Print SSRS Report from Code (asp.net) - asp.net

Question

I have found good information on how to automatically download a file to the client advertised as a solution of how to print using code
(https://forums.asp.net/t/1233841.aspx?How+do+I+print+from+Reporting+Services+AUTOMATICALLY+in+VB+Net+web+app+)
but what I need to do is have the code print the document without the user interacting.
From what I have found it appears this can not be done as one might casually think. ReportViewer for example does not have a 'print' method.
The only two solutions appears to be to use ProcessStart (which then means saving the file to the file system before printing which I dont want to do)
or maybe (will be researching this today) create a subscription using code and then delete it later.

Answer 1

You are not able to print a report directly from your asp.net page. The reason for this is security. If it allowed you to send a file through the network and onto the clients computer, and then search the computer for a printer, this could cause major security issues. The report viewer does have a print icon, but this disappears when you deploy the project and run the page remotely. I have faced the same issue in the past and found it best to just export the report to say PDF and allow the user to Download it. I have used the below code to accomplish this task in the past:
Private Sub CreatePDFMatrix(fileName As String)
' ReportViewer1.LocalReport.DataSources.Clear()
Dim adapter As New ReportDataSetTableAdapters.vwPrintTagsTableAdapter
Dim table As New ReportDataSet.vwPrintTagsDataTable
Dim month = MonthName(Date.Today.Month)
Dim year = Date.Today.Year
Dim p(1) As ReportParameter
Dim warnings() As Warning
Dim streamIds As String()
Dim mimeType As String = String.Empty
Dim encoding As String = String.Empty
Dim extension As String = String.Empty
Dim adpt2 As New ReportDataSetTableAdapters.vwPrintTagsTableAdapter
adapter.FillForMainReport(table, DropDownList1.SelectedValue, g_Company, g_Division)
Me.ReportViewer1.LocalReport.DataSources.Add(New ReportDataSource("DataSet1", CType(table, DataTable))) 'Add(New ReportDataSource("ReportingData", CType(table, DataTable)))
Me.ReportViewer1.DataBind()
Dim viewer = ReportViewer1
viewer.ProcessingMode = ProcessingMode.Local
viewer.LocalReport.ReportPath = "Report1.rdlc"
p(0) = New ReportParameter("MonthYear", month & "-" & year)
Dim check = DropDownList1.SelectedValue
ReportViewer1.LocalReport.SetParameters(p(0))
p(1) = New ReportParameter("Location", DropDownList1.SelectedValue)
ReportViewer1.LocalReport.SetParameters(p(1))
Try
Dim bytes As Byte() = viewer.LocalReport.Render("PDF", Nothing, mimeType, encoding, ".pdf", streamIds, warnings)
Response.Buffer = True
Response.Clear()
Response.ContentType = mimeType
Response.AddHeader("content-disposition", Convert.ToString((Convert.ToString("attachment; filename=") & fileName) + ".") & extension)
Response.BinaryWrite(bytes)
' create the file
Response.Flush()
Catch ex As Exception
Debug.Print(ex.ToString)
End Try
End Sub