Add XML element to existing XmlNodeList C#? [Answered]RSS

• • Reply
  

  Narsa8

  Member

  2 Points

  1 Post

  Add XML element to existing XmlNodeList C#?

  Apr 04, 2017 03:53 AM|Narsa8|LINK

  Hi,

  I am getting strucked in below concept.

  I have an xml string  like this..

  <ResponseData> 
    <a> 
      <a1>1</a1> 
      <a2>1</a2> 
    </a> 
    <b> 
      <b1>1</b1> 
      <b2>2</b2> 
    </b> 
    <b> 
      <b1>3</b1> 
      <b2>4</b2> 
    </b> 
    <c> 
      <c1>1</c1> 
      <c2>2</c2> 
    </c> 
  </ResponseData> 

  and desired output of XML string is
  
  

  <ResponseData> 
    <a> 
      <a1>1</a1> 
      <a2>1</a2> 
    </a> 
    <B>
      <b> 
        <b1>1</b1> 
        <b2>2</b2> 
      </b> 
      <b> 
        <b1>3</b1> 
        <b2>4</b2> 
      </b> 
    </B>
    <c> 
      <c1>1</c1> 
      <c2>2</c2> 
    </c> 
  </ResponseData> 

  And I have tired until this part and could not find a solution how to add new element to existing XMLNodeList

   XmlDocument doc = new XmlDocument();
              doc.LoadXml("<ResponseData><a><a1>1</a1><a2>1</a2></a><b><b1>1</b1><b2>2</b2></b><b><b1>3</b1><b2>4</b2></b><c><c1>1</c1><c2>2</c2></c></ResponseData>");
  
              XmlNode root = doc.DocumentElement;
  
              //Create a new node.
              XmlElement elem = doc.CreateElement("B");
  
              XmlNodeList accountNodes = doc.GetElementsByTagName("b");         
           
              // ?
            

  How to add 

  <B></B>

   element for whole 

  <b></b>

   elementsList?

  Please help me on this.

  Thanks in advance

  
  
  

• • Reply
  

  kaushalparik...

  All-Star

  31212 Points

  7048 Posts

  Re: Add XML element to existing XmlNodeList C#?

  Apr 04, 2017 07:28 AM|kaushalparik27|LINK

  Going thru XElement will be much easier than XmlDocument:

  using System;
  using System.Xml.Linq;
  using System.Xml.XPath;
  
  namespace WebApp
  {
      public partial class WebForm89 : System.Web.UI.Page
      {
          protected void Page_Load(object sender, EventArgs e)
          {
              XElement xSrc = XElement.Parse("<ResponseData><a><a1>1</a1><a2>1</a2></a><b><b1>1</b1><b2>2</b2></b><b><b1>3</b1><b2>4</b2></b><c><c1>1</c1><c2>2</c2></c></ResponseData>");
              XElement xResult = new XElement("ResponseData",
                                                  xSrc.XPathSelectElements("a"),
                                                  new XElement("B", xSrc.XPathSelectElements("b")),
                                                  xSrc.XPathSelectElements("c"));
          }
      }
  }

  

  नमस्ते,
  [KaushaL] Blog Twitter [MS MVP 2008 & 2009] [MCC 2011] [MVP Reconnect 2017]
  Don't forget to click "Mark as Answer" on the post that helped you
• • Reply
  

  Eric Du

  Contributor

  4300 Points

  1802 Posts

  Re: Add XML element to existing XmlNodeList C#?

  Apr 04, 2017 08:09 AM|Eric Du|LINK

  Hi Narsa8,

  According to your description, as far as I know, you could use remove method to remove the related elements. Then append a new element. Then append removed elements into new element. Please refer to this sample:

  Sample Code:

  protected void Button1_Click(object sender, EventArgs e)
          {
              XmlDocument xmlDoc = new XmlDocument();
              xmlDoc.LoadXml(@"<NonFuel><Desc>Fuel</Desc><Desc>Non</Desc><Description></Description><Dispute>0</Dispute></NonFuel>");
              XmlNode root = xmlDoc.DocumentElement;
  
              //Remove the title element.
              root.RemoveChild(root.ChildNodes[0]);
              root.RemoveChild(root.ChildNodes[0]);
  
  
              XmlElement elem = xmlDoc.CreateElement("title");
            
              root.AppendChild(elem);
              XmlNode Descone = xmlDoc.CreateElement("Desc");
              Descone.InnerText = "Fuel";
              XmlNode Desctwo = xmlDoc.CreateElement("Desc");
              Desctwo.InnerText = "Non";
  
              root.ChildNodes[2].AppendChild(Descone);
              root.ChildNodes[2].AppendChild(Desctwo);
          }

  Best Regards,

  Eric Du

  MSDN Community Support
  Please remember to click "Mark as Answer" the responses that resolved your issue.
  If you have any compliments or complaints to MSDN Support, feel free to contact MSDNFSF@microsoft.com.