Create XML with XDocument with a variable number of XElements using for loop

Question

I need to add a variable number of XElements to my XML document based on the value of e(which is different each time). I think I need to do something similar to what I have below but the below code gives me 6 errors. These are:

Only assignment, call, increment, decrement, and new object expressions can be used as a statement x 2
Invalid expression term 'for'/')'/')'

; expected

int e = 3;

doc.Root.Add(new XElement(ns + "LineItemList",

for(int i = 0; i <= e; i++)
{
    new XElement("ItemNumber", i.ToString());
}

));

What am I doing wrong?

To put my question another way, my understanding is that to have my LineItem elements inside my LineItemListelement, I need to put my LineItem's inside the declaration of LineItemList.

If somebody could tell me how to explicitly open and close elements, instead of them being opened and closed implicitly this would help a lot.

Uladzimir Kazakevich · Accepted Answer · 2011-10-30 18:52:38Z

6

Try this one:

int e = 3;
XDocument doc = new XDocument(
          new XElement(ns + "LineItemList",
               Enumerable.Range(0, e).Select(i => new XElement("ItemNumber", i))
          ));

answered Oct 30, 2011 at 18:52

Uladzimir Kazakevich

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Comments

Erik Philips · Accepted Answer · 2011-10-30 18:45:39Z

2

I think you are looking for:

int e = 3;
XElement lineElement = new XElement(ns + "LineItemList");
doc.Root.Add(lineElement);
for(int i = 0; i <= e; i++) 
{ 
  XElement itemElement = new XElement("ItemNumber", i.ToString());
  lineElement.Add(itemElement)
}

answered Oct 30, 2011 at 18:45

Erik Philips

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Comments

neeKo · Accepted Answer · 2011-10-30 18:43:44Z

0

You cannot use a for loop inside a method call.

Maybe you want to do something like this:

for(int i = 0; i <= e; i++) { 
    XElement element = new XElement("ItemNumber", i.ToString()); 
    doc.Root.Add(element);
}

I didn't test this code.

answered Oct 30, 2011 at 18:43

neeKo

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