How to get all options in a drop-down list by Sele

2020-02-25 07:38发布

I'm new to both C# and Selenium WebDriver.

I know how to select/click on an option in a drop-down list, but I've a problem before that. Since the drop-down list is dynamically generated, I have to get all options/values from the list before running each case.

Is there anyone kindly tell me how to get all values/options from a drop-down list. I'm using IE and I didn't find any class which supports method to get values/options in Selenium.IE namespace for C#.

My example: A list contains several time zones:

<TD>
  <select name = "time_zone">
    <option value "-09:00"><script>timezone.Alaska</script></option>
    <option value "+00:00"><script>timezone.England</script></option>
    <option value "+02:00"><script>timezone.Greece</script></option>
    <option value "+05:30"><script>timezone.India</script></option>
  </select>
<TD>

This is a drop-down list in an IE page and how to get the dynamically generated time zone list?

My code:

IWebElement elem = driver.FindElement(By.XPath("//select[@name='time_zone']"));
List<IWebElement> options = elem.FindElements(By.TagName("option"));

C# just pops an Error: Cannot implicitly covert type 'OpenQA.Selenium.IWebElement' to 'System.Collections.Generic.List'. An explicit conversion exists (are you missing a cast?).

thanks.

11条回答
聊天终结者
2楼-- · 2020-02-25 07:56

You can use selenium.Support to use the SelectElement class, this class have a property "Options" that is what you are looking for, I created an extension method to convert your web element to a select element

public static SelectElement AsDropDown(this IWebElement webElement)
{
    return new SelectElement(webElement);
}

then you could use it like this

var elem = driver.FindElement(By.XPath("//select[@name='time_zone']"));
var options = elem.AsDropDown().Options
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虎瘦雄心在
3楼-- · 2020-02-25 07:56

Make sure you reference the WebDriver.Support.dll assembly to gain access to the OpenQA.Selenium.Support.UI.SelectElement dropdown helper class. See this thread for additional details.

Edit: In this screenshot, you can see that I can get the options just fine. Is IE opening up when you create a new InternetExplorerDriver? Screenshot

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我只想做你的唯一
4楼-- · 2020-02-25 07:58

Here is code in Java to get all options in dropdown list.

WebElement sel = myD.findElement(By.name("dropdown_name"));
List<WebElement> lists = sel.findElements(By.tagName("option"));
    for(WebElement element: lists)  
    {
        String var2 = tdElement.getText();
        System.out.println(var2);
    }

Hope it may helpful to someone.

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迷人小祖宗
5楼-- · 2020-02-25 07:59

Use IList<IWebElement> instead of List<IWebElement>.

For instance:

IList<IWebElement> options = elem.FindElements(By.TagName("option"));
foreach (IWebElement option in options)
{
    Console.WriteLine(option.Text);
}
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贪生不怕死
6楼-- · 2020-02-25 08:00

You can try using the WebDriver.Support SelectElement found in OpenQA.Selenium.Support.UI.Selected namespace to access the option list of a select list:

IWebElement elem = driver.FindElement(By.XPath("//select[@name='time_zone']"));

SelectElement selectList = new SelectElement(elem);
IList<IWebElement> options = selectList.Options;

You can then access each option as an IWebElement, such as:

IWebElement firstOption = options[0];
Assert.AreEqual(firstOption.GetAttribute("value"), "-09:00");
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唯我独甜
7楼-- · 2020-02-25 08:01

To get all options in a drop-down list by Selenium WebDriver C#:

SelectElement TimeZoneSelect = new SelectElement(driver.FindElement(By.Name("time_zone")));
IList<IWebElement> ElementCount = TimeZoneSelect.Options;
int ItemSize = ElementCount.Count;

for (int i = 0; i < ItemSize; i++)
{
    String ItemValue = ElementCount.ElementAt(i).Text;
    Console.WriteLine(ItemValue);
}
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