How can i use safetly <% Recources.Resouce.X %> without broken page in ASP.NET?

[justfoad]

I have three languages in my project and I dinamically refresh my resources list.When i delete a resource key \[code\]{.DeleteButton} \[/code\]and then i try to call it \[code\]{ <asp:Literal Text="<%$ Resources: Resource, DeleteButton%>" runat="server" />}\[/code\]my page is broken because there is no DeleteButton key in my list.How can handle it ?