/// <summary>
/// Creates an instance of the EntityType object and set the CurrentObject property.
/// </summary>
/// <param name="ctx">The CoreDbContext database instance.</param>
public void ActivateInstance <T>(CoreDbContext ctx) where T : class
{
T detailObject = null;
if (typeof(T).ImplementsInterface <IEntity>())
{
if (ViewType?.ToLower() == "single")
{
if (!string.IsNullOrEmpty(Entity.FromSql))
{
detailObject = ctx.Set <T>().FromSql(Entity.FromSql).FirstOrDefault();
}
else
{
detailObject = ctx.Set <T>().FirstOrDefault();
}
if (detailObject == null)
{
detailObject = ctx.CreateProxy <T>();
}
}
else
{
detailObject = ctx.CreateProxy <T>();
}
}
else if (typeof(T).ImplementsInterface <IEntity>())
{
if (!string.IsNullOrEmpty(Entity.FromSql))
{
detailObject = ctx.Set <T>().FromSql(Entity.FromSql).FirstOrDefault();
}
else
{
throw new ApplicationException($"The DetailView \"{ViewId}\" has an entity \"{Entity}\" that implements the IQuery interface and is mandatory inform the attribute FromSql in Entity definition.");
}
}
else
{
detailObject = (T)typeof(T).Assembly.CreateInstance(typeof(T).FullName);
}
CurrentObject = detailObject;
}