Create XML Node with attribute xsi:type

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Hi,

I am trying to create an XML document . With in there is a element called Column with property xsi:type="SQLINT". But eventhough i am describing the attribute its only creating type.Code i applied is below

C#

attribute = xmlDoc.CreateAttribute("xsi:type");
attribute.Value = "CharTerm";
userNode.Attributes.Append(attribute);

Posted 31-Oct-14 1:12am

Arjun Menon U.K

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Tomas Takac · Answer 1 · 2014-11-01T00:54:00

You need to specify the namespace when you create the attribute:

C#

attribute = doc.CreateAttribute("xsi:type", "http://www.w3.org/2001/XMLSchema-instance");

However this will add the xmlns declaration to the child node:

XML

<doc>
  <user xsi:type="CharTerm" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" />
</doc>

If you want it to be on the root element you need to declare it explicitly:

C#

string xsi = "http://www.w3.org/2001/XMLSchema-instance";
var xmlns = doc.CreateAttribute("xmlns:xsi", "http://www.w3.org/2000/xmlns/");
xmlns.Value = xsi;
doc.DocumentElement.Attributes.Append(xmlns);

attribute = doc.CreateAttribute("xsi:type", xsi);

Then you get this:

XML

<doc xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <user xsi:type="CharTerm" />
</doc>