write XML with XElement

Question

Hello guys,

I want to create XML like this in a loop because I don't know how much data is in my list. I could not find an example, all samples are for pre-defined number of data. 

So, XML should look like this:

<AM>
	<HM>
		<FullName>aaa</FullName>
		<ShortName>aa</ShortName>
		<Code>1</Code>
	</HM>
	<HM>
		<FullName>aaa</FullName>
		<ShortName>aa</ShortName>
		<Code>2</Code>
	</HM>	
</AM>

There is only one AM buth a lot of HM's. I store them in a list. 

I have tried with Exlement.Add but I get an non-closed element like <HM\> and not </HM>.

Please help.

Answer 1

Try like this:

XElement elem = new XElement("AM");
int i = 1;
while (i < 5)
{
    elem.Add(new XElement("HM",
        new XElement("FullName", "aaa"),
        new XElement("ShortName", "aa"),
        new XElement("Code", i)
        ));
    i++;
}

Answer 2

Hi crtlSpace;

Here is sample code on how can achieve the XML document you are looking for. The sample code has a List of objects of type AMInfo which contains the data to build the XML document.

// Test Data
List<AMInfo> amInfo = new List<AMInfo>() {
    new AMInfo() { FullName = "aaa", ShortName = "aa", Code = 1},
    new AMInfo() { FullName = "aaa", ShortName = "aa", Code = 2},
    new AMInfo() { FullName = "bbb", ShortName = "bb", Code = 3},
    new AMInfo() { FullName = "ccc", ShortName = "cc", Code = 4}        
    };
    
// Query to build XML document    
var amXML = new XElement("AM",
    from h in amInfo
    select new XElement("HM",
        new XElement ("FullName", h.FullName),
            new XElement ("ShortName", h.ShortName),
            new XElement ("Code", h.Code)));

            
amXML.Save("C:/Working Directory/Am.xml");    


// Test data class
public class AMInfo
{
    public string FullName { get; set; }
    public string ShortName { get; set; }
    public int Code { get; set; }
}

And the results of executing the above code.

// The document saved to disk
<?xml version="1.0" encoding="utf-8"?>
<AM>
  <HM>
    <FullName>aaa</FullName>
    <ShortName>aa</ShortName>
    <Code>1</Code>
  </HM>
  <HM>
    <FullName>aaa</FullName>
    <ShortName>aa</ShortName>
    <Code>2</Code>
  </HM>
  <HM>
    <FullName>bbb</FullName>
    <ShortName>bb</ShortName>
    <Code>3</Code>
  </HM>
  <HM>
    <FullName>ccc</FullName>
    <ShortName>cc</ShortName>
    <Code>4</Code>
  </HM>
</AM>

---

Fernando (MCSD)

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