为什么我没有在C＃中的reportviewer中以表格格式获取数据表

Question

I am not getting datatable I created, in report viewer. I am getting report parameter in report viewer but not table. Please help me to resolve this issue. Thanks in advance.

        DataTable dt = new DataTable("Type-1");
        dt.Columns.Add("Column1", typeof(string));
        dt.Columns.Add("Column2", typeof(string));
        dt.Columns.Add("Column3", typeof(string));
        dt.Columns.Add("Column4", typeof(string));
        dt.Columns.Add("Column5", typeof(string));

        dt.Rows.Add("0.4", "1", "3.0","0.95-1.0-1.05", "Test1");
        dt.Rows.Add("7.0", "1", "3.0","1.68-1.76-1.85", "Test2");

        var reportDataSource1 = new ReportDataSource("Type-1", dt);
        this.reportViewer1.LocalReport.DataSources.Add(reportDataSource1);
        this.reportViewer1.LocalReport.ReportEmbeddedResource = "Test.Report1.rdlc";

        reportViewer1.LocalReport.SetParameters(new ReportParameter("RP_SrNo", _SrNo));
        reportViewer1.LocalReport.SetParameters(new ReportParameter("RP_TestType", _TestType));
        reportViewer1.LocalReport.SetParameters(new ReportParameter("RP_Date", _Date));
        this.reportViewer1.RefreshReport();

Answer 1

you can try this with a Dataset. Follow the steps below 1. Add a new Dataset to your project. 2. Go to the Dataset and a new Datatable. 3. On the DataTable right click to add columns 4. Right on the columns to define the properties such dataTypes 5. Go to your report designer to add the Dataset you just created. 6. From the report Data panel right click on DataSet then Add DataSet. 7. Give you DataSet a name ie DataSet1 -> Select datasource to the dataset you created earlier -> Available Datasets select the dataTable you added. 8. Design report -> Insert a table on your report and choose the data to be displayed. 9. Now your code should look like below.

//Report Source
this.reportViewer1.LocalReport.ReportEmbeddedResource = "Test.Report1.rdlc";

//Set Parameters
reportViewer1.LocalReport.SetParameters(new ReportParameter("RP_SrNo", _SrNo));
reportViewer1.LocalReport.SetParameters(new ReportParameter("RP_TestType", _TestType));
reportViewer1.LocalReport.SetParameters(new ReportParameter("RP_Date", _Date));

//Prepare datasource (These should be the same columns as on step 3)
DataTable dt = new DataTable("Type-1");
dt.Columns.Add("Column1", typeof(string));
dt.Columns.Add("Column2", typeof(string));
dt.Columns.Add("Column3", typeof(string));
dt.Columns.Add("Column4", typeof(string));
dt.Columns.Add("Column5", typeof(string));

dt.Rows.Add("0.4", "1", "3.0","0.95-1.0-1.05", "Test1");
dt.Rows.Add("7.0", "1", "3.0","1.68-1.76-1.85", "Test2");

//Add dataset as defined in step 7
var reportDataSource1 = new ReportDataSource("DataSet1", dt);
this.reportViewer1.LocalReport.DataSources.Add(reportDataSource1);
this.reportViewer1.RefreshReport();

Hope that helps.