binding in gridview

Question

User932259438 posted

hi,

I tried with debug and I got results in dataset visualizer but not binding in gridview.

My datatable:

  

private static DataTable GetSlipDataTable()
    {
        DataTable Slip_DataTable = new DataTable();

        if (HttpContext.Current.Session["slip"] != null)
        {
            Slip_DataTable = (DataTable)HttpContext.Current.Session["slip"];

        }
        else
        {
            Slip_DataTable.Columns.Add(new DataColumn("BettingSlipNr"));
            Slip_DataTable.Columns.Add(new DataColumn("DateOfEvent"));
            Slip_DataTable.Columns.Add(new DataColumn("NameOfEvent"));
            Slip_DataTable.Columns.Add(new DataColumn("TypeOfBets"));
            Slip_DataTable.Columns.Add(new DataColumn("Pick"));
            Slip_DataTable.Columns.Add(new DataColumn("Odds"));
            Slip_DataTable.Columns.Add(new DataColumn("OddsId"));
            Slip_DataTable.Columns.Add(new DataColumn("Stake"));
            Slip_DataTable.Columns.Add(new DataColumn("StakeSum"));
            Slip_DataTable.Columns.Add(new DataColumn("EventId"));
            Slip_DataTable.Columns.Add(new DataColumn("SilpType"));
            Slip_DataTable.Columns.Add(new DataColumn("IsDisplayMessage"));
            Slip_DataTable.Columns.Add(new DataColumn("IsLiveEvent"));
            Slip_DataTable.Columns.Add(new DataColumn("IsLiveEventBetChanged"));
        }
        return Slip_DataTable;
    }





        DataTable Slip_DataTable = GetSlipDataTable();

My data table is not empty and I want to binding

Like that:

 Session["slip"] = Slip_DataTable;
        GridView1.DataSource = Slip_DataTable;
        GridView1.DataBind();


Not working.

What is wrong in my code?

Answer 1

User-1780421697 posted

Make sure that Gridview have autogeneratedcolumn= true otherwise it will not display any data.

What is problem, is there any error while binding or null exception or is there empty gridview?

Answer 2

User1559292362 posted

Hi progy85,

What is wrong in my code?

According to your code snippet, if the value of session variable named HttpContext.Current.Session["slip"] is null, it seems that the variable named Slip_DataTable doesn't have any rows. please debug your code check if the variable named Slip_DataTable has some rows by using the following code.

DataTable Slip_DataTable = GetSlipDataTable();
int count = Slip_DataTable.Rows.Count;

In addition, could you please provide your ASPX page code and error message if it has.

Best regards,

Cole Wu