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AdvancedEditForm question

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Scheduler

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9 Answers, 1 is accepted

answered on 07 Oct 2008, 11:09 AM

Hi Luka,

If you just need to validate for empty Subject, you can use the following approach and cancel the AppointmentInsert and AppointmentUpdate events if the appoitment subject is empty:

    
            protected void RadScheduler1_AppointmentInsert(object sender, Telerik.Web.UI.SchedulerCancelEventArgs e)  
        
                {  
        
                    if (e.Appointment.Subject == String.Empty)  
        
                    {  
        
                        Label1.Text = "Subject cannot be empty. Please, enter some text.";  
        
                        e.Cancel = true;  
        
                    }  
        
                    else 
        
                        Label1.Text = String.Empty;  
        
                }  
        
                protected void RadScheduler1_AppointmentUpdate(object sender, Telerik.Web.UI.AppointmentUpdateEventArgs e)  
        
                {  
        
                    if (e.ModifiedAppointment.Subject == String.Empty)  
        
                    {  
        
                        Label1.Text = "Subject cannot be empty. Please, enter some text.";  
        
                        e.Cancel = true;  
        
                    }  
        
                    else 
        
                        Label1.Text = String.Empty;  
        
                }

Regards,
Peter
the Telerik team

Check out Telerik Trainer, the state of the art learning tool for Telerik products.

answered on 06 Feb 2009, 08:49 PM

Hi again,

Well I got the new Q3 release, and the validation is taken care of now.

But I have a new problem: I followed the tutorial on this site:

http://www.telerik.com/help/aspnet-ajax/schedule_advancedformtemplate.html

I did everything it says, but when I try to access the advancededit or insert form in my application I get the following error :

Napaka: [Exception... "'Sys.WebForms.PageRequestManagerServerErrorException: Sys.WebForms.PageRequestManagerServerErrorException: Object reference not set to an instance of an object.' when calling method: [nsIDOMEventListener::handleEvent]" nsresult: "0x8057001c (NS_ERROR_XPC_JS_THREW_JS_OBJECT)" location: "<unknown>" data: no]

This is a copy-paste error from Firefox "Error Console". (A part of webDeveloper addon).

And the following error is thrown by IE8:

Webpage error details

User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0; WOW64; Trident/4.0; SLCC1; .NET CLR 2.0.50727; Media Center PC 5.0; .NET CLR 3.5.21022; .NET CLR 3.5.30428; .NET CLR 3.0.30422)
Timestamp: Sat, 7 Feb 2009 11:13:08 UTC

Message: Sys.WebForms.PageRequestManagerServerErrorException: Object reference not set to an instance of an object.
Line: 4674
Char: 21
Code: 0
URI: http://localhost:64667/planeKoledar/ScriptResource.axd?d=CtVywZQzmVx7CdbOTRFzUTpjGv_IeTfmXKYJaz9kJyzV6cFi75yE98fD3vgMAR0nSzxTJvjbX5-PoOvPK_LyhiT0fS4UAP2nESr6bHVk3Vg1&t=ffffffffc165464a

Now I tried not to edit the advanced forms, I used the ones just like they are in C:\Program Files (x86)\Telerik\RadControls for ASPNET AJAX Q3 2008\Live Demos\Scheduler\Examples\AdvancedFormTemplate\DefaultTemplates\CS and I still get the mentioned error.

Any help would be appreciated.

thanks in advance,
Lp, Luka