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for example is the following xpath string valid:
/web:input_text[@value=null]
which means the element doest not has a value attribute.
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Let us discuss examples of the XPath attribute. This selects all attributes of the specified context node. With Xpath expression let’s see how to extract the value of an attribute. Finding Nodes with a Specific value on an attribute Find nodes by substring matching the value of an attribute.
With Xpath expression let’s see how to extract the value of an attribute. Finding Nodes with a Specific value on an attribute Find nodes by substring matching the value of an attribute. Find nodes using a substring that matches the beginning of an attribute’s value. The above code loads the XML from.xml into a DOMDocument object instance.
Thanks. Your request is failing for a different reason - as you've surmised, you have a valid XPath filter but whenever you try an add a custom attribute to a filter you get the "Access Denied" error. This is because whenever you create a new attribute and you expect to use it in a filter you need to modify the Filter Scope objects to allow it.
The “@” symbol is used to access attributes. Xpath Syntax is given as: /path to/element [@attribute_name='search value'] /path to/element [@attribute_name="search value"] How XPath attribute works?
This XPath returns web:input_text which don't have value attribute:
/web:input_text[not(@value)]
XPath /web:input_text[@value=null] selects web:input_text which have value of value attribute = null node.
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