I have a XML in string format and it is comin from database. I want to remove particular item in that xml. And IDea?

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XML

<?xml version="1.0" encoding="utf-16"?>
<ArrayOfString xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <string>a</string>
  <string>b</string>
  <string>c</string>
  <string>d</string>
  <string>e</string>
</ArrayOfString>

So this is my xml, I want to delete particular element for example 'e' in this case

Posted 16-Mar-15 1:44am

Member 11491784

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Maciej Los 16-Mar-15 7:53am

What have you tried?

Member 11491784 16-Mar-15 8:01am

Dim doc As New System.Xml.XmlDocument
doc.LoadXml(objXMl)
Dim node = doc.SelectNodes("/ArrayOfString")
For Each elem As System.Xml.XmlElement In node
If elem.InnerText = val Then
elem.ParentNode.RemoveChild(elem)
Exit For
End If
Next

Member 11491784 16-Mar-15 8:01am

in objXML , xml is coming.

Member 11491784 16-Mar-15 8:03am

But Count of node is coming empty.

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Maciej Los · Answer 1 · 2015-03-16T02:50:00

You have to read xml from string (database field), then to use Linq to find proper node/element and finally to rmove it:

VB

Sub Main
    Dim xcontent As String = "<?xml version='1.0' encoding='utf-16'?>"
        xcontent = xcontent & "<ArrayOfString xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xsd='http://www.w3.org/2001/XMLSchema'>"
        xcontent = xcontent & "<string>a</string>"
        xcontent = xcontent & "<string>b</string>"
        xcontent = xcontent & "<string>c</string>"
        xcontent = xcontent & "<string>d</string>"
        xcontent = xcontent & "<string>e</string>"
        xcontent = xcontent & "</ArrayOfString>"
    Dim rdr As XmlReader  = XmlReader.Create(New StringReader(xcontent))

    Dim xdoc As XDocument = XDocument.Load(rdr)
    Dim ele = xdoc.Elements("ArrayOfString")
    Dim node1 = ele.Descendants("string").Where(Function(x) x.Value ="e").Select(Function(x) x)
    node1.Remove() 'node has been removed
    'xdoc.Save("fullfilename")

End Sub

Result:

XML

<ArrayOfString xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <string>a</string>
  <string>b</string>
  <string>c</string>
  <string>d</string>
</ArrayOfString>