Report generated with reportview, directly in pdf

Question

I have a form, and in this form, I have a button print out which opens a reportviwer report made with a dataset. What I need to do with this report is automate it, instead of me clicking the print button, it open the reportviwer screen later and have to save in PDF to then open the pdf.

I would like to know if it is possible and if yes how to shorten this whole way and click on the print button, and it already open the report of reportview already in pdf, triggering the pdf program of the usurer’s machine to view, that is when you click the print button already view in pdf.

Follow the code on the print button that calls reportviwer.

public partial class frmPedioVenda : Form
    {

        public frmPedioVenda()
        {
            InitializeComponent();
        }
        private void frmPedioVenda_Load(object sender, EventArgs e)
        {

        }
        private void bntPesquisa_Click(object sender, EventArgs e)
        {
            this.PedidoVendaPHTableAdapter.Fill_ph(this.PedidoVendaDataSet1.PedidoVendaPH, txtPedido.Text);
            this.reportViewer1.RefreshReport();
        } 

Here I already create the report and visualize:

private void bntPesquisa_Click(object sender, EventArgs e)
{
    this.PedidoVendaPHTableAdapter.Fill_ph(this.PedidoVendaDataSet1.PedidoVendaPH, txtPedido.Text);
    this.reportViewer1.RefreshReport();
} 

Answer 1

I will help you with the code I use to generate the PDF file from ReportViewer

Warning[] warnings;
string[] streamids;
string mimeType;
string encoding;
string filenameExtension;

byte[] bytes = this.reportViewer1.LocalReport.Render(
    "PDF", null, out mimeType, out encoding, out filenameExtension,
    out streamids, out warnings);

using (FileStream fs = new FileStream("output.pdf", FileMode.Create))
{
    fs.Write(bytes, 0, bytes.Length);
}

System.Diagnostics.Process.Start("output.pdf");

Answer 2

Yes, this is possible. In the method triggered by the print button, create a Datatable.

DataTable dt = new DataTable();

After recovering the data and filling the Datatable, load the data in Reportviewer.

ReportViewer1.LocalReport.DataSources.Add(new ReportDataSource("NOME_DATASET", dt));
ReportViewer1.DataBind();

Finally, return the data so that the mimetype be the type application/pdf, according to the code below.

Warning[] warn = null;
string[] streamids = null;
string mimeType = "application/pdf";
string encoding = string.Empty;
string extension = string.Empty;
byte[] byteViewer = null;
string deviceInfo = null;

byteViewer = ReportViewer1.LocalReport.Render("pdf", deviceInfo, out mimeType, out encoding, out extension, out streamids, out warn);
Response.Buffer = true;
Response.Clear();
Response.ContentType = "application/pdf";
Response.AddHeader("content-disposition", "inline; filename=NOME_DO_ARQUIVO.pdf");
Response.BinaryWrite(byteViewer);

OBS.: To use the class Warning, include the namespace Microsoft.Reporting.Webforms.

With this return, the PDF file will automatically open in the user’s browser.