After i have modified the CssClass element to create my own CSS Classes list,  How do(using which property) i specify the location of the style sheet to be used by the editable area.

 

I have tried using            TemplateStyleSheet="~/example.css" after refering to follwing link

 but when i do that i am getting error saying  "cannot find attribute 'TemplateStyleSheet' of element 'Editor'"