How to delete specific nodes from an XML file using LINQ in C#

Question

I've an xml file (Sample.xml) which has the following structure

    <RootElement>     
        <Child Name="FirstChild" Start="1" End="2"/>
        <Child Name="SecondChild" Start="0" End="2"/>           
        <Child Name="ThirdChild" Start="1" End="2"/>            
        <Child Name="FourthChild" Start="0" End="2"/>            
        <Child Name="FifthChild" Start="0" End="2"/>            
        <Child Name="SixthChild" Start="1" End="2"/>   
        <MatchedChilds>  
            <Child Name="FirstChild" />  
            <Child Name="SecondChild" />  
            <Child Name="ThirdChild" />  
            <Child Name="FourthChild" />  
            <Child Name="FifthChild" />  
            <Child Name="SixthChild" />   
    </MatchedChilds> 
</RootElement>

i need to remove the elements "Child" if it is directly under "RootElement"

please give me a XML to LINQ approch to do this

SLaks · Accepted Answer · 2010-06-29 11:49:43Z

2

You need to loop over the nodes and remove them, like this:

foreach(var child in root.Elements("Child").ToArray())
    child.Remove();

The Elements call will return all direct child elements of the element you call it on; it will not return grandchildren;

You must call ToArray or you'll be modifying the collection as you enumerate it.

answered Jun 29, 2010 at 11:49

SLaks

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Comments

Thorin Oakenshield · Accepted Answer · 2010-06-29 12:06:22Z

1

        XDocument X_DOC = XDocument.Load(Application.StartupPath + "\\Sample.xml");
        X_DOC.Root.Elements("Child").Remove();
        X_DOC.Save(Application.StartupPath + "\\Sample.xml");

edited Jun 29, 2010 at 12:06

answered Jun 29, 2010 at 11:58

Thorin Oakenshield

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2 Comments

SLaks Over a year ago

You should call Path.Combine. Also, you don't need the Where call.

Thorin Oakenshield Over a year ago

@ SLaks : Thank you..... Edited in (line no. 2) .Kindly post an example for Path.Combile

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