How to real-time refresh without memory leak?

[Yonghan]

Hi,
I'm suffering memory issues when I using DomainDataSource.RefreshInterval.
RadGridView tiny increase memory each intervals.
Eventaully after a few days, browser is gone.

(RadControls 4_2011_1_0502 and Silverligth 4.60310.0)

<t:RadGridView x:Name="dataGrid" AutoGenerateColumns="True"
               ItemsSource="{Binding ElementName=bookDomainDataSource, Path=Data}">
</t:RadGridView>

<riaControls:DomainDataSource AutoLoad="True"
                              RefreshInterval="00:00:05"
                              d:DesignData="{d:DesignInstance my1:Book, CreateList=true}" Height="0"
                              LoadedData="DomainDataSource_LoadedData"
                              LoadingData="DomainDataSource_LoadingData"
                              Name="bookDomainDataSource"
                              QueryName="GetBooksQuery" Width="0">
  <riaControls:DomainDataSource.DomainContext>
    <my:TestDomainContext />
  </riaControls:DomainDataSource.DomainContext>
</riaControls:DomainDataSource>

Regards,
Yonghan Yoon

[Rossen Hristov]

Hello Yonghan,

This sounds just like this memory leak, which Microsoft have recently fixed. In case upgrading to the latest version of WCF RIA Services does not resolve the memory leak, can you please see what objects are leaking with the help of a profiling tool or WinDbg and send us the results.

By the way, have you considered using our new  RadDomainDataSource instead of the stock MS DomainDataSource? 

To explore the new RadDomainDataSource control in greater depth, please check its online examples and take a look at the following blog posts:

• Introducing RadDomainDataSource for Silverlight
• Loading data with RadDomainDataSource for Silverlight
• An MVVM Approach to Telerik Domain Services for Silverlight
• Creating CRUD application with RadDomainDataSource for Silverlight
• Why we have built RadDomainDataSource for Silverlight?

All the best,
Ross
the Telerik team

[Yonghan]

Thank you for your advice.
Now, I'm gonna test a few days.