how to write in xml? RSS

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  exbond

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  58 Points

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  how to write in xml?

  Apr 11, 2012 09:09 AM|LINK

  <asp:Label ID="Label1" runat="server" Text=""></asp:Label><br />
          <asp:TextBox ID="TextBox1" runat="server" TextMode="MultiLine" CssClass="textbox" ></asp:TextBox>
          <asp:Button ID="Button1" runat="server" Text="post" CssClass="button"
              onclick="Button1_Click" />
  
  
  
  
   protected void Button1_Click(object sender, EventArgs e)
      {
          XmlDocument xdoc = new XmlDocument();
          xdoc.Load(Server.MapPath(@"chat.xml"));         //error root element not found
          
          XmlElement xe = xdoc.CreateElement("chat");
          
          XmlElement xchatpost = xdoc.CreateElement("chatpost");
          xchatpost.InnerText = DateTime.Now.ToString();
          xe.AppendChild(xchatpost);
  
          XmlElement xpost = xdoc.CreateElement("post");
          xpost.InnerText = TextBox1.Text;
          xe.AppendChild(xpost);
  
          xdoc.DocumentElement.AppendChild(xe);
          xdoc.Save(Server.MapPath("chat.xml"));
          
          Response.Write("posted...");
      }

  this code gives an error :   root element not found?

  venu
  • Moved by anas on Apr 11, 2012 09:37 AM
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  chikkanti

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  80 Posts

  Re: how to write in xml?

  Apr 11, 2012 09:15 AM|LINK

  //Start writer

  XmlTextWriter writer = new XmlTextWriter(Server.MapPath("~/XMLFiles/" + xmlfile_name + ".xml"), System.Text.Encoding.UTF8);
  //Start XM DOcument
  writer.WriteStartDocument(true);
  writer.Formatting = Formatting.Indented;
  writer.Indentation = 2;
  //ROOT Element
  writer.WriteStartElement("Books");
  //call create nodes method
  createNode(book_name, book_price, author1_fname, author1_lname, author2_fname, author2_lname, author1_country, author1_state, author2_country, author2_state, writer);
  writer.WriteEndElement();
  //End XML Document
  writer.WriteEndDocument();
  //Close writer
  writer.Close();

  • Edited by chikkanti on Apr 11, 2012 09:24 AM
  • Split by anas on Apr 11, 2012 09:32 AM
  • Edited by chikkanti on Apr 11, 2012 02:09 PM
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  Ashutosh Pat...

  Contributor

  5737 Points

  1105 Posts

  Re: how to write in xml?

  Apr 11, 2012 09:16 AM|LINK

  there is some XML syntex issue in your file. please check the file as It might be missing the root element that every xml should contain.

  Ashutosh Pathak
  Blog: http://catchcode.blogspot.com
  Please mark it as answer if it helps, as clicking on the button can save time of others :)
  MCP,MCAD,MCSD,MCTS
  • Split by anas on Apr 11, 2012 09:34 AM
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  ramiramilu

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  Re: how to write in xml?

  Apr 11, 2012 09:18 AM|LINK

  check out here on how to create root node for XmlDocument - http://www.devx.com/tips/Tip/21168 

  Thanks,

  Website
  JumpStart
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  ItsSunny

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  2163 Points

  676 Posts

  Re: how to write in xml?

  Apr 11, 2012 09:20 AM|LINK

  XmlDocument xmlDoc = new XmlDocument();
          xmlDoc.Load(Server.MapPath("categories.xml"));

          XmlNodeList nodeList = xmlDoc.SelectNodes("/CategoryList/Category[@ID='01']");

          // update MainCategory
          nodeList[0].ChildNodes[0].InnerText = "ASP.NET";
          // update Description
          nodeList[0].ChildNodes[1].InnerText = "This is now my ASP.NET list.";
          // update Active
          nodeList[0].ChildNodes[2].InnerText = "false";

       
          xmlDoc.Save(Server.MapPath("categories.xml"))

  Thanks & Regards,
  Arun Sunny.
  • Split by anas on Apr 11, 2012 09:34 AM
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  evello880

  Member

  226 Points

  75 Posts

  Re: how to write in xml?

  Apr 11, 2012 09:24 AM|LINK

  http://forums.asp.net/t/1469398.aspx/1

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  kavita_khand...

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  1930 Posts

  Re: how to write in xml?

  Apr 11, 2012 09:59 AM|LINK

  @exbond

  Your code is perfect. The one and only problem is that the  xdoc.DocumentElement is NULL. so you have to feeds it giving some element. Refer my code below for the same.

  XmlDocument xdoc = new XmlDocument();
          //xdoc.Load(Server.MapPath(@"chat.xml")); //error root element not found
  
          string myRoot = "<chat></chat>";
          xdoc.LoadXml(myRoot);
  
          XmlElement xe = xdoc.CreateElement("chat");
  
          XmlElement xchatpost = xdoc.CreateElement("chatpost");
          xchatpost.InnerText = DateTime.Now.ToString();
          xe.AppendChild(xchatpost);
  
          XmlElement xpost = xdoc.CreateElement("post");
          xpost.InnerText = "temp text"; //TextBox1.Text;
          xe.AppendChild(xpost);
  
          xdoc.DocumentElement.AppendChild(xe);
          xdoc.Save(Server.MapPath("chat.xml"));
  
          Response.Write("posted...");

  
  HTH!

  Please mark this post as Answer if it is of help to you!
  I would love to change the world, but they wont give me the source code.
  • Edited by kavita_khandhadia on Apr 11, 2012 10:00 AM
  • Marked as answer by exbond on Apr 11, 2012 10:23 AM
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  exbond

  Member

  58 Points

  144 Posts

  Re: how to write in xml?

  Apr 11, 2012 10:23 AM|LINK

  my code is perfect it only missing the root element!!!!

  if i write the root node it will work

  thank u @kavita

  venu
  • Marked as answer by decker dong - msft on Apr 13, 2012 02:15 AM