SortDescriptors Not Updating in Usercontrol

[Kieron]

I've got the following radgridview control with a default sort descriptor on it:

<telerik:RadGridView x:Name="rgvMain" VerticalAlignment="Top" AutoGenerateColumns="False" CanUserResizeRows="False" CanUserInsertRows="False" CanUserSortGroups="False" ShowGroupPanel="False"
                        RowIndicatorVisibility="Collapsed" ItemsSource="{Binding CurrentActivities}" Visibility="{Binding CurrentActivitiesVisibility}">
       <telerik:RadGridView.Columns>
         <telerik:GridViewDataColumn DataMemberBinding="{Binding DateAndTimeLogged}" Header="Date Logged" UniqueName="LogDate" Width="Auto" IsReadOnly="True" />
         <telerik:GridViewDataColumn DataMemberBinding="{Binding TypeDescription}" Header="Type" UniqueName="TypeDescription" Width="Auto" IsReadOnly="True"/>
         <telerik:GridViewDataColumn DataMemberBinding="{Binding ActivityStudent.FullName}" Header="Student" UniqueName="StudentName" Width="Auto" IsReadOnly="True" />
         <telerik:GridViewDataColumn DataMemberBinding="{Binding ActivityStudent.Family.Name}" Header="Family" UniqueName="FamilyName" Width="Auto" IsReadOnly="True"/>
         <telerik:GridViewDataColumn DataMemberBinding="{Binding ActivityText}" Header="Report" UniqueName="Report" Width="Auto" IsReadOnly="True"/>
       </telerik:RadGridView.Columns>
       <telerik:RadGridView.SortDescriptors>
         <telerik:ColumnSortDescriptor Column="{Binding Columns[LogDate], ElementName=rgvMain}" SortDirection="Descending"/>
       </telerik:RadGridView.SortDescriptors>
     </telerik:RadGridView>

 

The ItemsSource is bound to:

public ObservableCollection<Activity> CurrentActivities
{
  get { return new ObservableCollection<Activity>(Utils.AllActivities.Where(x => x.LoggedUser == Utils.glbCurrentlyLoggedInUser)); }
}

 

Whenever the usercontrol is first loaded - the sortdescriptors work, but then any future loads of the usercontrol, the sortdescriptors/filters get lost - I've tried adding a Rebind to the GV on the usercontrol loaded but this doesn't make a difference.

[Martin]

Hello Kieron,

I have tested the scenario you described and everything works as expected. I am sending you the sample project I used for reproducing the case. Please take a look at it and let me know in case of any misunderstandings.

Regards,
Martin Vatev
Progress Telerik