Hello,

I try to delete rows when using ObjectDataSource, but I receive the following error under IE: 'Microsoft JScript runtime error: Object doesn't support this property or method'. My configuration is similar to your example GridPanel/DataSource Controls/Paging & Sorting. I have modified the sample to illustrate the problem. The steps to replicate this are:
- select a row on the grid
- click the Delete button
- click the Save button

The JavaScript error should show up.

How can I make this work?


Default.aspx: 

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

    <script runat="server">
        protected void Store1_RefreshData( object sender, StoreRefreshDataEventArgs e )
        {
            ObjectDataSource1.SelectParameters["start"].DefaultValue = e.Start.ToString();
            ObjectDataSource1.SelectParameters["limit"].DefaultValue = e.Limit.ToString();
            ObjectDataSource1.SelectParameters["sort"].DefaultValue = e.Sort;
            ObjectDataSource1.SelectParameters["dir"].DefaultValue = e.Dir.ToString();

            Store1.DataBind();
        }

        protected void ObjectDataSource1_Selected( object sender, ObjectDataSourceStatusEventArgs e )
        {
            ( this.Store1.Proxy[0] as DataSourceProxy ).TotalCount = (int) e.OutputParameters["count"];
        }
    </script>

    <style type="text/css">
        .x-grid3-td-fullName .x-grid3-cell-inner
        {
            font-family: tahoma, verdana;
            display: block;
            font-weight: normal;
            font-style: normal;
            color: #385F95;
            white-space: normal;
        }
        .x-grid3-row-body p
        {
            margin: 5px 5px 10px 5px !important;
            width: 99%;
            color: Gray;
        }
    </style>

    <script type="text/javascript">
        var fullName = function(value, metadata, record, rowIndex, colIndex, store)
        {
            return '' + record.data.LastName + ' ' + record.data.FirstName + '';
        };
    </script>

</head>
<body>
    <form id="form1" runat="server">
    <ext:ScriptManager ID="ScriptManager1" runat="server" />
    <asp:ObjectDataSource ID="ObjectDataSource1" runat="server" OnSelected="ObjectDataSource1_Selected"
        SelectMethod="GetEmployeesFilter" TypeName="Coolite.Examples.Code.Northwind.Employee"
        DeleteMethod="DeleteEmployee">
        <SelectParameters>
            <asp:Parameter Name="start" Type="Int32" />
            <asp:Parameter Name="limit" Type="Int32" />
            <asp:Parameter Name="sort" />
            <asp:Parameter Name="dir" />
            <asp:Parameter Name="count" Direction="Output" Type="Int32" />
        </SelectParameters>
        <DeleteParameters>
            <asp:Parameter Name="EmployeeID" Type="Int32" />
        </DeleteParameters>
    </asp:ObjectDataSource>
    <ext:Store ID="Store1" runat="server" AutoLoad="true" RemoteSort="true" DataSourceID="ObjectDataSource1"
        OnRefreshData="Store1_RefreshData">
        <AutoLoadParams>
            <ext:Parameter Name="start" Value="={0}" />
            <ext:Parameter Name="limit" Value="={3}" />
        </AutoLoadParams>
        <Proxy>
            <ext:DataSourceProxy />
        </Proxy>
        <Reader>
            <ext:JsonReader ReaderID="EmployeeID">
                <Fields>
                    <ext:RecordField Name="FirstName" />
                    <ext:RecordField Name="LastName" />
                    <ext:RecordField Name="Title" />
                    <ext:RecordField Name="TitleOfCourtesy" />
                    <ext:RecordField Name="BirthDate" Type="Date" />
                    <ext:RecordField Name="HireDate" Type="Date" />
                    <ext:RecordField Name="Address" />
                    <ext:RecordField Name="City" />
                    <ext:RecordField Name="Region" />
                    <ext:RecordField Name="PostalCode" />
                    <ext:RecordField Name="Country" />
                    <ext:RecordField Name="HomePhone" />
                    <ext:RecordField Name="Extension" />
                    <ext:RecordField Name="Notes" />
                </Fields>
            </ext:JsonReader>
        </Reader>
    </ext:Store>
    <ext:GridPanel runat="server" ID="GridPanel1" Title="Employees" Frame="true" StoreID="Store1"
        Height="300">
        <ColumnModel runat="server">
            <Columns>
                <ext:Column ColumnID="fullName" Header="Full Name" Width="150" DataIndex="LastName">
                    <Renderer Fn="fullName" />
                </ext:Column>
                <ext:Column DataIndex="Title" Header="Title" Width="150" />
                <ext:Column DataIndex="TitleOfCourtesy" Header="Title Of Courtesy" Width="150" />
                <ext:Column DataIndex="BirthDate" Header="BirthDate" Width="110">
                    <Renderer Fn="Ext.util.Format.dateRenderer('Y-m-d')" />
                </ext:Column>
                <ext:Column DataIndex="HireDate" Header="HireDate" Width="110">
                    <Renderer Fn="Ext.util.Format.dateRenderer('Y-m-d')" />
                </ext:Column>
                <ext:Column DataIndex="Address" Header="Address" Width="150" />
                <ext:Column DataIndex="City" Header="City" Width="100" />
                <ext:Column DataIndex="Region" Header="Region" Width="100" />
                <ext:Column DataIndex="PostalCode" Header="PostalCode" Width="100" />
                <ext:Column DataIndex="Country" Header="Country" Width="100" />
                <ext:Column DataIndex="HomePhone" Header="HomePhone" Width="150" />
                <ext:Column DataIndex="Extension" Header="Extension" Width="100" />
            </Columns>
        </ColumnModel>
        <View>
            <ext:GridView runat="server" EnableRowBody="true">
                <GetRowClass Handler="rowParams.body = '<p>'+record.data.Notes+'</p>'; return 'x-grid3-row-expanded';" />
            </ext:GridView>
        </View>
        <SelectionModel>
            <ext:RowSelectionModel runat="server" />
        </SelectionModel>
        <BottomBar>
            <ext:PagingToolBar ID="PagingToolBar1" runat="server" PageSize="3" StoreID="Store1"
                DisplayInfo="true" DisplayMsg="Displaying employees {0} - {1} of {2}" EmptyMsg="No employees to display" />
        </BottomBar>
        <LoadMask ShowMask="true" />
    </ext:GridPanel>
    <ext:Button ID="btnDelete" runat="server" Text="Delete" AutoPostBack="false" Icon="Delete">
        <Listeners>
            <Click Handler="#{GridPanel1}.deleteSelected();" />
        </Listeners>
    </ext:Button>
    <ext:Button ID="Button3" runat="server" Text="Save" AutoPostBack="false" Icon="Disk">
        <Listeners>
            <Click Handler="#{GridPanel1}.save();" />
        </Listeners>
    </ext:Button>
    </form>
</body>
</html>
This also requires adding the following method to the Employee class:
public static void DeleteEmployee(int EmployeeID)
        {
            NorthwindDataContext db = new NorthwindDataContext();
            var empl = db.Employees.FirstOrDefault( e => e.EmployeeID == EmployeeID );
            if ( empl != null )
            {
                db.Employees.DeleteOnSubmit( empl );
                //db.SubmitChanges(); // all the related rows should be deleted before calling this method
            }
        }
Regards,
Tadeusz