Question

I need to allow users to add new entries to GridView but at the same to disallow editing of existing entries. How can I achieve this?

Answer 1

You can use the IsReadOnlyBinding property of a RadGridView, for example:

<telerik:RadGridView ItemsSource="{Binding Path=MyViewModel.SomeData}" 
                     IsReadOnlyBinding="{Binding Path=IsExisting}" ... />

Each of your entries would then need to have a property named IsExisting, which has the value true if the entry is existing and false if it is new.