[英]Returning a substring from the value field of an xml doc using Linq to XML
The XML field is as such : XML字段是这样的:
<Element> 0 (0)</Element>
As far as I know this should do what I wish, you can ignore the irrelevant part (e.Descendants) as this is correct (and I have verified this) in the greater scheme of my query. 据我所知,这应该做我希望做的事情,您可以忽略不相关的部分(例如,后代),因为这在我的更大查询方案中是正确的(并且我已经验证了这一点)。 :
:
Regex regularExpression = new Regex(@"(\d+) \((\d+)\)", RegexOptions.IgnorePatternWhitespace);
And the Linq to XML in question : 还有Linq to XML的问题:
variableName = e.Descendants().Where(i => regularExpression.IsMatch(i.Value.ToString())).Select(j => regularExpression.Match(j.Value.ToString()).Groups[1].Value.ToString()).ToList()
However when I attempt to print this value, it is not printing anything. 但是,当我尝试打印此值时,它没有打印任何内容。
What have I done incorrectly here ? 我在这里做错了什么?
您的正则表达式应使用'\\s'
而不是' '
:
Regex regEx2 = new Regex(@"(\d+)\s\((\d+)\)", RegexOptions.IgnorePatternWhitespace);
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