private void ReporteArticulosPocoStock_Load(object sender, EventArgs e)
        {
            RepositorioBase<Articulos> repo = new RepositorioBase<Articulos>();
            ReporteArticulosAgotados listaf = new ReporteArticulosAgotados();

            listaf.SetDataSource(ListaArticulos);

            ArticulosReportViewer.ReportSource = listaf;
            ArticulosReportViewer.Refresh();
        }
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                TextBoxFechaInicial.Text = DateTime.Now.Date.ToString("yyyy-MM-dd");
                TextBoxFechaFinal.Text   = DateTime.Now.Date.ToString("yyyy-MM-dd");

                ArticulosReportViewer.ProcessingMode = Microsoft.Reporting.WebForms.ProcessingMode.Local;
                ArticulosReportViewer.Reset();

                ArticulosReportViewer.LocalReport.ReportPath = Server.MapPath(@"~\Reportes\ListadoArticulos.rdlc");
                ArticulosReportViewer.LocalReport.DataSources.Clear();
            }
        }