Working with Empty Elements..Help!

[AlexTekTip]

How do I check if an element of an XML document is empty?

I have the following code:

var vSubA = vAgsXml.document.getElementsByTagName("_f8");
vSubA = vSubA[0].firstChild.data (This line errors out when element _f8 is empty I guess because you cant assign something that does not exist).

Is there a way to check if the node is valid so I know whether to assign or not?

The below shows the XML document when the _f8 element is empty:

<?xml version="1.0" encoding="ISO-8859-1" ?>
- <XZQGL.1>
- <ZQGL.1>
<_PDL>DEV</_PDL>
<_TKN>ZQGL.1</_TKN>
<_OUT>XML</_OUT>
<_TDS>Ignore</_TDS>
<_EVT>CHG</_EVT>
<_f0>ZQGL.1</_f0>
<_f1>I</_f1>
<_f2>3800</_f2>
<_f3>STC022</_f3>
<_f4>00500</_f4>
<_f5>B</_f5>
<_f6>2174319</_f6>
<_f7>512215</_f7>
<_f8 />
<FldNbr>_f0</FldNbr>
<MsgNbr>000</MsgNbr>
<Message>Inquiry Complete</Message>
</ZQGL.1>
</XZQGL.1>

 

[chessbot]

I'm not good at javascript xml accessing, but maybe

var vSubA = vAgsXml.document.getElementsByTagName("_f8");
vSubA = (vSubA[0].data != "") ? vSubA[0].firstChild.data : "";

You can also try forum426.

--Chessbot

"See the TURTLE of enormous girth!"
-- Stephen King, The Dark Tower series