LoadViewState not firing on post back in custom control

Recently started developing a custom control with complex data handling. So far so good. Now lets try adding view state content to the custom control. Oh no! its not working. What's wrong is there a design flaw or some thing overlooked.

Have been struggling for quite a decent number of hours to fix this. After revisiting the code and looking into event life cycle for ASP.NET .

Ha ha ... yes overlooked a basic detail but have given me a severe headache. Never load any custom control in Page_Load but load them in OnPreInit.

Instead of loading

    protected void Page_Load(object sender, EventArgs e)
    {
       if (!Page.IsPostBack)
       {
       }
    }

load the controls in

    protected override void OnPreInit(EventArgs e)
    {
       if (!Page.IsPostBack)
       {
       }
    }

This very detail can be more daunting after the design had become more complicated.

To err is human, but to really foul things up requires a computer. ~Farmer's Almanac, 1978