lux/TestDevExpress/Components/Pages/ReportViewer.razor.cs

using DevExpress.Blazor.Reporting;
using DevExpress.DataAccess;
using DevExpress.DataAccess.Json;
using DevExpress.XtraReports;
using DevExpress.XtraReports.UI;
using Microsoft.AspNetCore.Components;
using Microsoft.AspNetCore.WebUtilities;
using TestDevExpress.Components.Reports;

namespace TestDevExpress.Components.Pages
{
    public partial class ReportViewer
    {
        #region Protected Methods

        protected override void OnInitialized()
        {
            // assegno il parametro basePath da conf
            string basePath = _config.GetValue<string>("ServerConf:ImageBaseUrl") ?? "https://iis01.egalware.com/Lux/srv/api/window/svgfile/";
            currReport.Parameters["pBasePath"].Value = basePath;

            //cerco id da URL x offerta da mostrare
            var uri = NavManager.ToAbsoluteUri(NavManager.Uri);
            if (QueryHelpers.ParseQuery(uri.Query).TryGetValue("OfferId", out var offerId))
            {
                if (currReport.Parameters["pOfferId"] != null)
                {
                    currReport.Parameters["pOfferId"].Value = offerId;

                    // 2. Cerca il JsonDataSource e aggiorna l'URL manualmente
                    var jsonDataSource = currReport.DataSource as JsonDataSource;
                    if (jsonDataSource != null)
                    {
                        // Costruiamo l'URL finale
                        string urlCompleto = $"https://iis01.egalware.com/Lux/srv/api/report/offert/{offerId}";

                        // Assegniamo l'URL "pulito" al data source del report
                        jsonDataSource.JsonSource = new UriJsonSource(new Uri(urlCompleto));

                        // IMPORTANTE: Dirottiamo la connessione perché non usi quella di appsettings.json
                        jsonDataSource.ConnectionName = null;
                    }

                    currReport.RequestParameters = false;
                }
            }
        }

        #endregion Protected Methods

        #region Private Fields

        private OfferReport currReport = new();
        private DxReportViewer? reportViewer;

        #endregion Private Fields

        #region Private Properties

        [Inject]
        private IConfiguration _config { get; set; } = null!;

        [Inject]
        private NavigationManager NavManager { get; set; } = null!;

        #endregion Private Properties
    }
}