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I am trying to locate the first <th> element under a <table> element. The table element is tagged with a particular id, and is locatable when I only look as far as that tag.
But when I try to go a little further down and search using the XPath below, it returns a null element. The '/th[0]' is to say: return the first <th> element, under the element that is tagged with the particular id.
In the example, the id value is populated prior to the search:
"//*[@id='{0}']/th[0]"
XPath indexes are 1-based. Try:
//*[@id='{0}']/th[1]This trips me up all the time as well; too much time spent with 0-based indexing in C, C++, etc.