = Activator.CreateInstance(classType, new object[] { WebDriver });
return (T)instance;
}
我很確定使用 PageObject.PageFactory 可以改善它
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