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Asked: 2020-11-08 13:51:06 +0800 CST 2020-11-08 13:51:06 +0800 CST

How to fix infinite load cycle in a report viewer?

  • 772

I am trying to create a web report in an .aspx page, the report template is a .rdlc file. When I run the app, I fill a bar chart with the same Datasource I use for the report, however my report gets stuck on loading calling the app again as if it were refreshing the page: enter image description here

The code with which I fill the report is as follows:

DataTable datos = new DataTable();
            string cs = ConfigurationManager.ConnectionStrings["OCEntities"].ConnectionString;
            using (SqlConnection con = new SqlConnection(cs))
            {
                SqlCommand comm = new SqlCommand("select * from Vista_ReporteCompras ", con);
                SqlDataAdapter da = new SqlDataAdapter(comm);
                da.Fill(datos);
            }
            visor.ProcessingMode = ProcessingMode.Local;
            visor.LocalReport.ReportPath = Server.MapPath("Plantilla.rdlc");
            ReportDataSource datasource = new ReportDataSource("Datos", datos);
            visor.LocalReport.DataSources.Clear();
            visor.LocalReport.DataSources.Add(datasource);
            cargar = false;

Do you have an idea how to fix it?

c#

1 Answers

  1. Best Answer

    According to this answer on Stack Overflow , it's possible that your error is because you haven't implemented the PostBackin your source code.

    Example:

    protected void Page_Load(object sender, EventArgs e)
{
    if(!IsPostBack)
    {
        // Report data source code...
        myReport.LocalReport.Refresh();
    }
}
    • 1