Checks the specified ecommerce permission for the given user.
            
Namespace: CMS.EcommerceAssembly: CMS.Ecommerce (in CMS.Ecommerce.dll) Version: 8.0.0.0 (8.0.5239.26125)
Parameters
- permissionName
 - Type: 
System String
Permission name to be checked 
- siteName
 - Type: 
System String
Site name 
- user
 - Type: CMS.Base IUserInfo
User to be checked 
Return Value
Type:See Also