I am using Nevron Open Vision for .NET Enterprise 2017.1

I have a requirement to merge data from multiple tables in a dataset (c# DataSet class).
Additionally to merge all rows from a table in the dataset.
Does RichTextView support this type of merging/

If not can i write a custom mailmerge class derived from NMailMerge and NDataSource?
Or
Can i override or add custom types to the Insert Field dialog , and process these fields myself?

Thanks in advance
Mike Willis

Hey,
Attempting to do as you suggest "by creating a class that inherits NMailMergeDataSource, overriding its GetDataTablecreate a class that inherits from NMailMergeDataSource."
However i get these compiler errors
ErrorCS0115'DocumentMergeDataSource.Xwr()': no suitable method found to override
ErrorCS0115'DocumentMergeDataSource.Wwr()': no suitable method found to override
ErrorCS0534'DocumentMergeDataSource' does not implement inherited abstract member 'NMailMergeDataSource.Xwr()'
ErrorCS0534'DocumentMergeDataSource' does not implement inherited abstract member 'NMailMergeDataSource.Wwr()'

this is the code
"public class MyMailMergeDataSource : NMailMergeDataSource
  {
   public override NDataTable GetDataTable()
   {
    Business.DocumentDataSet ds = new Business.DocumentDataSet();
    return ds.DocumentToNDataTable();

   }

   internal override string Wwr()
   {
    throw new NotImplementedException();
   }

   internal override string Xwr()
   {
    throw new NotImplementedException();
   }
  }"