saving changes to XML doc

Ok there's the code. I get an error, Saving Token in state Epilog would result in an invalid XML document. WTF? haha.

what i do is read the document, take the last row, read the id, increment it and use it for the id of a new row, build the new row, add it, commit the changes to the data table and data set, then write the xml back to the file.

help.



DataSet myDs;
DataTable myDt;
DataRow myDr;
int intNxtIndex;

try
{
myDs = new DataSet();
myDs.ReadXml(Server.MapPath("../dna/data/dna.xml"));

//Table1.Visible = false;
Table2.Visible = false;

myDt = myDs.Tables["store"];
myDr = myDt.Rows[myDt.Rows.Count-1];
intNxtIndex = System.Convert.ToInt16(myDr["id"]) + 1;
myDr = null;

myDr = myDt.NewRow();

myDr["id"] = intNxtIndex;
myDr["storeDomain"] = Request.Form["txtDomain"];
myDr["storeName"] = Request.Form["txtStoreName"];
myDr["mstrEmail"] = Request.Form["txtMstrEmail"];
myDr["dbAddress"] = Request.Form["txtDbAddr"];
myDr["dbType"] = Request.Form["txtDbType"];
myDr["dbUser"] = Request.Form["txtDbUser"];
myDr["dbPass"] = Request.Form["txtDbPass"];
myDr["dbName"] = Request.Form["txtDbName"];
myDr["SSL"] = Request.Form["SSL"];

myDt.Rows.Add(myDr);
myDt.AcceptChanges();
myDs.AcceptChanges();

myDs.WriteXml(Server.MapPath("../dna/data/dna.xml"));

Response.Write("Document Saved.");

}