WinForms Viewer

dotnet add package Majorsilence.Reporting.RdlViewer

Embed Report Viewer

This is the most simple example of using the RdlViewer control. It loads a report with no parameters. Call RdlEngineConfig.RdlEngineConfigInit() once at application startup, then use SetSourceFile and Rebuild (both async) to load the report.

using System.Windows.Forms;
using Majorsilence.Reporting.Rdl;
using Majorsilence.Reporting.RdlViewer;

class ReportForm : Form
{
    private readonly RdlViewer _rdlView;

    public ReportForm()
    {
        Height = 600;
        Width = 800;
        _rdlView = new RdlViewer();
        _rdlView.Dock = DockStyle.Fill;
        Controls.Add(_rdlView);
        Load += async (s, e) => await LoadReportAsync();
    }

    private async Task LoadReportAsync()
    {
        await _rdlView.SetSourceFile(new Uri(@"\path\to\your\report.rdl"));
        await _rdlView.Rebuild();
    }
}

class Program
{
    [STAThread]
    static void Main()
    {
        // One time per app instance
        RdlEngineConfig.RdlEngineConfigInit();

        Application.EnableVisualStyles();
        Application.SetCompatibleTextRenderingDefault(false);
        Application.Run(new ReportForm());
    }
}

Embed Report Viewer, Report has Parameters

This example loads a report with parameters. Set Parameters before calling Rebuild.

using System.Windows.Forms;
using Majorsilence.Reporting.Rdl;
using Majorsilence.Reporting.RdlViewer;

class ReportForm : Form
{
    private readonly RdlViewer _rdlView;

    public ReportForm()
    {
        Height = 600;
        Width = 800;
        _rdlView = new RdlViewer();
        _rdlView.Dock = DockStyle.Fill;
        Controls.Add(_rdlView);
        Load += async (s, e) => await LoadReportAsync();
    }

    private async Task LoadReportAsync()
    {
        await _rdlView.SetSourceFile(new Uri(@"\path\to\your\report_with_parameters.rdl"));
        _rdlView.Parameters += string.Format("&TestParam1={0}&TestParam2={1}", "Value 1", "Value 2");
        await _rdlView.Rebuild();
    }
}

class Program
{
    [STAThread]
    static void Main()
    {
        // One time per app instance
        RdlEngineConfig.RdlEngineConfigInit();

        Application.EnableVisualStyles();
        Application.SetCompatibleTextRenderingDefault(false);
        Application.Run(new ReportForm());
    }
}

---

Version 4 (Legacy — .NET Framework / net48)

using System.Windows.Forms;
using fyiReporting.RDL;
using fyiReporting.RdlViewer;

class Program
{
    [STAThread]
    static void Main()
    {
        System.Windows.Forms.Form frm = new System.Windows.Forms.Form();
        frm.Height = 600;
        frm.Width = 800;

        fyiReporting.RdlViewer.RdlViewer rdlView = new fyiReporting.RdlViewer.RdlViewer();
        rdlView.SourceFile = new Uri(@"\path\to\your\report.rdl");
        rdlView.Rebuild();

        rdlView.Dock = DockStyle.Fill;
        frm.Controls.Add(rdlView);

        Application.Run(frm);
    }
}