please explain the code in the

please explain the code in the ArticleListing.cs and ProductListing.cs

private bool _showDepartmentPicker = true;
      public bool ShowDepartmentPicker
      {
         get { return _showDepartmentPicker; }
         set
         {
            _showDepartmentPicker = value;
            ddlDepartments.Visible = value;
            lblDepartmentPicker.Visible = value;
            lblSeparator.Visible = value;
         }
      }



 protected override void LoadControlState(object savedState)
      {
         object[] ctlState = (object[])savedState;
         base.LoadControlState(ctlState[0]);
        this.ShowDepartmentPicker = (bool)ctlState[1];
         this.ShowPageSizePicker = (bool)ctlState[2];
         this.EnablePaging = (bool)ctlState[3];
      }

      protected override object SaveControlState()
      {
         object[] ctlState = new object[4];
         ctlState[0] = base.SaveControlState();
         ctlState[1] = this.ShowDepartmentPicker;
         ctlState[2] = this.ShowPageSizePicker;
         ctlState[3] = this.EnablePaging;
         return ctlState;
}

I can not understand what set value to the Properties

           _showDepartmentPicker = value;
            ddlDepartments.Visible = value;
            lblDepartmentPicker.Visible = value;
            lblSeparator.Visible = value;




 and when it is. 
 sorry for the English
  thank you very much

Re: please explain the code in the

1) ShowDepartmentPicker

if you call ShowDepartmentPicker=true then it will make 3 controls visible, if ShowDepartmentPicker=false - all 3 controls will be hidden.

2, 3) Both methods LoadControlState and SaveControlState take arrays of type object and load values to appropriate variables/properties.

Re: please explain the code in the

Very thanks