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Easy(?) XML question - retreiving attributes

From: "Bill Grunnah" <nospam@--------.--->
To: NULL
Date: 6/1/2004 6:48:00 PM
Let's say I have XML document like this:

<records>
    <adjustments>
        <pix num="1159974" seq="10" type="300" code="01"
trans_date="2004-05-29 22:27:16-05">
            <item item_num="001-109" color="WHT" size="1120">1</item>
            <reason code="SP">misc</reason>
        <comment ref3="8640105" />
        </pix>
        <pix num="1148465" seq="10" type="300" code="01"
trans_date="2004-05-29 19:25:23-05">
            <item item_num="001-1296" color="BLK" size="1121">2</item>
            <reason code="SP">misc</reason>
            <comment ref3="9160134" />
        </pix>
    </adjustments>
</records>

I can quickly read through it and get the values for the num field (in
VB.net) via:

    Dim PixNode As XPathNodeIterator
    PixNode = xNav.Select("//records/adjustments/pix")
    do while PixNode.MoveNext()
        num = PixNode.Current.GetAttribute("num", "")
    loop

While doing so, is there an way efficient way to also retrieve the values
for the item and reason elements, as well as the values of all the
attributes such as color & size? I know once I have num I can access them
via code like:

    reason_code = GetNodeString("//records/adjustments/pix[@num = '" & num &
"']/reason/@code")
    reason_text = GetNodeString("//records/adjustments/pix[@num = '" & num &
"']/reason")

But this is slow and inefficient; on a large file (20k records) we're
talking processing only 1 record/second. Anyone have any suggestions?

Thanks,
Bill Grunnah
TekSolutions
www.grunnah.com




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