Write Excel file from rdl/rdlc file in Windows application - c++

Question

I have rdl files made by Report Builder 3.0. I need to use them in my Windows application written in C++ in way so that I am able to set SQL Server connection parameters and Report location at runtime.
Is this possible and how?
Google told me that I need to convert rdl to rdlc file, but even then I couldn't find a way of setting these parameters and calling rdlc file from C++.

Answer 1

You can use ReportViewer and use RDL or RDLC files but RDL could have some limitations since it doesn't include necessary information to create data-binding code.
RDL files do not contain some information that the design-time of the
ReportViewer control depends on for automatically generating
data-binding code. By manually binding data, RDL files can be used in
the ReportViewer control.
You can set the parameters from ReportViewer, check this documentation and the below code example in C#:
private void SetReportParameters() {
// Set Processing Mode
reportViewer1.ProcessingMode = ProcessingMode.Remote;
// Set report server and report path
reportViewer1.ServerReport.ReportServerUrl = new
Uri("http://<ServerName>/reportserver");
reportViewer1.ServerReport.ReportPath =
"/AdventureWorks Sample Reports/Employee Sales Summary";
List<ReportParameter> paramList = new List<ReportParameter>();
paramList.Add(new ReportParameter("EmpID", "288", false));
paramList.Add(new ReportParameter("ReportMonth", "12", false));
paramList.Add(new ReportParameter("ReportYear", "2003", false));
this.reportViewer1.ServerReport.SetParameters(paramList);
// Process and render the report
reportViewer1.RefreshReport();
}
This is an example of ReportViewer usage to generate Excel files:
protected void Button1_Click(object sender, EventArgs e)
{
Warning[] warnings;
string[] streamids;
string mimeType;
string encoding;
string extension;
byte[] bytes = ReportViewer1.LocalReport.Render(
"Excel", null, out mimeType, out encoding,
out extension,
out streamids, out warnings);
FileStream fs = new FileStream(#"c:\output.xls",
FileMode.Create);
fs.Write(bytes, 0, bytes.Length);
fs.Close();
Label1.Text = "Report exported to output.xls";
}
Let me know if this can help you.