radgridview can't display summaryrowsbottom value

[forrest]

I use radgridview control to fill tablea and tableb datasource.
in frmA and frmB I use same mothod 
 set radgridview property->summaryrowsbottom->sum filedname
in frmA recordset count is 10 ->radgridview summary display ok (sql: select * from table a)
but in frmB recordset count is 300 ->radgridview summary can't display from the gridview bottom  (sql:select * from tableb)

if frmB recordset count is 10  ->radgridview summary display ok (sql:select top 10 * from tableb)
how can i display summaryrowsbottom value in a lot of rows?
thanks!

2013.03.28
 
I use code 

private RadGridView radGridView1;

private GridViewSummaryItem  summaryItem1；
  
  private void LoadData()
{
tbladapter.fillbydate(ds.tbla,begindate,enddate);

     summaryItem1 = new GridViewSummaryItem("Id", "Sum of Id: {0}", GridAggregateFunction.Sum);

     var summaryRow1 = new GridViewSummaryRowItem(new[] {summaryItem1});

       //if I add onece the radgridview can't display in 299 recordset
        radGridView1.SummaryRowsBottom.Add(summaryRow1);     
       //if I add two same method the radgridview can display summary ok 
       radGridView1.SummaryRowsBottom.Add(summaryRow1);     


}

[Julian Benkov]

Hi Shenglong,

I have tested the reported scenario and I could not find the issue with the SummaryRowsBottom collection of RadGridView. Here is my test code:

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using Telerik.WinControls.UI;

namespace WindowsFormsApplication2
{
    public partial class Form1 : Form
    {
        private RadGridView gridView = new RadGridView();

        public Form1()
        {
            InitializeComponent();

            gridView.Dock = DockStyle.Fill;
            gridView.Parent = this;
            gridView.BringToFront();

            DataTable table = new DataTable();
            table.Columns.Add("Name");
            table.Columns.Add("Value", typeof(double));
            table.Columns.Add("Category");

            table.Rows.Add("Name1", 1.5, "C1");
            table.Rows.Add("Name2", 2.4, "C1");
            table.Rows.Add("Name3", 3.3, "C1");
            table.Rows.Add("Name4", 4.2, "C2");
            table.Rows.Add("Name5", 5.1, "C2");

            gridView.DataSource = table;
            gridView.BestFitColumns();

            GridViewSummaryRowItem sumRowBottom1 = new GridViewSummaryRowItem();
            sumRowBottom1.Add(new GridViewSummaryItem("Value", "Sum: {0:F2}; ", GridAggregateFunction.Sum));

            gridView.SummaryRowsBottom.Add(sumRowBottom1);
        }
    }
}

Please review the attached screenshot for details. 

Can you please provide me with more details on how to reproduce the issue on my end?

Greetings,
Julian Benkov
the Telerik team