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writing to an xml file

 

writing to an xml file
hiphop_13

13 Sep, 2007 - 12:42 AM
Post #1

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Hi

i have this xml file
CODE

<form>
  <name>test</name>
  <controls>
      <control type="textbox" caption="name" order="1"></control>
  </controls>
</form



i used the following code to write the xml file, but it didnt work:( plz help
CODE

XmlTextWriter bankWriter = new XmlTextWriter("C:\\Documents and Settings\\User\\My Documents\\Visual Studio 2005\\Projects\\xml.xml", null);
            try
            {
                bankWriter.Formatting = Formatting.Indented;
                bankWriter.Indentation = 6;
                bankWriter.Namespaces = false;

                bankWriter.WriteStartDocument();

                bankWriter.WriteStartElement("", "form", "");

                bankWriter.WriteStartElement("", "name", "");
                bankWriter.WriteString("test");
                bankWriter.WriteEndElement();

                bankWriter.WriteStartElement("", "controls", "");
                bankWriter.WriteElementString("control",null);
                bankWriter.WriteAttributeString("type", "textbox");
                bankWriter.WriteAttributeString("caption", "name");
                bankWriter.WriteAttributeString("order", "1");
                bankWriter.WriteEndAttribute();
                bankWriter.WriteEndAttribute();
                bankWriter.WriteEndAttribute();
                bankWriter.WriteEndElement();
                bankWriter.WriteEndElement();
                bankWriter.WriteEndElement();
                
                bankWriter.Flush();
            }
            catch (Exception ex)
            {
                Console.WriteLine("Exception: {0}", e.ToString());
            }
            finally
            {
                if (bankWriter != null)
                {
                    bankWriter.Close();
                }
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hammerstein2007

RE: Writing To An Xml File

13 Sep, 2007 - 02:53 AM
Post #2

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Joined: 13 Sep, 2007
Posts: 1


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You start an element and until you end the element, the attributes are added to that element. Make sure you're matching up the element start/end properly in your code. The code you posted earlier wouldn't compile without some changes.

If you read the exceptions you're getting, look at the resulting output (it does stop at where it was in the file.. ) you can figure out just what is happening.

CODE

XmlTextWriter bankWriter =
                new XmlTextWriter(
                    @"C:\\xml.xml", null );
            try
            {
                bankWriter.Formatting = Formatting.Indented;
                bankWriter.Indentation = 6;
                bankWriter.Namespaces = false;

                bankWriter.WriteStartDocument( );

                bankWriter.WriteStartElement( "", "form", "" );

                bankWriter.WriteStartElement( "", "name", "" );
                bankWriter.WriteString( "test" );
                bankWriter.WriteEndElement( );

                bankWriter.WriteStartElement( "", "controls", "" );
                bankWriter.WriteStartElement( "", "control", "" );
                bankWriter.WriteAttributeString( "type", "textbox" );
                bankWriter.WriteAttributeString( "caption", "name" );
                bankWriter.WriteAttributeString( "order", "1" );
                bankWriter.WriteEndElement( );
                bankWriter.WriteEndElement( );
                bankWriter.WriteEndElement( );

                bankWriter.Flush( );
            }
            catch ( Exception ex )
            {
                Console.WriteLine( "Exception: {0}", ex.ToString( ) );
            }
            finally
            {
                    bankWriter.Close( );
            }
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jp42

RE: Writing To An Xml File

14 Sep, 2007 - 12:30 PM
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Joined: 21 Aug, 2007
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You might want to have a look at the XmlDocument class :
http://msdn2.microsoft.com/en-us/library/s...mldocument.aspx

I have been working with writing to xml quite a bit lately, and use that class for all my needs. Here is some sample code for you, I was writing an Rss doc... youll get the idea...

CODE

private void CreateNewRssDocument()
        {
            _rssDoc = new XmlDocument();
            XmlDeclaration xmlDec = _rssDoc.CreateXmlDeclaration("1.0", "utf-8", null);
            //create the root(rss) element
            XmlElement rssElement = _rssDoc.CreateElement(_dictionary["rssElement"]);
            //set the attribute and value for the rss element
            rssElement.SetAttribute(_dictionary["rssElementAttr"], _dictionary["rssElementAttrValue"]);
            //append the root
            _rssDoc.AppendChild(rssElement);
            //create the channel element
            XmlElement channelElement = _rssDoc.CreateElement(_dictionary["channelElement"]);
            //append the channel element to the beginning of the rss element children
            rssElement.PrependChild(channelElement);
            //set the static children of the channel element
            //title
            XmlElement titleElement = _rssDoc.CreateElement(_dictionary["titleElement"]);
            channelElement.AppendChild(titleElement);
            titleElement.InnerText = _dictionary["titleElementValue"];
            //link
            XmlElement linkElement = _rssDoc.CreateElement(_dictionary["linkElement"]);
            channelElement.AppendChild(linkElement);
            linkElement.InnerText = _dictionary["linkElementValue"];
            //language
            XmlElement languageElement = _rssDoc.CreateElement(_dictionary["languageElement"]);
            channelElement.AppendChild(languageElement);
            languageElement.InnerText = _dictionary["languageElementValue"];
            //description
            XmlElement descriptionElement = _rssDoc.CreateElement(_dictionary["descriptionElement"]);
            channelElement.AppendChild(descriptionElement);
            descriptionElement.InnerText = _dictionary["descriptionElementValue"];

            //insert the xml declaration before the document element
            _rssDoc.InsertBefore(xmlDec, _rssDoc.DocumentElement);

            //save the doc
            _rssDoc.Save(_docPath);

        }


This post has been edited by jp42: 14 Sep, 2007 - 12:31 PM
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hiphop_13

RE: Writing To An Xml File

15 Sep, 2007 - 01:31 PM
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Joined: 4 Jun, 2007
Posts: 36



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Thanks a lot.
I appreciate your help
smile.gif

Thank you for your help:)
Thanks
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