c# - Using a class library variable in an aspx page -

I have the following object in the class library:

  namespace id. Category details {public string contact name {gains; Set; }}}   
 In my website project, in the Espace page (which is a reference to the class library), I am trying to print using  ContactName  I  
  & lt; Div & gt; & Lt;% = Code with ID conditions. Focused object description. Contact index% & gt; & Lt; / Div & gt;   
 However, it is thinking that in the beginning of  id  it is  Page.ID , so it is not searching for my object properly. How do I search class library  id ?   
 
 
 The standard naming of the namespace has a substantial impact on your application, by calling it  naming namespace According to the guidelines  will solve your problem