public static XmlDocument Apply(DataTemplate mainTemplate, DataTemplate freshTemplate, IXPathNavigable source)
{
if (freshTemplate == null)
return mainTemplate.Apply(source);
StringBuilder resultBuilder = new StringBuilder();
using (XmlWriter writer = XmlWriter.Create(resultBuilder))
{
writer.WriteStartElement("Table");
List<object> mainNodesList = new List<object>();
foreach (IDataRow row in mainTemplate.GetRows(source))
foreach (IDataColumn column in mainTemplate.Columns)
{
mainNodesList.Add(column.GetValue(row));
}
foreach (IDataRow row in freshTemplate.GetRows(source))
{
writer.WriteStartElement("Row");
foreach (IDataColumn column in freshTemplate.Columns)
{
object value = column.GetValue(row);
writer.WriteStartElement("Cell");
if (value != null && !mainNodesList.Contains(value))
writer.WriteAttributeString("new", "true");
WriteCellValue(writer, value);
writer.WriteEndElement();
}
writer.WriteEndElement();
}
}
return XmlHlp2.XmlDocFromString(resultBuilder.ToString());
}