gistfile1.cs

private int itemsPerPage = 2;

private CurrentProperties _CurrentProps = new CurrentProperties();

[Serializable()]
private struct CurrentProperties
{
  public int RowCount;
  public int CurrentPage;
}

//total no. of items
[DefaultValue(0)]
[NotifyParentProperty(true)]
public int RowCount
{
  get
  {
    return _CurrentProps.RowCount;
  }
  set
  {
    _CurrentProps.RowCount = value;
    SaveControlState();
  }
}
//current page
[DefaultValue(1)]
[NotifyParentProperty(true)]
private int CurrentPage
{
  get
  {
    return _CurrentProps.CurrentPage;
  }
  set
  {
    _CurrentProps.CurrentPage = value;
    SaveControlState();
  }
}

#region "Control state methods"

protected override void OnInit(System.EventArgs e)
{
  Page.RegisterRequiresControlState(this);
  base.OnInit(e);
}

protected override object SaveControlState()
{
  return this._CurrentProps;
}

protected override void LoadControlState(object savedState)
{
  _CurrentProps = (CurrentProperties)savedState;
}
#endregion