Question 210787 in ASP.NET Question posted in
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Asp.net – Add extra node in xml

I am trying to modify an xml and to add an extra node in it . So far I am able to add this node but I need a little tweak.

My sample XML

<Search Name="Test2" ProjTypeID="107">
<CritGroup CritGroupID="1" >
    <Crit CritID="205"/>
    <Crit CritID="208"/>
</CritGroup></Search>

I am able to add the extra node but I need to add it as the existing "Crit" Node format(Where there is no closing "Crit" instead /> is used). But I ended up with below output.

<Search Name="Test2" ProjTypeID="107">
<CritGroup CritGroupID="1" >
    <Crit>CritID="206"</Crit>
    <Crit CritID="205"/>
    <Crit CritID="208"/>
</CritGroup> </Search>

I have used below code

            XmlNode newNode = xmlDoc.CreateNode(XmlNodeType.Element, "Crit", "");
            newNode.InnerText = "CritID="206" ";

            XmlNode CritGroupNode = xmlDoc["Search"]["CritGroup"];
            XmlElement groups = CritGroupNode["CritGroup"];
            CritGroupNode.InsertAfter(newNode, groups);

Also is there any way to put the new node at the last ! For now its getting added as first? Thanks for reading and your help !

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3

Answers


  1. 0

    It is very easy via LINQ to XML.

    c#

    void Main()
{
    XDocument xdoc = XDocument.Parse(@"<Search Name='Test2' ProjTypeID='107'>
            <CritGroup CritGroupID='1'>
                <Crit CritID='205'/>
                <Crit CritID='208'/>
            </CritGroup>
        </Search>");

    var CritGroup = xdoc.Descendants("CritGroup")
        .Where(x => x.Attribute("CritGroupID").Value == "1").FirstOrDefault();
    
    CritGroup.Add(new XElement("Crit",
        new XAttribute("CritID","206")));
    
    Console.WriteLine(xdoc);
}

    Output

    <Search Name="Test2" ProjTypeID="107">
  <CritGroup CritGroupID="1">
    <Crit CritID="205" />
    <Crit CritID="208" />
    <Crit CritID="206" />
  </CritGroup>
</Search>
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  2. 0

    you can try this code

        XmlElement newElement = xmlDoc.CreateElement("Crit");
    newElement.SetAttribute("CritId", "204");

    XmlNode CritGroupNode = xmlDoc["Search"]["CritGroup"];
    XmlElement groups = CritGroupNode["CritGroup"];
    CritGroupNode.InsertAfter(newElement, groups);
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  3. 0

    I would use the XDocument solution in the other answer, but if that is not an option, this will insert a new Crit element last.

    XmlElement newNode = xmlDoc.CreateElement("Crit");
newNode.SetAttribute("CritID", "206");

XmlNode CritGroupNode = xmlDoc["Search"]["CritGroup"];
CritGroupNode.InsertAfter(newNode, CritGroupNode.LastChild);
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