How to update node value in XML? [Answered]RSS

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  maheshvishnu

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  How to update node value in XML?

  Apr 16, 2015 04:42 AM|maheshvishnu|LINK

  I have a string like "<NavigationDetails Title=\"Nw\" Description=\"Nw\" NavigateTo=\"Nw\" ImageUrl=\"\" MenuOrder=\"\" />"

  i want to update MenuOrder value to 1 if it's value is null or empty.How to do this?

• • Reply
  mshoaiblibra

  Contributor

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  Re: How to update node value in XML?

  Apr 16, 2015 05:09 AM|mshoaiblibra|LINK

  maheshvishnu

  "<NavigationDetails Title=\"Nw\" Description=\"Nw\" NavigateTo=\"Nw\" ImageUrl=\"\" MenuOrder=\"\" />"

  Parse this string in XmlDocument.

  XmlDocument xml = new XmlDocument();
  
  xml.LoadXml("<NavigationDetails Title=\"Nw\" Description=\"Nw\" NavigateTo=\"Nw\" ImageUrl=\"\" MenuOrder=\"\" />");

  Then add value:

  IEnumerator ie = doc.SelectNodes("/NavigationDetails").GetEnumerator();
  
              while (ie.MoveNext())
              {
                  if ((ie.Current as XmlNode).Attributes["key"].Value == "MenuOrder")
                  {
                      (ie.Current as XmlNode).Attributes["value"].Value = "hello";
                  }
              }
  
              xml.Save(path);

  Please mark the replies as if they help or unmark if not.
  
  M Shoaib Waheed
  MCSD & MCPD [Web Development 4.0]
  http://shoaib.pk
• • Reply
  Fei Han - MS...

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  Re: How to update node value in XML?

  Apr 17, 2015 01:27 AM|Fei Han - MSFT|LINK

  Hi maheshvishnu,

  Thanks for your post.

  Please refer to the following sample to update the value of XML attribute.

  XDocument xdoc = XDocument.Load(Server.MapPath("NavigationDetails.xml"));
  
  foreach (var element in xdoc.Descendants("NavigationDetails"))
  {
      string MenuOrder = element.Attribute("MenuOrder").Value.ToString();
  
      if (MenuOrder=="")
      {
          element.Attribute("MenuOrder").Value = "1";
      }
  }
  
  xdoc.Save(Server.MapPath("NavigationDetails.xml")); 
  

  Best Regards,

  Fei Han

  
  MSDN Community Support
  Please remember to "Mark as Answer" the responses that resolved your issue.