RadScheduler Performance Improvement

[Sergio]

Greetings

I am to implement ways for improving the performance of my RadScheduler.I cannot bind the control in the client given that one of the requirements of my application is to create a datatable or a dataset dynamically based on the return values.

My RadScheduler binds perfectly, however, performance wise, the scheduler is taking to long to generate the view upon view change. I had an opportunity to read the optimized query example, and I like it a lot. I was thinking to implement something alike by doing a LINQ to Datatable and then binding the RadScheduler control. In this instance, I believe the Datasource_Selecting Event wont be the best choice.

Is it there an available event - say - RadScheduler_BeforeRangeChange or ViewRangeChange - so I could go ahead and bind the control per view instance? 

Say in that event

IEnumerable<DataRow> query =
    from rows in MyDataTable.AsEnumerable()
    where rows.Field<DateTime>("START") > RadScheduler1.VisibleRangeStart AND
    rows.Field<DateTime>("END") < RadScheduler1.VisibleRangeEnd
    select rows;

DataTable boundTable = query.CopyToDataTable<DataRow>();

RadScheduler1.DataSource = boundTable;

If there not an availabel event ,is there a work around? Also, after the RadScheduler taking too long is returning me the view, but right after error - System.webforms.pagerequestManagerServerError Exception - ViewState Mac Failed

How could I be about fixing these performance issues?

Please let me know,
Thanks

[Peter]

Hi Sergio,

You can use NavigationComplete:

protected void RadScheduler1_NavigationComplete(object sender, SchedulerNavigationCompleteEventArgs e)
   {
       //RadScheduler1.VisibleRangeStart
       //RadScheduler1.VisibleRangeEnd
   }

Also, I suggest you review the general top performance tips:http://www.telerik.com/products/aspnet-ajax/resources/top-performance.aspx


Best wishes,
Peter
the Telerik team

[Sergio]

Hello

Thank you for the post

I believe to be very close, I used the navigation Command Event but if i dont force an update in my update panel, the Radscheduler wont bind, and this strategy is still taking quite a bit

protected void RadScheduler1_NavigationCommand(object sender, SchedulerNavigationCommandEventArgs e)
       {
           RadScheduler1.DataSource = GetViewInstanceDataTable(FriendsLoadedData);
           RadScheduler1.Rebind();
           RadAjaxManager1.ResponseScripts.Add(String.Format("$find('{0}').ajaxRequest();", RadAjaxManager1.ClientID));

       }

Also, I am using a radtooltip to display scheduler information, I have been able to do this in the past. However now I am faced with an error - Server Requested timeout and the information in the tooltip is nefver display - Could this be consider the same performance issue?

By the way, this is also my first time implementing the Rad Scheduler with tooltip in 4.0, I have always done it in 3.5, with no problem. is there anything i must have in consideration?

[Peter]

Hi Sergio,

What are your RadAjaxManager settings? Have you configured it so that RadScheduler updates itself?

<telerik:RadAjaxManager ID="RadAjaxManager1" runat="server">
       <AjaxSettings>
           <telerik:AjaxSetting AjaxControlID="RadScheduler1">
               <UpdatedControls>
                   <telerik:AjaxUpdatedControl ControlID="RadScheduler1"></telerik:AjaxUpdatedControl>
               </UpdatedControls>
           </telerik:AjaxSetting>
       </AjaxSettings>
   </telerik:RadAjaxManager>

As for the RadToolTip issue, can you open a support ticket and send us a working demo for testing?


Regards,
Peter
the Telerik team

[Sergio]

Hi

Yeah, that is how i have set my RadAjaxManager, I open a support ticket.
Thanks for your help

Sergio