XmlNode Attribute

Question

I need your help. I am new to xml and need to get its attribute.

I have a mailbox(XmlNode) that is represented by the following InnerXml

<Mailbox Id="1" Name="[email protected]" />

I need to access the Id attribute using this piece of code

mailbox.Attribute["Id"].Value

but it throws null reference exception. I haven't found any solution, as I can't make any changes to the

....mailbox.Attribute["Id"].Value .....part of code

can anyone help me?

The code you pasted represents the InnerXml or OuterXml? If it represents InnerXml, can you show what is in the OuterXml? — Paweł Bejger
– Paweł Bejger, Commented Jan 25, 2014 at 16:53
(Withdrew my comment about case sensitivity on Id -- the font was misleading me; it looks like capital I was used.. In that case, I think Wiktor's question is on target: whatever mailbox represents, it isn't the <Mailbox> element shown above. (At least it probably isn't a namespace issue; attributes don't take default namepaces.) — keshlam
– keshlam, Commented Jan 25, 2014 at 18:57

Prajul G · Accepted Answer · 2014-01-26 06:31:29Z

1

Try using something like this piece of code

XmlReader reader = XmlReader.Create("Your_XML_Path");
string id;
  while (reader.Read())
        {
            if (reader.NodeType == XmlNodeType.Element)
            {
                if (reader.Name == "Mailbox")
                {
                    id = reader.GetAttribute(0);
                }
            }
        }

Try this and let me know if u have any doubts or if this code doesnt work for you.

answered Jan 26, 2014 at 6:31

Prajul G

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user3235566 · Accepted Answer · 2014-01-27 10:28:29Z

0

Yeah, so I checked the OuterXml(actually didn't know there's a difference)

<Mailboxes><Mailbox Id="1" Name="[email protected]" />...

that was the reason why it didn't work. so now using

mailbox.SelectSingleNode("//Mailboxes/Mailbox").Attributes["Id"].Value

everything works correctly.

answered Jan 27, 2014 at 10:28

user3235566

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