小编Nod*_*dir的帖子

我想创建一个这样的方法:

var result = database.Search<EntityType>(x=>x.Name, "Entity Name field value");
result = database.Search<EntityType>(x=>x.Id, "Entity Id field value");
result = database.Search<EntityType2>(x=>x.Id, "Entity2 Id field value");
result = database.Search<EntityTypeAny>(x=>x.FieldAny, "EntityAny FieldAny value");

我该如何实现这个方法？

我已经从AuthorizeAttribute实现了RoleAuthorize类

public sealed class RoleAuthorize : AuthorizeAttribute
{
    protected override bool AuthorizeCore(HttpContextBase httpContext)
    {
        var roles = Roles;

        return false;
    }
}

但是当过滤器发生时,属性Roles为null.谢谢.