Appends the supplied string to the existing string data.
oXMLDOMCharacterData.appendData(data);
The following script example creates an IXMLDOMComment object and uses the appendData method to add text to the string.
var xmlDoc = new ActiveXObject("Msxml2.DOMDocument.5.0");
var comment;
xmlDoc.async = false;
xmlDoc.load("books.xml");
if (xmlDoc.parseError.errorCode <> 0) {
   var myErr = xmlDoc.parseError;
   alert("You have error " + myErr.reason);
} else {
   comment = xmlDoc.createComment("Hello World!");
   comment.appendData("Ellohay Orldway!");
   alert(comment.data);
}
oXMLDOMCharacterData.appendData(data)
The following Microsoft® Visual Basic® example creates an IXMLDOMComment object and uses the appendData method to add text to the string.
Dim xmlDoc As New Msxml2.DOMDocument50
Dim comment As IXMLDOMComment
xmlDoc.async = False
xmlDoc.Load ("books.xml")
If (xmlDoc.parseError.errorCode <> 0) Then
   Dim myErr
   Set myErr = xmlDoc.parseError
   MsgBox("You have error " & myErr.reason)
Else
   Set comment = xmlDoc.createComment("Hello World!")
   comment.appendData ("Ellohay Orldway!")
   MsgBox (comment.Data)
End If
HRESULT appendData(
    BSTR data);
The length property is also updated by this operation.
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 in the upper-left corner of the page.
length Property (IXMLDOMCharacterData)
Applies to: IXMLDOMCDATASection | IXMLDOMCharacterData | IXMLDOMComment | IXMLDOMText