Dear Dr. Shahram Khosravi

I bumped my head over this :) In my opinion the source code for chapter 17 ( 793507 ch17\793507 ch17\Code\Code1 ) is missing the trackviewstate invocation on DataControlField when databinding is false in the load viewstate of the control.

snippet:

if (s != null && s.Length == fields.Length)
{
    for (int i = 0; i < s.Length; i++)
    {
        if (s[i] != null)
        {
            if (fields[i] == null) {
                fields[i] = new DataControlField();
                // in my opinion is missing:
                [u]((IStateManager)fields[i]).TrackViewState();</u>
            }
            ((IStateManager)fields[i]).LoadViewState(s[i]);
        }
    }
}

I am realy enjoying your book so i thought maybe it can be submitted to the eretta, in that way it could help other people.

Edwin