SelectSingeNode("xpath")...how to test if null?

[Kathy Burke]

Hi, I'm using

Dim xDoc as XmlDocument
Dim xElem As xmlElement = xDoc("xpath")

I then assign a variable to a value from the result node:
Dim r As String = xElem.Attributes.GetNamedItem("name").Value

This works fine unless there is no node returned, then I get an "object
reference not set" error.

How do you test for an empty node return?

Thanks again for all the help.

Kathy

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[S. Justin Gengo]

Kathy,

Try:

Dim r As String
If Not xElem.Attributes.GetNamedItem("name") Is Nothing Then
Dim r As String = xElem.Attributes.GetNamedItem("name").Value
End If
--
S. Justin Gengo, MCP
Web Developer

Free code library at:
[url]www.aboutfortunate.com[/url]

"Out of chaos comes order."
Nietzche
"Kathy Burke" <kathyburke40@attbi.com> wrote in message
news:eYud88UUDHA.2220@TK2MSFTNGP11.phx.gbl...

> Hi, I'm using
>
> Dim xDoc as XmlDocument
> Dim xElem As xmlElement = xDoc("xpath")
>
> I then assign a variable to a value from the result node:
> Dim r As String = xElem.Attributes.GetNamedItem("name").Value
>
> This works fine unless there is no node returned, then I get an "object
> reference not set" error.
>
> How do you test for an empty node return?
>
> Thanks again for all the help.
>
> Kathy
>
> *** Sent via Developersdex [url]http://www.developersdex.com[/url] ***
> Don't just participate in USENET...get rewarded for it!

[Kathy Burke]

Thanks, Justin. That did the trick of course. I wasn't using the
"nothing"...

thanks.

Kathy

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