CODEWITHSUNDEEP
xpathsiblings
Jason
Jason

Reputation: 1431

Finding first matching sibling element while traversing the DOM

I am trying to create an xpath expression that will find the first matching sibling 'down' the dom given an initial sibling (note: initial siblings will be Tom and Steve). For example, I want to find 'jerry1' under the 'Tom' tr. I have looked into the following-sibling argument, but I'm not sure that's the best approach for this? Any ideas?

<tr>
     <a title=”Tom”/>
</tr>
<tr>
     <a title=”jerry1”/>
</tr>
<tr>
     <a title=”jerry2”/>
</tr>
<tr>
     <a title=”jerry3”/>
</tr>
<tr>
     <a title=”Steve”/>
</tr>
<tr>
     <a title=”jerry1”/>
</tr>
<tr>
     <a title=”jerry2”/>
</tr>
<tr>
     <a title=”jerry3”/>
</tr>

Upvotes: 2

Views: 216

Answers (3)

Mads Hansen
Mads Hansen

Reputation: 66723

The following XPath statement finds the first tr element that has an a with the @title "jerry1" that is a following-sibling of the tr element that has an a with the @title of "Tom"

//tr[a/@title='Tom']/following-sibling::tr[a/@title='jerry1'][1]

Upvotes: 0

matthias_h
matthias_h

Reputation: 11416

Following XPath worked for me:

(//a[@title='Tom']/parent::*/following-sibling::tr/a[@title= 'jerry1'])[1]

First matching a with title jerry1 following a tr with an a-child with title Tom.
Starting at a[@title='Tom'], going to the parent tr with /parent , selecting all following sibling tr-nodes with ::*/following-sibling::tr, that have an /a[@title= 'jerry1'] as child node. Because this would select 2 jerry1-nodes and the first jerry1 following Tom is searched, selecting the first one by wrapping the XPath with () and choosing the first match with [1].

Upvotes: 0

Slippery Pete
Slippery Pete

Reputation: 3110

following-sibling will work. This will select the a node with the title "jerry1":

//a[@title='Tom']/../following-sibling::tr/a

The /.. traverses up to Tom's parent <tr>, then following-sibling to the next <tr>, then finally the <a> node within that.

Upvotes: 1

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