ReportViewer.WriteMhtTo(HttpResponse, XtraReport) Method
Writes the MHT version of a report to the specified HTTP response. An XtraReport object should be passed to this method as a parameter.
A HttpResponse object specifying the HTTP response to which the file should be written.
An XtraReport object to be represented as an MHT file.
The stream generated by this method contains the MHT representation of the report, and will be written to the specified HttpResponse object.