XPath : Get nodes where child node contains an attributeHow to select node that have and attribute and whose parent have another attribute in c#

Question

i have an XML like

<Validation>
    <Presentation>
        <Slide Tag = "Pippo">
            <Shape Name = "Pluto"/>
        </Slide>
        <Shape Name = "Pluto"/>
    </Presentation>
</Validation>

how can i improve this c# code snippet

 String xPath = string.Format("/Validation/Presentation/Shape[@Name='{0}'][1]", "Pluto");
 XmlNode node = doc.DocumentElement.SelectSingleNode(xPath);

to get only the shape node with attribute Name "Pluto" whose parent have the attribute Tag "Pippo"?

Andrey Korneyev · Accepted Answer · 2015-06-01 15:59:25Z

4

You can get this node using following Xpath string:

string xPath = string.Format("//*[@Tag='{0}']/Shape[@Name='{1}']", "Pippo","Pluto");
XmlNode node = doc.DocumentElement.SelectSingleNode(xPath);

answered Jun 1, 2015 at 15:59

Andrey Korneyev

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2 Comments

Matt3o Over a year ago

Is it equivalent to xPath = string.Format("/Validation/Presentation/Slide[@Tag='{0}']/Shape[@Name='{1}'][1]", "Pippo", "Pluto"); ?

Andrey Korneyev Over a year ago

@Matt3o it is not. Your query selects Shape having name Pluto and parent /Validation/Presentation/Slide with tag Pippo. My query selects exactly as it was stated in your question: "Shape node with attribute Name "Pluto" whose parent have the attribute Tag "Pippo" - i.e. parent can be any node having this tag, not only /Validation/Presentation/Slide.

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