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e.Appointment.Resources.GetResource returns null

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Scheduler
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Jesper Vognsen Laustsen
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Jesper Vognsen Laustsen asked on 22 Jul 2010, 10:46 AM
Hi,

I am trying to do a filter function for my RadScheduler, with a .NET checkboxlist as filter UI control. However, on the AppointmentDataBound event, I cant seem to get anything but NULL from the

e.Appointment.Resources.GetResource function.

Heres my event code:

 

protected

 

void RadScheduler1_AppointmentDataBound(object sender, SchedulerEventArgs e)

 

{

e.Appointment.Visible =

true;

 

 

foreach (ListItem item in CheckBoxList1.Items)

 

{

 

 

if (item.Selected)

 

{

 

Resource userRes = e.Appointment.Resources.GetResource("Vogne", item.Value);

 

 

if (userRes != null)

 

{

e.Appointment.Visible =

true;

 

}

}

}

}


And here's a part of my markup:

<

 

telerik:RadScheduler ID="RadScheduler1" runat="server" DataDescriptionField="Description"

 

 

DataEndField="End" DataKeyField="ID" DataRecurrenceField="RecurrenceRule" DataRecurrenceParentKeyField="RecurrenceParentID"

 

 

DataSourceID="sdsSchedule" DataStartField="Start" DataSubjectField="Subject"

 

 

EnableDescriptionField="True" Skin="Vista" Culture="Danish (Denmark)" FirstDayOfWeek="Monday"

 

 

Height="100%" LastDayOfWeek="Sunday" SelectedView="WeekView" OnAppointmentCreated="RadScheduler1_AppointmentCreated"

 

 

OnFormCreated="RadScheduler1_FormCreated" OnAppointmentDataBound="RadScheduler1_AppointmentDataBound">

 

 

<ResourceTypes>

 

 

<telerik:ResourceType DataSourceID="sdsCategoryA" ForeignKeyField="CategoryA" KeyField="catid"

 

 

Name="Vogne" TextField="catname" />

 

 

</ResourceTypes>

 

 

<AppointmentTemplate>

 

 

<div>

 

 

<b>

 

<%

# Eval("Subject") %>(<%# DataBinder.Eval(Container.Appointment, "Start", "{0:t}") %>-<%# DataBinder.Eval(Container.Appointment, "End", "{0:t}") %>)</b><br />

 

<%

# Eval("Vogne.Text") %>

 

 

</div>

 

 

</AppointmentTemplate>

 

 

</telerik:RadScheduler>

 


...
...

<

 

telerik:RadAjaxPanel ID="RadAjaxPanel1" runat="server" Height="200px" Width="300px">

 

 

<asp:CheckBoxList ID="CheckBoxList1" runat="server" AutoPostBack="True" DataSourceID="sdsCategoryA"

 

 

DataTextField="catname" DataValueField="catid" OnSelectedIndexChanged="CheckBoxList1_SelectedIndexChanged">

 

 

</asp:CheckBoxList>

 

 

</telerik:RadAjaxPanel

 



As you can see, I have a resource, and the CheckBoxList uses the same datasource as the resourceprovider in the Scheduler.

On inserting break point on Resource userRes = e.Appointment.Resources.GetResource("Vogne", item.Value); I can see that the resource has an item that matches my selcted item from the CheckBoxList, but it still evaluates to NULL.

Please HEEELLLP :-)

Regards

Jesper

3 Answers, 1 is accepted

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Jesper Vognsen Laustsen
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answered on 22 Jul 2010, 11:11 AM
Obviously one of my tests left a typo in the pasted code:

e.Appointment.Visible = true;


Should indeed have read:

e.Appointment.Visible = false;


But the problem persists ;-)

Jesper

0
Jesper Vognsen Laustsen
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answered on 22 Jul 2010, 01:41 PM
Actually, theres a twist to it as well.

If all I do on the AppointmentDataBound event is to set e.Appointment.Visible = true or false, Appointments will be rendered shown or hidden accordingly.

However - if I first set visible = false, then evaluate to change state, I cannot seem to change the state of the appointment. :-| Getting a bit confused about correct approach now.

0
Peter
Telerik team
answered on 27 Jul 2010, 02:12 PM
Hello Jesper,

There is an online example which demonstrates the same functionality:
http://demos.telerik.com/aspnet-ajax/scheduler/examples/resources/defaultcs.aspx

Note, that in FilterAppointment, resourceId is of type int:

private static void FilterAppointment(Appointment appointment, ICheckBoxControl checkBox, int resourceId)
       {
           if (appointment.Resources.GetResource("User", resourceId) != null && checkBox.Checked)
           {
               appointment.Visible = true;
           }
       }

In your case, probably, item.Value returns a string:

Resource userRes = e.Appointment.Resources.GetResource("Vogne", item.Value);

Could you please investigate in that direction and let us know if this was the case?


Cheers,
Peter
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Jesper Vognsen Laustsen
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Jesper Vognsen Laustsen
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Peter
Telerik team
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