如何将参数和数据源同时传递到rdlc报告

Question

    private void Test_Load(object sender, EventArgs e)
    {
        try
        {

            string sql = "[companyid]   ,[companyname] ,[Shopid]   ,[shopname],[shopaddress],[shopphone],[fax], [footermsg],[footermsg_ar] FROM [shop] Where id  = '1' ";
            DataAccess.ExecuteSQL(sql);
            DataTable dt = DataAccess.GetDataTable(sql);
            ReportDataSource reportDSDetail = new ReportDataSource("DataSet1", dt);

            string sqli = "SELECT [logo] FROM [logo] Where id= '1' ";
            DataAccess.ExecuteSQL(sql);
            DataTable dts = DataAccess.GetDataTable(sql);
            string path = Application.StartupPath + @"\LOGO\";
            string imagePath = path + dts.Rows[0].ItemArray[0].ToString();
            ReportParameter pImageUrl = new ReportParameter("pName", "file://" + imagePath, true);
            this.reportViewer1.LocalReport.ReportPath =path+@"Rep.rdlc";
            this.reportViewer1.LocalReport.EnableExternalImages = true;
            this.reportViewer1.LocalReport.SetParameters(new ReportParameter[] { pImageUrl });
            this.reportViewer1.LocalReport.DataSources.Add(reportDSDetail);
            this.reportViewer1.RefreshReport();

        }
        catch (Exception ex)
        {
            MessageBox.Show("Exception=" + ex);
        }
    }

在RDLC报告中，我创建了一个名为pName的参数，并与映像连接并配置了外部。 我需要在报告中同时获取参数和数据源，我尝试了很多方法但都失败了。 请帮助我解决此问题，以在RDLC报告中同时获取参数和数据源

Answer 1

首先，您需要转到Report Data，并添加 Parameters ，

添加参数 Right Click on textbox 后，要在其中显示parameters-> Click Expression并添加 Expression

其中Showdt是parameter名称

并从code behind到data source和parameters一起这样

ReportDataSource rds = new ReportDataSource();//pass Your Datasource
ReportViewer1.LocalReport.DataSources.Clear();
ReportParameter p1 = new ReportParameter("Showdt", "Date : " + DateTime.Now.ToShortDateString());
//you can add multiple parameter like this
this.ReportViewer1.LocalReport.SetParameters(new ReportParameter[]{p1}); 
 ReportViewer1.LocalReport.DataSources.Add(rds);
 ReportViewer1.LocalReport.Refresh(); 

you can check this