using Generics

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  1. Parchet
    Parchet avatar
    2 posts
    Member since:
    Jun 2009

    Posted 02 Jul 2009 Link to this post

    Hello I would like to do something like that

    1  public class GenericList<T>  
    2     {  
    3         private List<T> _list = new List<T>();  
    4         public List<T> List { get { return _list; } set { _list = value; } }  
    5     }  
    6  
    7  
    8     [Telerik.OpenAccess.Persistent()]  
    9     public class PersonList : GenericList<Person>  
    10     {  
    11         private string _personListName;  
    12         public string PersonListName { get { return _personListName; } set { _personListName = value; } }  
    13     } 

    How can I achive that I can't put the Persistent attribute on the base class.

    Thank you
  3. Alexander
    Admin
    Alexander avatar
    727 posts

    Posted 06 Jul 2009 Link to this post

    Hello Frédéric,

    I am afraid this is not possible that way. We cannot create tables for generic types as we do not know their particular type. As far as I can see you are trying to implement a custom persistent capable collection. You can achieve this by making the collection deriving directly from our TrackedList<T> generic collection which is persistent capable and you will not need the Persistent attribute.

    Greetings,
    Alexander
    the Telerik team

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  5. Parchet
    Parchet avatar
    2 posts
    Member since:
    Jun 2009

    Posted 08 Jul 2009 Link to this post

    Hello thank you for the answer.

    I will have a look at the TrackedList<T> to see if it can help.

    In fact I have a generic Tree class in my code and this tree class is inherited by a specialiyed tree class that specifies the Generic Type with a persitent capable type.

    What I would like is to be able to persist the inherited tree with the particular type specified, is it possible?

    Have you as well a TrackedDictionary<T>?

    Thank you
  7. Alexander
    Admin
    Alexander avatar
    727 posts

    Posted 09 Jul 2009 Link to this post

    Hi Frédéric,

    Unfortunately we do not have a TrackedDictionary<T> but I hope you will be able to accomplish your task with the TrackedList<T>. All collections that derive from it are persistent capable.
    Please feel free to contact us if you have any further questions.

    Best wishes,
    Alexander
    the Telerik team

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