Hi Le Thanh,

Thank you for writing.

You can create ListView like Google Talk no doubt. In order to do that you will have to make your own custom visual element. After you do that you can bind it to the table, list, etc. with the users and visualize it to the screen.

I have created a sample project, which will give you idea how to do that and allow easy customizations which will help you fit your exact requirements.

I hope this helps.

Regards,
Nikolay Aleksiev
the Telerik team

Thank you very much for the example project !
But with example project, how to access custom item to change elemtent of it, ex: userstatus from "Available" to "Offline" :

and how to group custom item with sample project by code:

Hello Le Thanh,

In order to react on user property changes, your user class have to implement the INotifyPropertyChanged interface and you will have to raise the PropertyChanged event.

In order to group the users, you will have to create groups and specify the group a user should be assigned to. Later when you change the user's properties you can also change the groups they belong to. I have also added sorting just to give you basic idea.

I have attached a sample project to show you everything in action.

Hope this helps. Please let me know if you have further questions.

Kind regards,
Paul
the Telerik team

Thank you very much, I understood and done project like image
But please help me with same problem in topic : ListView DragDrop with Groups     and i written my problem in end of topic

I am glad everything with this case is sorted out. Please expect our answer in the mentioned forum thread. 
 
Greetings,
Stefan
the Telerik team