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Asp.net 自帶報表的使用詳解

更新時間：2013年10月11日 15:22:00 作者：

最近公司的功能需要使用報表，用的是微軟自帶的報表，談一談我們的做法，希望可以給想學(xué)習(xí)的人一些指導(dǎo)

1:新建報表所需的數(shù)據(jù)源DataSet.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Data;

namespace ********
{
    public class DataSet
    {
        public DataTable CreatDataSet()
        {
            DataTable dt = new DataTable();
            dt.Columns.Add("A");
            dt.Columns.Add("B");
            dt.Columns.Add("C");
            return dt;

        }
    }
}

指定所需要綁定的Table的列，返回dataTable 類,CreatDataSet方法名稱隨便起，也可以在一個類裏面定義多個方法（不同數(shù)據(jù)源）

2：設(shè)計報表

報表設(shè)計這裡就不涉及了

3：把第一步新建的數(shù)據(jù)源加到報表裏面綁定

注意：這裡需要先引用 Interop.VBA.dll 才可以把新建的CS文件作為數(shù)據(jù)源導(dǎo)入

把數(shù)據(jù)源導(dǎo)入后綁定即可

4：直接把報表導(dǎo)出為PDF，Excel等格式

復(fù)制代碼代碼如下:

ReportViewer viewer = new ReportViewer();
            viewer.ProcessingMode = ProcessingMode.Local;
            viewer.LocalReport.ReportEmbeddedResource = "***.Page.Report.Report1.rdlc";
            ReportDataSource rds_1 = new ReportDataSource("DataSet1", dtReport);//DataSet1為報表裏面的數(shù)據(jù)源名稱
            viewer.LocalReport.DataSources.Add(rds_1);

            ReportParameter rp1 = new ReportParameter("參數(shù)1","參數(shù)1的值" );//給參數(shù)賦值
            ReportParameter rp2 = new ReportParameter("參數(shù)2","參數(shù)2的值" );
            viewer.LocalReport.SetParameters(new ReportParameter[] {rp1, rp2 });

            Warning[] warnings;
            string[] streamIds;
            string mimeType = string.Empty;
            string encoding = string.Empty;
            string extension = string.Empty;

            byte[] bytes = viewer.LocalReport.Render("Excel", null, out mimeType, out encoding, out extension, out streamIds, out warnings);
            //Excel ,PDF ,Word 等格式
            // Now that you have all the bytes representing the PDF report, buffer it and send it to the client.
            Response.Buffer = true;
            Response.Clear();
            Response.ContentType = mimeType;
            Response.AddHeader("content-disposition", "attachment; filename=1_" + DateTime.Now.ToString("yyyyMMddhhssmm") + "" + "." + extension);
            Response.BinaryWrite(bytes); // create the file
            Response.Flush(); // send it to the client to download

5:在頁面引用報表（rpResult為報表控件）

復(fù)制代碼代碼如下:

DataTable dt = new DataTable();//自己拼出數(shù)據(jù)源就可以
                ReportDataSource repDataSource = new ReportDataSource("DataSet1", dt);

                //*設(shè)置報表參數(shù),并顯示
                this.rpResut.LocalReport.ReportEmbeddedResource = "***.Page.Report.Report1.rdlc"";
                this.rpResut.LocalReport.DataSources.Clear();
                this.rpResut.LocalReport.DataSources.Add(repDataSource);
                 ReportParameter rp1 = new ReportParameter("參數(shù)1","參數(shù)1的值" );//給參數(shù)賦值
                  ReportParameter rp2 = new ReportParameter("參數(shù)2","參數(shù)2的值" );

                this.rpResut.LocalReport.SetParameters(new ReportParameter[] {rp1, rp2 });
                this.rpResut.DataBind();
                this.rpResut.LocalReport.Refresh();

至此，報表的產(chǎn)出和顯示都OK了，如果需要更深入的了解，請查看其它文章