Web Core Continuous Scroll OnFetchNextPage vs CreateForm

WEB TMS WEB Core
1

Hello,

The OnFetchNextPage event of the Continuous Scroll component works before the OnCreate event of the form, is this normal? I got a case where I need to show data according to a certain condition.

Assume I got two forms. The first form contains two buttons, the second form contains a continuous scroll. The user ends up in the second form if either one of the buttons is clicked. According to the button that is clicked, I have to load the continuous scroll with a particular ItemTemplate. I can't feed the ItemTemplate in the OnCreate event of the second form, because the OnFetchNextPage event reacts quicker. What I do now is just feed the ItemTemplate in the OnFetchNextPage event. But because this event can be triggered so many times, I fear that this will result in unnecessary performance drops.

Is this the right way to do it, or is there another way?

Kind Regards.

2

Hi,

Have you tried setting TWebContinuousScroll.AutoLoadFirstPage to False? This will prevent the automatic first fetch to trigger. Then in the OnCreate event you could do something similar to:

procedure TForm1.MiletusFormCreate(Sender: TObject);
begin
  WebContinuousScroll1.ItemTemplate := 'my template';
  WebContinuousScroll1.FetchNextPage;
end;