RadGrid javascript error

[Jesús]

Hi!

I have a RadGrid with some data. I group this data for some criteria (I call, p.e., tableori).

GridGroupByExpression expression = new GridGroupByExpression();
GridGroupByField gridGroupByField = new GridGroupByField();

//Add select fields (before the "Group By" clause) - Campo de ruptura
gridGroupByField = new GridGroupByField();
gridGroupByField.FieldName = "tableori";
gridGroupByField.FormatString = "<strong>{0}</strong>";
expression.SelectFields.Add(gridGroupByField);

//Add a field for group-by (after the "Group By" clause) - Agrupación
gridGroupByField = new GridGroupByField();
gridGroupByField.FieldName "tableori";
expression.GroupByFields.Add(gridGroupByField);

assigGrid.MasterTableView.GroupByExpressions.Add(expression);
assigGrid.MasterTableView.ShowGroupFooter = true;

The trouble is when I try to change the message at GroupHeader. When I try to sort the grid or paging it, I have the exception "Session state can only be used when enableSessionState is set to true, either in a configuration file or in the Page directive"; but if I comment the lines inside the if otpion of GridGroupHeaderItem works fine.

protected void assigGrid_ItemCreated(object sender, GridItemEventArgs e)
{
    try
    {
        if (defObjeto == null)
        {
            objeto = Request.QueryString["obj"];
            idioma = UtilControlSession.GetIdioma(Session);
            wc = new WebCache(Cache, (string)Session[Constantes.SESS_APLICACION_ACTIVA], bdConnStr);
            defObjeto = wc.GetObjetoAsignacionH(objeto, idioma);
        }

        if (e.Item is GridGroupHeaderItem)
        {
            GridGroupHeaderItem item = (GridGroupHeaderItem)e.Item;

            // Los datos que afectan a esta agrupación (criterio(s) de agrupación y subtotales si los hubiere)
            DataRowView groupDataRow = (DataRowView)e.Item.DataItem;

            int colSpan = item.Cells[1].ColumnSpan;
            item.Cells.RemoveAt(1);

            TableCell tc = new TableCell();
            tc.ColumnSpan = colSpan;
            tc.HorizontalAlign = HorizontalAlign.Left;
            tc.Text = "My title";
            item.Cells.Add(tc);
        }
    }
    catch (Exception exc)
    {
    }
}

Any ideas or suggestions to skip this problem?

[Yavor]

Hi,

First, you can make sure which line of code is raising the exception. If it is the line with a reference to the Session field, you must make sure that Session state is enabled for the page.

Sincerely yours,
Yavor
the Telerik team

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