How to check properties(isValid, phantom, modified) and compare updated record with previous record

[smaoui]

Hello this is my first project whit EXT.NET

I try to modify AutoSave Exemple
On the HandleChanges method, i want to get the Record object to check 'isValid()' 'Phantom' and 'modified' properties
With e.DataHandler.ObjectData<TestPerson>() i can find the new values but not the previous
How can i acces to record on Store or on gridPanel and get these values on server side?
Thanks.

 
protected void HandleChanges(object sender, BeforeStoreChangedEventArgs e)
    {
        ChangeRecords<TestPerson> persons = e.DataHandler.ObjectData<TestPerson>();

        foreach (TestPerson created in persons.Created)
        {
           //BDDCreate..
        }

        foreach (TestPerson deleted in persons.Deleted)
        {
            //BddDelete
        }

        foreach (TestPerson updated in persons.Updated)
        {
            //BDDUpdate
        }
        e.Cancel = true;
    }

[smaoui]

We have te check All properties Client Side and than call direct method.