hey
<%@ Page Language="C#" %>
<%@ Import Namespace="System.Collections.Generic"%>
<%@ Import Namespace="ListView=Ext.Net.ListView"%>

<%@ Register Assembly="Ext.Net" Namespace="Ext.Net" TagPrefix="ext" %>

<script runat="server">
    protected void Page_Load(object sender, EventArgs e)
    {
        string id = Convert.ToString(1);
            Store store = new Store { ID = "StoreRow_" + id };
            Model model = new Model();

            DataTable dtTrend = new DataTable();
            dtTrend.Columns.Add("Name", typeof(string));
            dtTrend.Columns.Add("Data", typeof(int));
            dtTrend.Rows.Add("Day 1 ", 0);
            dtTrend.Rows.Add("Day 2 ", 0);
            dtTrend.Rows.Add("Day 3 ", 0);
            dtTrend.Rows.Add("Day 4 ", 0);
            dtTrend.Rows.Add("Day 5", 0);
            dtTrend.Rows.Add("Day 6", 0);

            foreach (DataColumn dc in dtTrend.Columns)
            {
                ModelField modelField = new ModelField { Name = dc.ColumnName, Mapping = dc.ColumnName, Type = ModelFieldType.String };
                model.Fields.Add(modelField);
            }
            store.Model.Add(model);

            store.DataSource = dtTrend;
            GrdSessions.Store.Add(store);
            foreach (DataColumn dc in dtTrend.Columns)
            {
                GrdSessions.ColumnModel.Columns.Add(new Column { Text = dc.ColumnName.Replace('_', ' '), DataIndex = dc.ColumnName, Width = 100 });
            } 

            CommandColumn commandColumn = new CommandColumn();
            commandColumn.ID = "colAction" + System.Guid.NewGuid();
            commandColumn.Flex = 1;
            commandColumn.Text = "View";
            commandColumn.DataIndex = "Id";
            commandColumn.Commands.Add(new GridCommand { Icon = Ext.Net.Icon.Note, CommandName = "View", Text = "View" });           
            commandColumn.DirectEvents.Command.Event += GrdInbox_Command;
            commandColumn.DirectEvents.Command.ExtraParams.Add(new Parameter { Name = "Id", Value = "record.data.Id" });
            commandColumn.DirectEvents.Command.ExtraParams.Add(new Parameter { Name = "command", Value = "command" });
            GrdSessions.ColumnModel.Columns.Add(commandColumn);
            GrdSessions.Render(pnlSessionGeneric, 0, RenderMode.InsertTo);
        }

        protected void GrdInbox_Command(object sender, DirectEventArgs e)
        {
            string commandName = e.ExtraParams["command"];
            long Id = Convert.ToInt64(e.ExtraParams["Id"]);
        }

</script>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>Ext.NET Example</title>    
</head>
<body>
    <form id="Form1" runat="server">
    <ext:ResourceManager runat="server" />
    <ext:Panel ID="pnlSessionGeneric" runat="server" AutoScroll="true" Border="false"
        autowidth="true" Layout="FitLayout" Header="false" Height="230">
        <Content>
            <ext:GridPanel ID="GrdSessions" runat="server" Layout="AnchorLayout" AnchorHorizontal="100%"
                Padding="5" Title="Session List" AnimCollapse="true" AutoScroll="true" Height="200">
                <ColumnModel ID="ColumnModel1" runat="server">
                    <Columns>
                    </Columns>
                </ColumnModel>
                <View>
                    <ext:GridView ID="GridView1" runat="server" TrackOver="true" />
                </View>
            </ext:GridPanel>
        </Content>
    </ext:Panel>
    </form>
</body>
</html>
when i click on view button then is show error. "the control with Id colAction00000#0000 not found."
can you help me where and what i am missing