Question

This is my two xml document.

This xml is stored in paraouterXml string.

<w:tbl>
 <w:tblPr>
 </w:tblPr>
 <w:tblGrid>
 </w:tblGrid>
</w:tbl>

This xml is stored in tblMetaInfo string.

<root>
 <w:tblPr>
  <w:tblStyle w:val="TableGrid" /> 
  <w:tblW w:w="0" w:type="auto" /> 
  <w:tblLook w:val="04A0" /> 
  </w:tblPr>
 <w:tblGrid>
  <w:gridCol w:w="1947" /> 
  <w:gridCol w:w="1947" /> 
  </w:tblGrid>
</root>

So,here i want to replace paraouterXml’s <w:tblPr>,<w:tblGrid> with tblMetaInfo’s <w:tblPr>,<w:tblGrid> elements.

This is c# code…

XmlDocument xDoc = new XmlDocument();
xDoc.LoadXml(table.OuterXml);
XmlNode newNode = xDoc.DocumentElement;

XmlNodeList tblPrNode = xDoc.GetElementsByTagName("w:tblPr");
tblPrNode[0].RemoveAll();
XmlNodeList tblGridNode = xDoc.GetElementsByTagName("w:tblGrid");
tblGridNode[0].RemoveAll();

XmlDocument xDoc1 = new XmlDocument();
xDoc1.LoadXml(tblMetaInfo);
XmlNode newNode1 = xDoc1.DocumentElement;
XmlNodeList tblPrNode1 = xDoc1.GetElementsByTagName("w:tblPr");
XmlNodeList tblGridNode1 = xDoc1.GetElementsByTagName("w:tblGrid");

tblPrNode[0].ReplaceChild(tblPrNode1[0], tblPrNode[0]);
tblGridNode[0].ReplaceChild(tblGridNode1[0], tblGridNode[0]);

But it throwing some error…

Please guide me to get out of this issue…

Answer 1

ArgumentException: The newChild was created from a different document than the one that created this node.

public XmlNode ReplaceChild(XmlNode newChild, XmlNode oldChild):

If the newChild was created from another document, you can use XmlDocument.ImportNode to import the node to the current document. The imported node can then be passed to the ReplaceChild method.