WatiN: When finding text, how do I get a reference to its containing element?
Question
Given the following HTML page:
<html>
<head>
<title>WatiN Test</title>
</head>
<body>
<div>
<p>Hello World!</p>
</div>
</body>
</html>
I would like to be able to search for some text (lets say "World" ), and get a reference to its parent element (in this case the <p> element).
If I try this:
var element = ie.Element(Find.ByText(t => t.Contains("World")))
or this:
var element = ie.Element(e => e.Text != null && e.Text.Contains("World"));
I get back the <html> element. This is consistent with the WatiN documentation for Element.Text which states: "Gets the innertext of this element (and the innertext of all the elements contained in this element)".
Since all text within the page is contained within the <html> element, I'll always get this back instead of the immediate parent.
Is there a way to get just the text immediately beneath an element (not the text within the elements contained by it)?
Is there another way of doing this?
Many thanks.
3 answers
solution1
3 2012-06-06 08:21:01
您可以使用Find.BySelector
var element = ie.Element(Find.BySelector("p:contains('World')"));
solution2
2 ACCPTED 2011-01-20 00:12:27
Bellow code will find first element inside the <body/> with text containing "World". Elements which are classified as element containers and has child elements will be omitted.
var element = ie.ElementOfType<Body>(Find.First()).Element(e =>
{
if (e.Text != null && e.Text.Contains("World"))
{
var container = e as IElementContainer;
if (container == null || container.Elements.Count == 0)
return true;
}
return false;
});
Note : You may wonder why I wrote ie.ElementOfType<Body>(Find.First()).Element instead of just ie.Element . This should work, but it doesn't. I think it's a bug. I wrote a post about it on WatiN mailing list and will update this answer when I receive the answer.
solution3
1 2011-01-19 15:06:52
I've come up with something that works, but it's a bit hacky and very inefficient.
This essentially works on the basis that the deepest containing element will have the shortest InnerHtml . That is, all other elements which contain the immediate parent will include it's HTML as well, and therefore be longer!
public static Element FindElementContaining(IElementsContainer ie, string text)
{
Element matchingElement = null;
foreach (Element element in ie.Elements)
{
if (element.Text == null) continue;
if (!element.Text.ToLower().Contains(text.ToLower())) continue;
// If the element found has more inner html than the one we've already matched, it can't be the immediate parent!
if (matchingElement != null && element.InnerHtml.Length > matchingElement.InnerHtml.Length) continue;
matchingElement = element;
}
return matchingElement;
}
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