Generating XML dynamically from the data entered on UI - asp.net

Question

I have a xml file which is currently made manually and I have to make a functionality(UI) where user can enter the data and I have to store the data and generate the xml file dynamically in .NET.
Problem is the format of the xml file. I am not able to decide how I am going to store that data and then dynamically generate xml from that.
Please find the some of the extract of the code from the xml file below:
<?xml version="1.0" encoding="UTF-8"?>
<DATA>
<SDACTS>
<SDACT TYPE="Economy" COLOUR="0xff0000"/>
<SDACT TYPE="Environment" COLOUR="0x00ff00"/>
<SDACT TYPE="People" COLOUR="0x0000ff"/>
<SDACT TYPE="Society" COLOUR="0xff00ff"/>
</SDACTS>
<INDUSTRIES>
<INDUSTRY TYPE="Platinum" COLOUR="0x0094B1">
<PRODUCT>Platinum</PRODUCT>
<PRODUCT>Palladium</PRODUCT>
<PRODUCT>Rhodium</PRODUCT>
<PRODUCT>Gold</PRODUCT>
</INDUSTRY>
<INDUSTRY TYPE="Diamonds" COLOUR="0x652382">
<PRODUCT>Diamonds</PRODUCT>
</INDUSTRY>
<INDUSTRY TYPE="Metallurgical Coal" COLOUR="0x999a8f">
<PRODUCT>Metallurgical Coal</PRODUCT>
</INDUSTRY>
</INDUSTRIES>
<LOCATIONS>
<CONTINENT TITLE="South America">
<COUNTRY TITLE="Brazil">
<HEADOFFICE>So Paulo</HEADOFFICE>
<ADDRESS>
Sau, polo, ambikaui
</ADDRESS>
<LATITUDE>-23.571157</LATITUDE>
<LONGITUDE>-46.644146</LONGITUDE>
<BUSINESSUNITS>Nickel; Iron ore and manganese</BUSINESSUNITS>
<DESCRIPTION>Anglo American has been operating in Brazil since 1973. Our core operations are involved in the production of nickel, iron ore and maganese, while our interests in the production of phosphates and niobium at Copebras and Catalo respectively have been identified for divestment. Nickel projects in the pipeline include Barro Alto.</DESCRIPTION>
<EMPLOYEES/>
<NUMBEROFBUSINESS>2</NUMBEROFBUSINESS>
<!--New project added - 12/02/2010 start -->
<PROJECT>
<TYPE>Greenfield</TYPE>
<NAME>Minas Rio expansion</NAME>
<UNITTYPE>Iron Ore and Manganese</UNITTYPE>
<RELATEDOPERATION>Greenfield</RELATEDOPERATION>
<LATITUDE>-18.92814</LATITUDE>
<LONGITUDE>-43.42562</LONGITUDE>
<STATUS>Future unapproved</STATUS>
<DESCRIPTION/>
<FULLPRODUCTIONDATE>TBD</FULLPRODUCTIONDATE>
<PRODUCTIONVOLUME>Up to 53 Mtpa iron ore pellet feed (wet basis)</PRODUCTIONVOLUME>
<!-- <ESTIMATEDCAPEX>TBD</ESTIMATEDCAPEX>-->
<FOOTNOTES>
<![CDATA[1. Capital expenditure shown on 100% basis in nominal terms. Platinum projects reflect approved capex.<br><br>2. Production volume represents 100% of average incremental or replacement production, at full production, unless otherwise stated.]]>
</FOOTNOTES>
</PROJECT>
<SDACTIVITY>
<ID>3.2.4.20</ID>
<TYPE>Society</TYPE>
<BUSINESS>Nickel</BUSINESS>
<RELATEDOPERATION/>
<HEADING>Listening - and acting - in Brazil</HEADING>
<SUBHEADING>SEAT community engagement session in Brazil</SUBHEADING>
<COPY>
local government.
</COPY>
<IMAGE>3.2.4.20.jpg</IMAGE>
<LINKCAPTION>Read more about SEAT in Brazil</LINKCAPTION>
<LINKURL>http://www.angloamerican.co.uk/aa/development/case-studies/society/society01/</LINKURL>
</SDACTIVITY>
</COUNTRY>
</CONTINENT>
</LOCATIONS>
</DATA>

Answer 1

You could just store it directly in the DOM, and serialise when desired.

Answer 2

If I were you I would just store the data in a db and then use an xmltexwriter to write it to where ever.
using (XmlTextWriter writer = new XmlTextWriter(OutputStream, Encoding.UTF8)) {
writer.Formatting = Formatting.Indented;
writer.WriteStartDocument();
writer.WriteStartElement("DATA");
writer.WriteStartElement("SDACTS");
foreach ( SDACT in SDACTs) {
writer.WriteStartElement("SDACT");
writer.WriteAttributeString("TYPE", SDACT.Type);
writer.WriteAttributeString("COLOUR", SDACT.COLOUR);
writer.WriteEndElement();
}
writer.WriteEndElement();
writer.WriteEndElement();
writer.WriteEndDocument();
}
You could also take advantage of using .nets XML serialization see http://msdn.microsoft.com/en-us/library/ms950721.aspx