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Microsoft JScript runtime error: 'undefined' is null or not an object.

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KobusVisagie
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KobusVisagie asked on 04 Oct 2010, 10:59 AM
Hello Telerik,

Whenever I load my page, I get this error message: Microsoft JScript runtime error: 'undefined' is null or not an object. Here is the HTML Source:

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="TelerikTest.aspx.cs" Inherits="FCReport_Website.TelerikTest" %>
<%@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %>
 
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 
<head runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
        <telerik:RadScriptManager ID="RadScriptManager1" runat="server" EnableTheming="True">
        </telerik:RadScriptManager>
 
        <telerik:RadAjaxManager ID="RadAjaxManager1" runat="server" DefaultLoadingPanelID="RadAjaxLoadingPanel1">
            <AjaxSettings>
                <telerik:AjaxSetting AjaxControlID="rgDriverLicenseRenewals">
                </telerik:AjaxSetting>
                <telerik:AjaxSetting AjaxControlID="rgDriverLicenseExpired">
                </telerik:AjaxSetting>
                <telerik:AjaxSetting AjaxControlID="rgPDPRenewals">
                </telerik:AjaxSetting>
                <telerik:AjaxSetting AjaxControlID="rgPDPExpired">
                </telerik:AjaxSetting>
                <telerik:AjaxSetting AjaxControlID="rgUnpaidFines">
                </telerik:AjaxSetting>
                <telerik:AjaxSetting AjaxControlID="rgLicenseRenewals">
                </telerik:AjaxSetting>
                <telerik:AjaxSetting AjaxControlID="rgVehicleLicenseExpired">
                </telerik:AjaxSetting>
                <telerik:AjaxSetting AjaxControlID="rgFuelTransactions">
                    <UpdatedControls>
                        <telerik:AjaxUpdatedControl ControlID="rgDriverLicenseRenewals" UpdatePanelHeight="" />
                        <telerik:AjaxUpdatedControl ControlID="rgDriverLicenseExpired" UpdatePanelHeight="" />
                        <telerik:AjaxUpdatedControl ControlID="rgPDPRenewals" UpdatePanelHeight="" />
                        <telerik:AjaxUpdatedControl ControlID="rgPDPExpired" UpdatePanelHeight="" />
                        <telerik:AjaxUpdatedControl ControlID="rgUnpaidFines" UpdatePanelHeight="" />
                        <telerik:AjaxUpdatedControl ControlID="rgLicenseRenewals" UpdatePanelHeight="" />
                        <telerik:AjaxUpdatedControl ControlID="rgVehicleLicenseExpired" UpdatePanelHeight="" />
                        <telerik:AjaxUpdatedControl ControlID="rgFuelTransactions" UpdatePanelHeight="" />
                    </UpdatedControls>
                </telerik:AjaxSetting>
            </AjaxSettings>
        </telerik:RadAjaxManager>
 
        <telerik:RadAjaxPanel ID="RadAjaxPanel1" runat="server" height="200px" width="300px">
            <telerik:RadAjaxLoadingPanel ID="RadAjaxLoadingPanel1" Runat="server" Skin="Default">
            </telerik:RadAjaxLoadingPanel>
        </telerik:RadAjaxPanel>
 
        <telerik:RadGrid ID="rgDriverLicenseRenewals"
            runat="server"
            AutoEventWireup="True"
            AutoGenerateColumns="True"
            Visible="True"
            AllowFilteringByColumn="True"
            AllowPaging="True"
            AllowSorting="True"
            onneeddatasource="rgDriverLicenseRenewals_NeedDataSource">
            <PagerStyle Mode="NextPrevAndNumeric" />
            <GroupingSettings CaseSensitive="false" />
        </telerik:RadGrid>
 
        <br />
        <br />
 
        <telerik:RadGrid ID="rgDriverLicenseExpired"
            runat="server"
            AutoGenerateColumns="True"
            Visible="True"
            AllowFilteringByColumn="True"
            AllowPaging="True"
            AllowSorting="True"
            onneeddatasource="rgDriverLicenseExpired_NeedDataSource">
            <PagerStyle Mode="NextPrevAndNumeric" />
            <GroupingSettings CaseSensitive="false" />
        </telerik:RadGrid>
 
        <br />
        <br />
 
        <telerik:RadGrid ID="rgPDPRenewals"
            runat="server"
            AutoGenerateColumns="True"
            Visible="True"
            AllowFilteringByColumn="True"
            AllowPaging="True"
            AllowSorting="True"
            onneeddatasource="rgPDPRenewals_NeedDataSource">
            <PagerStyle Mode="NextPrevAndNumeric" />
            <GroupingSettings CaseSensitive="false" />
        </telerik:RadGrid>
 
        <br />
        <br />
 
        <telerik:RadGrid ID="rgPDPExpired"
            runat="server"
            AutoGenerateColumns="True"
            Visible="True"
            AllowFilteringByColumn="True"
            AllowPaging="True"
            AllowSorting="True"
            onneeddatasource="rgPDPExpired_NeedDataSource">
            <PagerStyle Mode="NextPrevAndNumeric" />
            <GroupingSettings CaseSensitive="false" />
        </telerik:RadGrid>
 
        <br />
        <br />
 
        <telerik:RadGrid ID="rgUnpaidFines"
            runat="server"
            AutoGenerateColumns="True"
            Visible="True"
            AllowFilteringByColumn="True"
            AllowPaging="True"
            AllowSorting="True"
            onneeddatasource="rgUnpaidFines_NeedDataSource">
            <PagerStyle Mode="NextPrevAndNumeric" />
            <GroupingSettings CaseSensitive="false" />
        </telerik:RadGrid>
 
        <br />
        <br />
 
        <telerik:RadGrid ID="rgLicenseRenewals"
            runat="server"
            AutoGenerateColumns="True"
            Visible="True"
            AllowFilteringByColumn="True"
            AllowPaging="True"
            AllowSorting="True"
            onneeddatasource="rgLicenseRenewals_NeedDataSource">
            <PagerStyle Mode="NextPrevAndNumeric" />
            <GroupingSettings CaseSensitive="false" />
        </telerik:RadGrid>
 
        <br />
        <br />
 
        <telerik:RadGrid ID="rgVehicleLicenseExpired"
            runat="server"
            AutoGenerateColumns="True"
            Visible="True"
            AllowFilteringByColumn="True"
            AllowPaging="True"
            AllowSorting="True"
            onneeddatasource="rgVehicleLicenseExpired_NeedDataSource">
            <PagerStyle Mode="NextPrevAndNumeric" />
            <GroupingSettings CaseSensitive="false" />
        </telerik:RadGrid>
 
        <br />
        <br />
 
        <telerik:RadGrid ID="rgFuelTransactions"
            runat="server"
            AutoGenerateColumns="True"
            Visible="True"
            AllowFilteringByColumn="True"
            AllowPaging="True"
            AllowSorting="True"
            onneeddatasource="rgFuelTransactions_NeedDataSource">
            <PagerStyle Mode="NextPrevAndNumeric" />
            <GroupingSettings CaseSensitive="false" />
        </telerik:RadGrid>
    </form>
</body>
</html>

And here's the C# source:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using FCReport_Library.Web;
using FCReport_Library.Data;
using System.Text;
using Telerik.Web.UI;
 
namespace FCReport_Website
{
    public partial class TelerikTest : System.Web.UI.Page
    {
        DataSet dsWorkQueue = new DataSet();
 
        protected void Page_Load(object sender, EventArgs e)
        {
             Session["UserID"] = 20;
             GetWorkQueue();
        }
 
        private void GetWorkQueue()
        {
            dsWorkQueue = DataAccess.GetDataSetByStoredProcedure("FCReport_GetWorkQueue", Session["UserID"]);
        }
 
        protected void rgDriverLicenseRenewals_NeedDataSource(object source, GridNeedDataSourceEventArgs e)
        {
            rgDriverLicenseRenewals.DataSource = dsWorkQueue.Tables[0];
        }
 
        protected void rgDriverLicenseExpired_NeedDataSource(object source, GridNeedDataSourceEventArgs e)
        {
            rgDriverLicenseExpired.DataSource = dsWorkQueue.Tables[1];
        }
 
        protected void rgPDPRenewals_NeedDataSource(object source, GridNeedDataSourceEventArgs e)
        {
            rgPDPRenewals.DataSource = dsWorkQueue.Tables[2];
        }
 
        protected void rgPDPExpired_NeedDataSource(object source, GridNeedDataSourceEventArgs e)
        {
            rgPDPExpired.DataSource = dsWorkQueue.Tables[3];
        }
 
        protected void rgUnpaidFines_NeedDataSource(object source, GridNeedDataSourceEventArgs e)
        {
            rgUnpaidFines.DataSource = dsWorkQueue.Tables[4];
        }
 
        protected void rgLicenseRenewals_NeedDataSource(object source, GridNeedDataSourceEventArgs e)
        {
            rgLicenseRenewals.DataSource = dsWorkQueue.Tables[5];
        }
 
        protected void rgVehicleLicenseExpired_NeedDataSource(object source, GridNeedDataSourceEventArgs e)
        {
            rgVehicleLicenseExpired.DataSource = dsWorkQueue.Tables[6];
        }
 
        protected void rgFuelTransactions_NeedDataSource(object source, GridNeedDataSourceEventArgs e)
        {
            rgFuelTransactions.DataSource = dsWorkQueue.Tables[7];
        }
    }
}

I really can't figure this out. Am I leaving out controls? Are they in the correct order? Is my C# code wrong?

Cheers,
G

4 Answers, 1 is accepted

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Martin
Telerik team
answered on 07 Oct 2010, 09:05 AM
webapplication1.zip
Hello Gregory,

I have reviewed your code and created a small sample based on it. However, I am not able to replicate the issue you have described. Please review the attached project and let me know if I miss something out or in case any further assistance is needed.

Best wishes,
Martin
the Telerik team
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KobusVisagie
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answered on 07 Oct 2010, 09:46 AM
Hello Martin,

Thank you for your reply. I've since figured out what the problem could be: RadGrid doesn't handle all SQL Server data types correctly when it's set to auto-generate columns. The error appears when:

  1. There's a NUMERIC field or DATETIME field returned by my Stored Procedure.
  2. I specify every column for each RadGrid, with one exception: If the column is a DATETIME value, I have to convert to it to a VARCHAR value before returning it or this error appears regardless, e.g:

convert(varchar(10), DateStamp, 111)

So, to solve the problem I now specify each column for each Rad Grid and convert all my DATETIME values to VARCHAR. This isn't really ideal, I was hoping that the RadGrid would be able to auto-generate columns regardless of data type. I don't know if this is a known issue or bug, or if there's some sort of workaround. Got any ideas?

G
. 
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KobusVisagie
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answered on 12 Oct 2010, 05:00 AM
*Bump*
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Martin
Telerik team
answered on 12 Oct 2010, 05:00 PM
webapplication1-modified.zip
Hello Gregory,

I have modified the sample project from my previous post and the grids are now bound to 'datetime' ('BirthDate' and 'HireDate') and 'int' ('EmployeeID') fields from a Sql data base. On my side the project still runs as expected. Please give it a try and let me know if I can help further.

Regards,
Martin
the Telerik team
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KobusVisagie
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Martin
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KobusVisagie
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