DataServiceDataSource Submit Changes problem

[Devopriyo]

Hi
     I am currenty developing WPF applications which will consume a wcf data service with works with entity framework 4.1 code first . In WPF application I am using Radgridview and RadDataServiceDataSource

   following the code in XAML page
 
              <telerik:RadDataServiceDataSource Height="100" HorizontalAlignment="Left" Margin="208,242,0,0" Name="radDataServiceDataSource1" VerticalAlignment="Top" Width="100" QueryName="Currency" AutoLoad="True" SubmittingChanges="radDataServiceDataSource1_SubmittingChanges">
            <telerik:RadDataServiceDataSource.DataServiceContext >
                <local:MyBaazaarContext/>
            </telerik:RadDataServiceDataSource.DataServiceContext>
        </telerik:RadDataServiceDataSource>
        <telerik:RadGridView Grid.Row="0" ItemsSource="{Binding DataView, ElementName=radDataServiceDataSource1}" IsBusy="{Binding IsBusy, ElementName=radDataServiceDataSource1}" ShowGroupPanel="False" Name="grdDetails"  />
 
When I am making changes in the gridview an calling   radDataServiceDataSource1.SubmitChanges() nothings getting change.


please Help

Thanks In Advance

[Rossen Hristov]

Hello,

Unfortunately we could not reproduce the behavior that you describe. 

Can you please send us a runnable sample project that demonstrates how the SubmitChanges method does not work?

Thanks in advance.

All the best,
Ross
the Telerik team

[Heiko]

We ran into similar problems, and in the end it was the rights-management of the wcf data service which caused the problems. You should carefully check if all necessary access rules are set for the entity you want to save, which is done in the InitializeService method. NOTE: for saving an entity via wcf data service it is NOT enough to set "EntitySetRights.All" but also set "EntitySetRights.WriteAppend" and "EntitySetRights.WriteMerge" which results in the following line of code:

config.SetEntitySetAccessRule("myEntity", EntitySetRights.All | EntitySetRights.WriteAppend | EntitySetRights.WriteMerge);

Also it us very useful to use something like fiddler to check the traffic between client and service.
hth

[Rossen Hristov]

Hi,

Thanks for the information. I am sure that it will be useful for other people as well.

Greetings,
Ross
the Telerik team