Using XPath with node attributes

Question

I have the very basics of XPaths down, but am having some trouble in determining if the following is possible in C# code using an XPath (or if I need to move it out into other code, as I currently have done).

I have an XML Document that consists of the following structure:

 <xml>
     <parameters>
        <setParameter name="SomeName" value="SomeValue" />
     </parameters>
 </xml>

Where there are multiple set Parameter values. Now what I need to do is only retrieve those setParameter nodes that contain certain values for the name attribute. I may have a list of possible matches for these values, but they won't be full matches, they will be values the node's name attribute must contain.

For example in the structure code above, if I had a value of 'men' to match, it would come back with the node, as 'men' is contained in 'SomeName'

What is the shorthand to do this?

do you have an xpath example?

eLRuLL
– eLRuLL

2017-02-13 16:35:18 +00:00
Commented Feb 13, 2017 at 16:35 — eLRuLL
– eLRuLL, Commented Feb 13, 2017 at 16:35
very simple at: "parameters/setParameter"

Marshall Tigerus
– Marshall Tigerus

2017-02-13 16:36:51 +00:00
Commented Feb 13, 2017 at 16:36 — Marshall Tigerus
– Marshall Tigerus, Commented Feb 13, 2017 at 16:36

Kilazur · Accepted Answer · 2017-02-13 16:40:19Z

1

Retrieving the value of all attributes named value for all elements named setParameter having a name attribute's value containing men:

//setParameter[contains(@name, 'men')]/@value

//setParameter

Retrieves all nodes named setParameter (can be replaced with /xml/parameters/setParameter)

[...]

Checks an attribute for the current node selection

contains(@name, 'men')

Returns true if the name attribute's value contains men

/@value

Retrieves the value attribute's value.

edited Feb 13, 2017 at 16:40

answered Feb 13, 2017 at 16:14

Kilazur

3,1871 gold badge25 silver badges52 bronze badges

Sign up to request clarification or add additional context in comments.

4 Comments

Polyfun Over a year ago

Is this case-insensitive?

Kilazur Over a year ago

@Polyfun No, it's case sensitive. See this answer for case-insensitiveness.

Polyfun Over a year ago

OP wanted a case-insensitive match.

Kilazur Over a year ago

@Polyfun I must be sleepy, but I don't see this requirement.

eLRuLL · Accepted Answer · 2017-02-13 16:42:17Z

0

I don't think there is a way to match an attribute with a wildcard, but you could use the contains method, something like:

//parameters/setParameter[contains(@name, "stringexample")]

answered Feb 13, 2017 at 16:42

eLRuLL

18.8k9 gold badges79 silver badges106 bronze badges

Comments

Andersson · Accepted Answer · 2017-02-13 16:54:37Z

0

Depending on your XPath version this might work or might not:

//setParameter[matches(@name,"men", "i") or matches(@name,"else", "i")]

This should match <setParameter> with name attribute that contains "men" or something "else". It is case-insensitive

Try and let me know the result

answered Feb 13, 2017 at 16:54

Andersson

52.8k18 gold badges83 silver badges132 bronze badges

Collectives™ on Stack Overflow

Using XPath with node attributes

3 Answers 3

4 Comments

Comments

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

4 Comments

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related