I have a generated xml (dbml) document that I have to add new elements to..  here's an amended snippet..

<?xml version="1.0" encoding="utf-8"?>
<Database Name="mydb" EntityNamespace="MyEntity" ContextNamespace="MyEntity" Class="MyClass" xmlns="http://schemas.microsoft.com/linqtosql/dbml/2007">
 <Table Name="dbo.MYTABLE" Member="MYTABLE">
   <Type Name="MYTABLE">
     <Column Name="keycol" Member="keycol" Type="System.String" DbType="VarChar(10) NOT NULL" IsPrimaryKey="true" CanBeNull="false" />
     <Column Name="fkcol" Member="fkcol" Type="System.String" DbType="VarChar(10) NOT NULL" CanBeNull="false" />
     <Association Name="myfkid" Member="FKTBL" ThisKey="fkcol" OtherKey="fkcol" Type="FKTBL" IsForeignKey="true" DeleteOnNull="true" />
   </Type>
 </Table>

I can add a new element ok using the following VB code..

'xDoc is my loaded XMLDocument

xElement = xDOC.CreateElement("Association")
AddAttribute(xElement, "Name", FK.rolename)
'add all other attribs..
ParentNode.AppendChild(xElement)

Private Sub AddAttribute(ByRef xElement As XmlElement, ByVal Key As String, ByVal Value As String)
   Dim NewAttr As XmlAttribute
   NewAttr = xDOC.CreateAttribute(Key)
   NewAttr.Value = Value
   xElement.Attributes.Append(NewAttr)
End Sub

Now, this all works fine except that when I export the document, it adds an extra attribute to the added element of xmlns=""      e.g.

<Association Name="mynewfkid" Member="mynewtbl" ThisKey="mykeycol" OtherKey="otherkeycol" Type="mynewtbl" DeleteRule="CASCADE" xmlns="" />

How do I add the element so that the serializer doesn't add the extra namespace attribute ?