asp.net - Adding additional properties to an entity framework 4 code first CTP 5 entity -

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i using asp.net mvc 3 , entity framework code first ctp 5. wondering if possible add additional properties not mapped table column?

i haved news class , defined such:

public class news : entity {    public int newsid { get; set; }    public string title { get; set; }    public string body { get; set; }    public bool active { get; set; } }

my database context class:

public class mycontext : dbcontext {    public dbset<news> newses { get; set; } }

in entity class have property defined like:

public ilist<ruleviolation> ruleviolations { get; set; }

i have not code part yet, want broken rules added list when object validated. error getting is:

one or more validation errors detected during model generation:      system.data.edm.edmentitytype: : entitytype 'ruleviolation' has no key defined. define key entitytype.     system.data.edm.edmentityset: entitytype: entityset ruleviolations based on type ruleviolation has no keys defined.

here reposity code:

public news findbyid(int newsid) {    return context.database.sqlquery<news>("news_findbyid @newsid",       new sqlparameter("newsid", newsid)).firstordefault(); }

update 2011-03-02:

here entity class:

public class entity {    public ilist<ruleviolation> ruleviolations { get; set; }     public bool validate()    {       // still needs coded       bool isvalid = true;        return isvalid;    } }

here ruleviolation class:

public class ruleviolation {    public ruleviolation(string parametername, string errormessage)    {       parametername = parametername;       errormessage = errormessage;    }     public string parametername { get; set; }    public string errormessage { get; set; } }

here context class:

public class mycontext : dbcontext {    public dbset<news> newses { get; set; }     protected override void onmodelcreating(modelbuilder modelbuilder)    {       modelbuilder.entity<news>().ignore(n => n.ruleviolations);    } }

you can ignore type using fluent api adding ignore rule onmodelcreating method of mycontext class

public class mycontext : dbcontext {    public dbset<news> newses { get; set; }    protected override void onmodelcreating(modelbuilder builder) {      builder.ignore<ruleviolation>()    }  }

or can ignore property using notmapped attribute

public class enitity {    [notmapped]   public ilist<ruleviolation> ruleviolations { get; set; }    //other properties here  }

and entity framework ignore property.


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