c# - Can't access property from content page -

I have a simple property for the page title, but I do not seem to use it from the content page.

  Public partial category admin_themes_BackEnd_blank: System.Web.UI.MasterPage {public string page title {get; Set; } Protected Zero Page_load (Object Sender, EventArgse E) {}}  

Then I am using the following to view and obtain the property in the content page. I have a Variable Master. Using PageTitle but

Can not I see it in intellesne to choose?