vb.net XML For loop

Question

I have code for reading XML elements like this:

Dim xmlRoot As XElement = XDocument.Load("x:\books.xml").Root

For Each book As XElement In xmlRoot.<book>
     Debug.WriteLine(book.<title>.Value)
     Debug.WriteLine(book.<author>.Value)
     Debug.WriteLine(book.<year>.Value)
     Debug.WriteLine(book.<price>.Value)
Next

What I want now is, how to display only 10 elements. Now I have displayed all xml elements but I need only first 10. Tried with few For loop combinations but didn't get it work.

Thanks

what combinations have you tried?

Ahmed ilyas
– Ahmed ilyas

2014-11-23 00:02:48 +00:00
Commented Nov 23, 2014 at 0:02 — Ahmed ilyas
– Ahmed ilyas, Commented Nov 23, 2014 at 0:02

Victor Zakharov · Accepted Answer · 2014-11-23 00:05:08Z

3

Like this - notice Take(10) at the end:

For Each book As XElement In xmlRoot.<book>.Take(10)

Take is an extension method on IEnumerable, you can use it with anything, not just XElements.

answered Nov 23, 2014 at 0:05

Victor Zakharov

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1 Comment

Rhck Over a year ago

Perfect! Thank You! Didn't know about the "Take" extension. Thanks again.

Justin Ryan · Accepted Answer · 2014-11-23 00:06:58Z

1

You could add your own indicator to your existing For.

Dim i As Integer = 0 'No loops yet
For Each book As XElement In xmlRoot.<book>
    Debug.WriteLine(book.<title>.Value)
    Debug.WriteLine(book.<author>.Value)
    Debug.WriteLine(book.<year>.Value)
    Debug.WriteLine(book.<price>.Value)

    i = i + 1 'Completed one more loop
    If (i = 10) Then Exit For 'Completed 10 loops, so stop
Next

answered Nov 23, 2014 at 0:06

Justin Ryan

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