Binding with RIA Service not working

[Albert]

Hello Friends ,

I am using Wcf Ria Service to Bind grid.Suppose in my table only 1 recode is there.If I use following code to bind grid ,then it shows only 1 blank row.Data is not being display right now.

And if i set auto generate column to true and remove all columns from <telerik:RadGridView.Columns/> collection,then after bind 1 row display properly with all data.

XAML Code :

<telerik:RadGridView Grid.Column="1"  RowIndicatorVisibility="Collapsed" IsReadOnly="True"
                                   CanUserFreezeColumns="False"    RowDetailsVisibilityMode="Visible"
                         CanUserResizeColumns="False"  x:Name="grdUsre" AutoGenerateColumns="True">
                   <telerik:RadGridView.Columns>
                       <telerik:GridViewDataColumn Header="First Name" DataMemberBinding="{Binding Path=FirstName}"/>
                       <telerik:GridViewDataColumn Header="Last Name" DataMemberBinding="{Binding LastName}" />
                   </telerik:RadGridView.Columns>
               </telerik:RadGridView>

Code to Bind Grid :

TaskContext objTaskContext = new TaskContext();
           grdUsre.ItemsSource = objTaskContext.Users;
           objTaskContext.Load(objTaskContext.GetUsersQuery());

Can anyone tell me how to solve this ?

-Thanks

[Veselin Vasilev]

Hi Albert,

Everything seems to work fine. Please find attached a sample project. Just change the name of your sql express instance in the web.config file.

Greetings,
Veselin Vasilev
the Telerik team

[Daniel Morgenthaler]

Hi Veselin

The sample works fin if we only want to display data in the grid. But no Insert or Delete is possible with this solution.

 

In the documentation under http://www.telerik.com/help/silverlight/gridview-configuring-the-databindings.html you describe that the ItemsSource must be bund t a collection that implements INotifyCollectionChanged. The Customers in your sample is of type EntitySet<Customer> which implements INotifyCollectionChanged.

 

Why I can’t insert or delete records?

 

Thanks and have a nice day.

 

Daniel

[Vlad]

Hello,

 You cannot do this since the collection bound to the grid is not even IList. My suggestion is to use DomainDataSource to achieve your goal. 

Sincerely yours,
Vlad
the Telerik team

[Daniel Morgenthaler]

Thanks for this. Can you show us how you do this in your sample?

[Vlad]

Hello,

 You just need to bind the grid using DomainDataSource and call SubmitChanges() when you want to submit changes to the server-side. 

Sincerely yours,
Vlad
the Telerik team