Is there any way to know the no of gridcommands (buttons) in the prepare JS function ....

<%@ Page Language="C#" %>

<%@ Register Assembly="Coolite.Ext.Web" Namespace="Coolite.Ext.Web" TagPrefix="ext" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" 
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<script runat="server">
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!Ext.IsAjaxRequest)
        {
            this.Store1.DataSource = new object[]
            {
                new object[] {"3m Co", 71.72, 0.02, 0.03, "9/1 12:00am"},
                new object[] {"Alcoa Inc", 29.01, 0.42, 1.47, "9/1 12:00am"},
                new object[] {"Altria Group Inc", 83.81, 0.28, 0.34, "9/1 12:00am"},
                new object[] {"American Express Company", 52.55, 0.01, 0.02, "9/1 12:00am"},
                new object[] {"American International Group, Inc.", 64.13, 0.31, 0.49, "9/1 12:00am"},
                new object[] {"AT&amp;T Inc.", 31.61, -0.48, -1.54, "9/1 12:00am"},
                new object[] {"Boeing Co.", 75.43, 0.53, 0.71, "9/1 12:00am"},
                new object[] {"Caterpillar Inc.", 67.27, 0.92, 1.39, "9/1 12:00am"},
                new object[] {"Citigroup, Inc.", 49.37, 0.02, 0.04, "9/1 12:00am"},
                new object[] {"E.I. du Pont de Nemours and Company", 40.48, 0.51, 1.28, "9/1 12:00am"}
            };

            this.Store1.DataBind();
        }
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>Coolite Toolkit Example - Prepare Toolbar</title>
    <link href="../../../../resources/css/examples.css" rel="stylesheet" type="text/css" />    

    <script type="text/javascript">
        var template = '{1}';

        var change = function (value) {
            return String.format(template, (value > 0) ? 'green' : 'red', value);
        }

        var pctChange = function (value) {
            return String.format(template, (value > 0) ? 'green' : 'red', value + '%');
        }
        
        var prepare = function (grid, toolbar, rowIndex, record) {
            var firstButton = toolbar.items.get(0);
            if (record.data.price < 50) {
                firstButton.setDisabled(true);
                firstButton.setTooltip('Disabled');
            }
            
            //you can return false to cancel toolbar for this record
        }        
    </script>

</head>
<body>
    <form id="form1" runat="server">
        <ext:ScriptManager ID="ScriptManager1" runat="server" />
        
        <h1>Prepare Toolbar</h1>
        
        <ext:Store ID="Store1" runat="server">
            <Reader>
                <ext:ArrayReader>
                    <Fields>
                        <ext:RecordField Name="company" />
                        <ext:RecordField Name="price" Type="Float" />
                        <ext:RecordField Name="change" Type="Float" />
                        <ext:RecordField Name="pctChange" Type="Float" />
                        <ext:RecordField Name="lastChange" Type="Date" DateFormat="n/j h:ia" />
                    </Fields>
                </ext:ArrayReader>
            </Reader>
        </ext:Store>
 
        <ext:GridPanel 
            ID="GridPanel2" 
            runat="server" 
            StoreID="Store1" 
            Title="Prepare toolbar" 
            Width="600" 
            Height="300"
            AutoExpandColumn="Company">
            <ColumnModel ID="ColumnModel1" runat="server">
                <Columns>
                    <ext:Column ColumnID="Company" Header="Company" Width="160" Sortable="true" DataIndex="company" />
                    <ext:Column Header="Price" Width="75" Sortable="true" DataIndex="price">
                        <Renderer Format="UsMoney" />
                    </ext:Column>
                    <ext:Column Header="Change" Width="75" Sortable="true" DataIndex="change">
                        <Renderer Fn="change" />
                    </ext:Column>
                    <ext:Column Header="Change" Width="75" Sortable="true" DataIndex="pctChange">
                        <Renderer Fn="pctChange" />
                    </ext:Column>
                    <ext:Column Header="Last Updated" Width="85" Sortable="true" DataIndex="lastChange">
                        <Renderer Fn="Ext.util.Format.dateRenderer('m/d/Y')" />
                    </ext:Column>
                    
                    <ext:CommandColumn Width="110">
                        <Commands>
                            <ext:GridCommand Icon="Delete" CommandName="Delete" Text="Delete" />
                            <ext:GridCommand Icon="NoteEdit" CommandName="Edit" Text="Edit" />
                        </Commands>
                                                
                    </ext:CommandColumn>
                </Columns>
            </ColumnModel>
            <SelectionModel>
                <ext:RowSelectionModel ID="RowSelectionModel1" runat="server" SingleSelect="true" />
            </SelectionModel>
            <Listeners>
                <Command Handler="Ext.Msg.alert(command, record.data.company);" />
            </Listeners>
        </ext:GridPanel>  
    </form>
</body>
</html>