Filter not working with custom DataRow

[Benedikt]

I have problem with the RadGridView, and my own ObservableDataRow. The grid throws an exception if i click on the filter symbol in a grid. This problem occures if i bind to the following object:

RadObservableCollection<ObservableDataRow> items = new RadObservableCollection<ObservableDataRow>();
// Items will be filled with instances of ObservableDataRow instances...

The error does NOT occure if i declare the collection like this:

RadObservableCollection<DataRow> items = new RadObservableCollection<DataRow>();

But i also fill the list with instances of ObservableDataRow.

The exception: No generic method 'Select' for the type 'System.Linq-Quieryable' is with the provided type argument and arguments compatible. No type argument should be provided, if the method is not generic. (Translated from a german error message - may not the same as thrown in english.)

Using RadObservableCollection<DataRow> solved the problem, but there must be a bug.

Or did i some thing else wrong?

As an additional information, i have also created my own ObservableDataTable for creating instances of ObservableDataRow.

Thank you.

[Maya]

Hello Sebastian,

I resolved similar issue a while back. Could you test whether you can reproduce the behavior with our current official release Q2 2015 SP ?

Regards,
Maya
Telerik

[Benedikt]

I've used the newest Q2 2015 release in the project. So yes, i could.

[Maya]

Hi,

Great, let me know how it goes. 

Regards,
Maya
Telerik

[Benedikt]

In my case the exists in the newest version. Nothing changed from previous versions. Thank you.

 

[Maya]

Hello Sebastian,

That's a bit strange. Could you send a small reproducible project that I can debug on my side and investigate the cause of the problem ?  

Regards,
Maya
Telerik