如何使用 Selenium Web 驱动程序上传文件/处理窗口

我正在尝试自动化一个场景，在该场景中我必须上传文档，但我无法处理上传文件一旦我单击网络应用程序上的“选择文件”按钮，就会出现窗口。

我使用的是 C# 语言和 Chrome 浏览器。

我的 C# 测试用例：

[Test, Description("JAVA_67350: Filename is shown as tooltip in browse button after upload is cancelled in Firefox browser ")]
[Component(Component.UploadBox)]
[Priority(Priority.High)]
[CustomerID(160100)]

public void JAVA_67350()
{
    driver.Navigate().GoToUrl("http://localhost/JavaScript/CR_Samples/JavaScriptSamples/JAVA_67350/UploadBoxUntitled.html");
    driver.Manage().Window.Maximize();
    Thread.Sleep(3000);
    //clicking upload button
    driver.FindElement(By.XPath(".//*[@id='UploadDefault']/div[1]/input[2]")).Click();
    Thread.Sleep(TimeSpan.FromSeconds(1));
    //file uploading
    SendKeys.SendWait("C:\\UploadBox\\Examplefordocx.docx" + @"{RIGHT}");
    Thread.Sleep(500);
    SendKeys.SendWait(@"{TAB}");
    Thread.Sleep(500);
    SendKeys.SendWait(@"{TAB}");
    Thread.Sleep(500);
    SendKeys.SendWait(@"{ENTER}");
    Thread.Sleep(3000);
    }