how to implement security-dependent buttons in razor/webmatrix?

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ASP.NET

I have a web page with input buttons that should be displayed or hidden based on user-role permissions.

I'm currently using jquery to call a wcf service to get the valid control id's for the current user-role.  The wcf service returns the valid user control id's and I execute some jquery to display the matching controls to the user.

I'm wondering if there's a better way to implement this design in razor/webmatrix.

It seems like I can use HtmlHelper controls in razor/webmatrix but when I enter "@Html. " I see auto-complete for several controls like TextBox and CheckBox but no Button and no Div.

So what's the proper way to implement show/hide security for user role controls in razor/webmatrix?

It seems like show/hide functions in jquery is not the best way since js isn't secure.  It seems like HtmlControls could be used to control if a control is rendered to the browser or not.

Please let me know your opinion and experience with this.