I am using one of the sample XML for FusionCharts. If I set the Xml content as a string variable or read it from a text file which has the xml content the FusionChart works fine.
But if I read the same text file in XmlDocument or Dataset/XmlTextReader, geneate XML from that object and then set the XML to the chart it does not work. I think the problem is due to extra line breaks (formatted Xml) added by Dataset or XmlDocument.
//Works
string xmlDataYear = File.ReadAllText(MapPath("../FusionCharts/WeeklyAttendance.txt"));
//Does NOT Work
DataSet ds = new DataSet();
ds.ReadXml(MapPath("../FusionCharts/WeeklyAttendance.txt"));
string xmlDataYear = ds.GetXml();