.NET Core第33天_AspNetCore.Reporting的使用再次擁抱RDLC做LocalReport報表列印

using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.Hosting;
using Microsoft.Extensions.Logging;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Threading.Tasks;

namespace NetCoreRDLC
{
    public class Program
    {
        public static void Main(string[] args)
        {
            CreateHostBuilder(args).Build().Run();
        }

        public static IHostBuilder CreateHostBuilder(string[] args) =>
            Host.CreateDefaultBuilder(args)
                .ConfigureWebHostDefaults(webBuilder =>
                {
                    webBuilder.UseContentRoot(Directory.GetCurrentDirectory());
                    webBuilder.UseWebRoot("wwwroot");
                    webBuilder.UseStartup<Startup>();
                });
    }
}

再控制器中額外增加ReportController.cs

並新增Print的Action程式

將webHostEnvironment透過建構子注入進來

using AspNetCore.Reporting;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Mvc;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace NetCoreRDLC.Controllers
{
    public class ReportController : Controller
    {
        private readonly IWebHostEnvironment webHostEnvironment;

        public ReportController(IWebHostEnvironment webHostEnvironment)
        {
            this.webHostEnvironment = webHostEnvironment;
            Encoding.RegisterProvider(CodePagesEncodingProvider.Instance);
        }

        public IActionResult Index()
        {
            return View();
        }

        public IActionResult Print()
        {
            string mim_type = "";
            int extension = 1;
            var path = $"{this.webHostEnvironment.WebRootPath}\\Report\\Report1.rdlc";
            Dictionary<string,string> parms = new Dictionary<string, string>();
            parms.Add("rp1", "Welcome .net core rdlc");
            LocalReport localReport = new LocalReport(path);
            var result = localReport.Execute(RenderType.Pdf, extension, parms, mim_type);
            return File(result.MainStream, "application/pdf");
        }
    }
}

這樣子就可以實踐報表pdf的頁面列印之前的呈現

那示範完參數化RDLC結果的列印後

更常見的就是從DB撈取的最終結果集要弄成表格形式報表列印出來

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第25個冬天

.NET Core第33天_AspNetCore.Reporting的使用再次擁抱RDLC做LocalReport報表列印

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