Pass Parameters to a report through code

Hi @charithalakshan49 
In addition, you can find an example of a graph extension of SOOrderEntry which implements the new DI below:

using System;
using System.Collections;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Text;
using PX.Common;
using PX.Data;
using PX.Objects.AP;
using PX.Objects.AR;
using PX.Objects.CA;
using PX.Objects.CM;
using PX.Objects.CR;
using PX.Objects.CS;
using PX.Objects.DR;
using PX.Objects.EP;
using PX.Objects.GL;
using PX.Objects.IN;
using PX.Objects.PM;
using PX.Objects.PO;
using PX.Objects.TX;
using POLine = PX.Objects.PO.POLine;
using POOrder = PX.Objects.PO.POOrder;
using System.Threading.Tasks;
using CRLocation = PX.Objects.CR.Standalone.Location;
using PX.Objects.AR.CCPaymentProcessing;
using PX.Objects.AR.CCPaymentProcessing.Common;
using PX.Objects.AR.CCPaymentProcessing.Helpers;
using PX.Objects.AR.CCPaymentProcessing.Interfaces;
using ARRegisterAlias = PX.Objects.AR.Standalone.ARRegisterAlias;
using PX.Objects.AR.MigrationMode;
using PX.Objects.Common;
using PX.Objects.Common.Discount;
using PX.Objects.Common.Extensions;
using PX.Objects.IN.Overrides.INDocumentRelease;
using PX.CS.Contracts.Interfaces;
using PX.Data.DependencyInjection;
using PX.Data.WorkflowAPI;
using PX.Objects.Extensions.PaymentTransaction;
using PX.Objects.SO.GraphExtensions.CarrierRates;
using PX.Objects.SO.GraphExtensions.SOOrderEntryExt;
using PX.Objects.SO.Attributes;
using PX.Objects.Common.Attributes;
using PX.Objects.Common.Bql;
using OrderActions = PX.Objects.SO.SOOrderEntryActionsAttribute;
using PX.Objects.SO.DAC.Projections;
using PX.Data.BQL.Fluent;
using PX.Objects;
using PX.Objects.SO;
using PX.Data.Reports;
using PX.SM;
using PX.Reports.Controls;
using PX.Reports.Data;
using System.Configuration;
using PX.Reports;
using CommonServiceLocator;


namespace PX.Objects.SO
{
    // Acuminator disable once PX1016 ExtensionDoesNotDeclareIsActiveMethod extension should be constantly active
    public class SOOrderEntry_Extension : PXGraphExtension<PX.Objects.SO.SOOrderEntry>
  {
    #region Event Handlers
        [InjectDependency]
        protected IReportLoaderService ReportLoader { get; private set; }

        [InjectDependency]
        protected internal PX.Reports.IReportDataBinder ReportDataBinder { get; private set; }

        public PXAction<SOOrder> exportReport;
        [PXUIField(DisplayName = "Export Report", Enabled =true)]
        [PXButton]
        public virtual IEnumerable ExportReport(PXAdapter adapter)
        {
            //Report Paramenters
            Dictionary<String, String> parameters = new Dictionary<String, String>();
            parameters["SOOrder.OrderType"] = Base.Document.Current.OrderType;
            parameters["SOOrder.OrderNbr"] = Base.Document.Current.OrderNbr;
            PXReportSettings settings = new PXReportSettings("SO641010");

            //Report Processing

            PX.Reports.Controls.Report report = ReportLoader.CheckIfNull(nameof(ReportLoader)).LoadReport("SO641010", null);
            ReportLoader.InitReportParameters(report, parameters, settings, false);
            PX.Reports.Data.ReportNode reportNode = ReportDataBinder.CheckIfNull(nameof(ReportDataBinder)).ProcessReportDataBinding(report);

            //Generation PDF
            byte[] data = PX.Reports.Mail.Message.GenerateReport(reportNode, RenderType.FilterPdf).First();

            PX.SM.FileInfo file = new PX.SM.FileInfo(reportNode.ExportFileName + ".pdf", null, data);

            var uploadFileMaintenance = PXGraph.CreateInstance<UploadFileMaintenance>();
            uploadFileMaintenance.SaveFile(file);
            PXNoteAttribute.AttachFile(Base.Document.Cache, Base.Document.Current, file);

            return adapter.Get();

            #endregion
    }
        #region Event Handler
        protected virtual void SOOrder_RowSelected(PXCache cache, PXRowSelectedEventArgs e, PXRowSelected InvokeBaseHandler)
        {

            InvokeBaseHandler?.Invoke(cache, e);
            exportReport.SetEnabled(true);
        }
        #endregion
    }
}