加载报告时出错

Question

我在带有报告查看器的Windows窗体中有一个名为“Relatorio1.rdlc”的报告。

在VS Studio中构建时，代码没有错误

SqlConnection conec1 = Tconex.GetConnection();

private void Verrelatorio_Load(object sender, EventArgs e)
{
    SqlCommand cmdReport = new SqlCommand();
    SqlDataReader drreport;
    DataSet dsreport = new dsBairros();

    try
    {
        cmdReport.CommandType = CommandType.Text;
        cmdReport.Connection = conec1;
        cmdReport.CommandText = "select Codigo,descricao from tblBairros ";
        drreport = cmdReport.ExecuteReader();
        dsreport.Tables[0].Load(drreport);
        drreport.Close();

        reportViewer1.LocalReport.ReportEmbeddedResource = "ContaTroco.Relatorio1.rdlc";

        ReportDataSource rds = new ReportDataSource();

        rds.Name = "dsBairros";
        rds.Value = dsreport.Tables[0];
        reportViewer1.LocalReport.DataSources.Add(rds);
        reportViewer1.RefreshReport();
    }
    catch (Exception ex)
    {
        MessageBox.Show(ex.Message);
    }
    finally
    {
        if (conec1.State == ConnectionState.Open)
        { conec1.Close(); }
    }
}

ReportViewer向我显示了Codigo字段的名称，描述但没有向我显示任何数据。

Dsbairros是一个类型化的数据集。我需要这样做，因为我将数据源的原始连接更改为不更新，现在报告不起作用。