Error when binding timeslot view

[Ron Cirka]

I am getting an error when trying to bind a timeslot view over multiple days. Sometimes it works, sometimes it doesn't. I've traced it down to the "NumberOfSlots" variable. When I bind certain data, it won't go over 250. However, with some data it works fine with a value of 2500. I've pasted below a code snippet of a page that return the error. Any ideas as what could be causing this?

 Specified argument was out of the range of valid values.
Parameter name: value
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.ArgumentOutOfRangeException: Specified argument was out of the range of valid values.
Parameter name: value

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:

[ArgumentOutOfRangeException: Specified argument was out of the range of valid values.
Parameter name: value]
   System.Web.UI.WebControls.Unit..ctor(Double value, UnitType type) +8670187
   System.Web.UI.WebControls.Unit.Percentage(Double n) +38
   Telerik.Web.UI.AllDayAppointmentControl.GetWidth() +75
   Telerik.Web.UI.AppointmentControl.CalculateSize() +75
   Telerik.Web.UI.Scheduler.Views.AllDayLayout.CreateAppointmentControls(IEnumerable`1 slots, Boolean registerAppointmentControls) +1338
   Telerik.Web.UI.Scheduler.Views.AllDayLayout..ctor(IEnumerable`1 slots, Boolean registerAppointmentControls, IComparer`1 appointmentComparer) +103
   Telerik.Web.UI.Scheduler.Views.Timeline.TimelineLayout..ctor(IEnumerable`1 slots, Boolean registerAppointmentControls, IComparer`1 appointmentComparer) +45
   Telerik.Web.UI.Scheduler.Views.Timeline.TimelineLayout..ctor(IEnumerable`1 slots, IComparer`1 appointmentComparer) +42
   Telerik.Web.UI.Scheduler.Views.Timeline.RendererBase.CreateLayout(List`1 timeSlots) +83
   Telerik.Web.UI.Scheduler.Views.Timeline.RendererBase.CreateInnerContentTable(Control container, IList`1 allTimeLineSlots) +332
   Telerik.Web.UI.Scheduler.Views.Timeline.GroupedByResource.Renderer.CreateVerticalContent(SchedulerTopTable topTable) +404
   Telerik.Web.UI.Scheduler.Views.Timeline.GroupedByResource.Renderer.GetInnerContent() +310
   Telerik.Web.UI.Scheduler.Views.Timeline.GroupedByResource.Renderer.GetContent() +88
   Telerik.Web.UI.RadScheduler.CreateContent() +221
   Telerik.Web.UI.RadScheduler.CreateChildControls(Boolean bindFromDataSource) +190
   Telerik.Web.UI.RadScheduler.CreateChildControls() +33
   System.Web.UI.Control.EnsureChildControls() +87
   System.Web.UI.Control.PreRenderRecursiveInternal() +44
   System.Web.UI.Control.PreRenderRecursiveInternal() +171
   System.Web.UI.Control.PreRenderRecursiveInternal() +171
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +842

<telerik:RadScheduler runat="server" ID="RadScheduler1" SelectedView="TimelineView"
            OnAppointmentDataBound="RadScheduler1_OnAppointmentDataBound" TimelineView-HeaderDateFormat="D"
            DataSourceID="dsEventsDataSource" Skin="Office2007" GroupBy="Room" GroupingDirection="Vertical"
            DayStartTime="08:00:00" DayEndTime="23:30:00" TimeZoneOffset="03:00:00" DataKeyField="Conf_ID"
            DataSubjectField="Conference_Name" DataStartField="Start" DataEndField="End"
            OverflowBehavior="Expand" ShowViewTabs="false" ColumnWidth="10px" Width="950px"
            Height="400px" CustomAttributeNames="Conf_ID" OnAppointmentCommand="RadScheduler1_OnAppointmentCommand"
            OnResourceHeaderCreated="RadScheduler1_ResourceHeaderCreated" RowHeight="40px"
            MultiDayView-NumberOfDays="2" RowHeaderWidth="100px" EnableDatePicker="false"
            ShowNavigationPane="false" AllowInsert="false" AllowEdit="false" AllowDelete="false">
            <advancedform modal="true" />
            <timelineview numberofslots="192" slotduration="0:15" columnheaderdateformat="h tt"
                timelabelspan="4" showinsertarea="false" />
            <resourcetypes>
                <telerik:ResourceType KeyField="VideoEndPointId" Name="Room" TextField="Name" ForeignKeyField="VideoEndPointId"
                    DataSourceID="dsRoomsDataSource" />
            </resourcetypes>
            <resourceheadertemplate>
                <asp:LinkButton ID="btnRemove" runat="server" Text="X" CommandName="RemoveResource"
                    CausesValidation="false" CssClass="ui-icon ui-icon-trash" Style="float: left"
                    OnClientClick="return confirm('Are you sure you want to remove this room?')" />&nbsp;
                <asp:Label ID="ResourceLabel" runat="server" />
            </resourceheadertemplate>
        </telerik:RadScheduler>
        <asp:LinqDataSource ID="dsEventsDataSource" runat="server" OnSelecting="dsEventsDataSource_OnSelecting">
        </asp:LinqDataSource>
        <asp:LinqDataSource ID="dsRoomsDataSource" runat="server" OnSelecting="dsRoomsDataSource_OnSelecting">
        </asp:LinqDataSource>

public partial class Test4 : System.Web.UI.Page
{
    public List<Glowpoint.VNOC.BusinessLayer.Room> Rooms { get { return (List<Glowpoint.VNOC.BusinessLayer.Room>)ViewState["Rooms"]; } set { ViewState["Rooms"] = value; } }

    protected void Page_Load(object sender, EventArgs e)
    {
        if (!Page.IsPostBack)
        {


            RadScheduler1.SelectedDate = DateTime.Parse("10/15/2009");
            TimeSpan daySpan = DateTime.Parse("10/19/2009 6:30:00 AM") - RadScheduler1.SelectedDate;
            RadScheduler1.TimelineView.NumberOfSlots = (daySpan.Days + 1) * 96;

            Rooms = new List<Glowpoint.VNOC.BusinessLayer.Room>()
            {
                new Glowpoint.VNOC.BusinessLayer.Room() {
                    VideoEndPointId = new Guid("95d15340-a38b-4c06-970e-290019f2d7fb"),
                    Name = "test1",
                    Schedules = new List<RoomSchedule>() { new RoomSchedule() { Conference_Name = "TPX 2.0 Upgrade", PreTestTime = DateTime.Parse("10/15/2009 6:45:00 AM"), Start = DateTime.Parse("10/15/2009 7:00:00 AM"), End = DateTime.Parse("10/19/2009 6:30:00 AM"), Conf_ID = 158062, VideoEndPointId = new Guid("95d15340-a38b-4c06-970e-290019f2d7fb") } }
                }
            };
        }
    }

    protected void RadScheduler1_OnAppointmentCommand(object sender, AppointmentCommandEventArgs e)
    {
        if (e.CommandName == "RemoveResource")
        {
            Guid roomId = new Guid(e.CommandArgument.ToString());
            Rooms.Remove(Rooms.Single(r => r.VideoEndPointTypeId == roomId));
            RadScheduler1.Rebind();
            System.Web.UI.ScriptManager.RegisterStartupScript(this, this.GetType(), "", "RemoveRoom('" + roomId + "');", true);
        }
    }

    protected void RadScheduler1_ResourceHeaderCreated(object sender, Telerik.Web.UI.ResourceHeaderCreatedEventArgs e)
    {
        ((Label)e.Container.FindControl("ResourceLabel")).Text = e.Container.Resource.Text;
        ((LinkButton)e.Container.FindControl("btnRemove")).CommandArgument = e.Container.Resource.Key.ToString();
    }

    protected void dsEventsDataSource_OnSelecting(object sender, LinqDataSourceSelectEventArgs e)
    {
        List<RoomSchedule> schedules = new List<RoomSchedule>();
        foreach (var room in Rooms) { schedules.AddRange(room.Schedules); }
        e.Result = schedules;
    }

    protected void RadScheduler1_OnAppointmentDataBound(object sender, SchedulerEventArgs e)
    {
        if (e.Appointment.Subject == String.Empty) e.Appointment.BackColor = System.Drawing.Color.Red;
    }

    protected void dsRoomsDataSource_OnSelecting(object sender, LinqDataSourceSelectEventArgs e)
    {
        e.Result = Rooms;
    }
}

[Peter]

Hi Ron,

We tested your code (slightly modified) with our own datasource, but we could not replicate the problem. Please, see the attached sample for reference. To be able to assist you further, please open a support ticket and send us a working demo that we can test locally.


Kind regards,
Peter
the Telerik team

Instantly find answers to your questions on the new Telerik Support Portal.
Watch a video on how to optimize your support resource searches and check out more tips on the blogs.

[Ron Cirka]

Thanks, I have sent a support ticket.

[Josh]

Dear Support,

I have a similar problem except the binding error occurs when I attempt to bind more than 364 records. 

Can I view the solution that was offered to the original poster of this thread?  Or can someone explain how to get around this limitation?

Thanks,
Josh

[Veronica]

Hello Josh,

When Peter debugged the application of Ron, he found that Ron is setting NumberOfSlots to a value larger than 2000 (not 200). 2000 is a way too many slots for RadScheduler to render. The maximum number that you can set NumberOfSlots to is 359, which Peter found empirically. Our suggestion is to reorganize RadScheduler in such a way as to not to exceed this number.

All the best,
Veronica Milcheva
the Telerik team