Question

我了解此错误的含义。我已经阅读了其他相关问题和帖子。据我所知，我已经解决了这个问题，但仍然遇到错误。有人看到我没看到的东西吗？

    public static IWebElement RetrieveObject(IWebDriver driver, string page, string pageObject)
    {
        int rCnt = 0;

        string TablePath      = "C:\\Automation Projects\\Tables\\";
        string ObjectRepPath  = TablePath + "ObjectRepository.xlsx";
        string objpage        = " ";
        string objelement     = " ";
        string objelementType = " ";
        string objlocator     = " ";

        IWebElement locator = null;

        Application xlApp;
        Workbook xlWorkBook;
        Worksheet xlWorkSheet;
        Range range;

        xlApp       = new Application();
        xlWorkBook  = xlApp.Workbooks.Open(ObjectRepPath);
        xlWorkSheet = (Worksheet)xlWorkBook.Worksheets.get_Item(1);

        range = xlWorkSheet.UsedRange;

        for (rCnt = 1; rCnt <= range.Rows.Count; rCnt++)
        {
                    objpage        = (string)(range.Cells[rCnt, 1] as Range).Value2;
                    objelement     = (string)(range.Cells[rCnt, 2] as Range).Value2;
                    objelementType = (string)(range.Cells[rCnt, 3] as Range).Value2;
                    objlocator     = (string)(range.Cells[rCnt, 4] as Range).Value2;


            if (objpage == page && objelement == pageObject)
            {
                if (objelementType == "id")
                {
                    locator = driver.FindElement(By.Id(objlocator));
                    return locator;
                }
                else if (objelementType == "name")
                {
                    locator = driver.FindElement(By.Name(objlocator));
                    return locator;
                }
                else if (objelementType == "xpath")
                {
                    locator = driver.FindElement(By.XPath(objlocator));
                    return locator;
                }
                else
                {
                    return locator;
                }
            }
        }
    }

我将为每个可能的路径返回iWebElement“定位器”。我确定我缺少一些简单的东西，但是我盯着它看了太久了，看不到它。

Answer 1

他们没有。您应该问自己一个问题：如果没有行，怎么办？

您必须在for循环之后添加return语句。

public static IWebElement RetrieveObject(IWebDriver driver, string page, string pageObject)
{
    int rCnt = 0;

    string TablePath      = "C:\\Automation Projects\\Tables\\";
    string ObjectRepPath  = TablePath + "ObjectRepository.xlsx";
    string objpage        = " ";
    string objelement     = " ";
    string objelementType = " ";
    string objlocator     = " ";

    IWebElement locator = null;

    Application xlApp;
    Workbook xlWorkBook;
    Worksheet xlWorkSheet;
    Range range;

    xlApp       = new Application();
    xlWorkBook  = xlApp.Workbooks.Open(ObjectRepPath);
    xlWorkSheet = (Worksheet)xlWorkBook.Worksheets.get_Item(1);

    range = xlWorkSheet.UsedRange;

    for (rCnt = 1; rCnt <= range.Rows.Count; rCnt++)
    {
                objpage        = (string)(range.Cells[rCnt, 1] as Range).Value2;
                objelement     = (string)(range.Cells[rCnt, 2] as Range).Value2;
                objelementType = (string)(range.Cells[rCnt, 3] as Range).Value2;
                objlocator     = (string)(range.Cells[rCnt, 4] as Range).Value2;


        if (objpage == page && objelement == pageObject)
        {
            if (objelementType == "id")
            {
                locator = driver.FindElement(By.Id(objlocator));
                return locator;
            }
            else if (objelementType == "name")
            {
                locator = driver.FindElement(By.Name(objlocator));
                return locator;
            }
            else if (objelementType == "xpath")
            {
                locator = driver.FindElement(By.XPath(objlocator)); 
                return locator;
            }
            else
            {
                return locator;
            }
        }
    }
    return locator; // <---------------- !!
}

C＃：“并非所有代码路径都返回值”，但是它们确实是，不是吗？

1 个答案: