Friday 21st June, 2019
By Colin Marks

Scroll To Top

By default, the paging controls of a DataTable (the Next, Previous and page number buttons) are placed beneath the table. If you have a large number of rows which won't fit on a single page, when the page is changed, the user has to scroll up to the top to see the first few rows. In this blog post I introduce a very simple feature plug-in called scrollToTop which, when enabled will, automatically scroll to the head of the table whenever the page is changed.

An example is shown below. Scroll down to the paging button and click one to see it in action.

NamePositionOfficeSalary
Tiger NixonSystem ArchitectEdinburgh$320,800
Garrett WintersAccountantTokyo$170,750
Ashton CoxJunior Technical AuthorSan Francisco$86,000
Cedric KellySenior Javascript DeveloperEdinburgh$433,060
Airi SatouAccountantTokyo$162,700
Brielle WilliamsonIntegration SpecialistNew York$372,000
Herrod ChandlerSales AssistantSan Francisco$137,500
Rhona DavidsonIntegration SpecialistTokyo$327,900
Colleen HurstJavascript DeveloperSan Francisco$205,500
Sonya FrostSoftware EngineerEdinburgh$103,600
Jena GainesOffice ManagerLondon$90,560
Quinn FlynnSupport LeadEdinburgh$342,000
Charde MarshallRegional DirectorSan Francisco$470,600
Haley KennedySenior Marketing DesignerLondon$313,500
Tatyana FitzpatrickRegional DirectorLondon$385,750
Michael SilvaMarketing DesignerLondon$198,500
Paul ByrdChief Financial Officer (CFO)New York$725,000
Gloria LittleSystems AdministratorNew York$237,500
Bradley GreerSoftware EngineerLondon$132,000
Dai RiosPersonnel LeadEdinburgh$217,500
Jenette CaldwellDevelopment LeadNew York$345,000
Yuri BerryChief Marketing Officer (CMO)New York$675,000
Caesar VancePre-Sales SupportNew York$106,450
Doris WilderSales AssistantSidney$85,600
Angelica RamosChief Executive Officer (CEO)London$1,200,000
Gavin JoyceDeveloperEdinburgh$92,575
Jennifer ChangRegional DirectorSingapore$357,650
Brenden WagnerSoftware EngineerSan Francisco$206,850
Fiona GreenChief Operating Officer (COO)San Francisco$850,000
Shou ItouRegional MarketingTokyo$163,000
Michelle HouseIntegration SpecialistSidney$95,400
Suki BurksDeveloperLondon$114,500
Prescott BartlettTechnical AuthorLondon$145,000
Gavin CortezTeam LeaderSan Francisco$235,500
Martena MccrayPost-Sales supportEdinburgh$324,050
Unity ButlerMarketing DesignerSan Francisco$85,675
Howard HatfieldOffice ManagerSan Francisco$164,500
Hope FuentesSecretarySan Francisco$109,850
Vivian HarrellFinancial ControllerSan Francisco$452,500
Timothy MooneyOffice ManagerLondon$136,200
Jackson BradshawDirectorNew York$645,750
Olivia LiangSupport EngineerSingapore$234,500
Bruno NashSoftware EngineerLondon$163,500
Sakura YamamotoSupport EngineerTokyo$139,575
Thor WaltonDeveloperNew York$98,540
Finn CamachoSupport EngineerSan Francisco$87,500
Serge BaldwinData CoordinatorSingapore$138,575
Zenaida FrankSoftware EngineerNew York$125,250
Zorita SerranoSoftware EngineerSan Francisco$115,000
Jennifer AcostaJunior Javascript DeveloperEdinburgh$75,650
Cara StevensSales AssistantNew York$145,600
Hermione ButlerRegional DirectorLondon$356,250
Lael GreerSystems AdministratorLondon$103,500
Jonas AlexanderDeveloperSan Francisco$86,500
Shad DeckerRegional DirectorEdinburgh$183,000
Michael BruceJavascript DeveloperSingapore$183,000
Donna SniderCustomer SupportNew York$112,000

Usage

To use the scrollToTop plug-in, first include its JavaScript on your page:

JS

Then enable it by specifying the scrollToTop option in your DataTables initialisation:

$('#myTable').DataTable({
    scrollToTop: true
});

Implementation

The actual action of moving the scroll position is very simple! It listens for the draw event, and moves the scroll position of the document to show the top of the table container:

api.on('page', function() {
    setTimeout(function() {
        $(document).scrollTop(
            $(api.table().container()).offset().top
        );
    }, 10);
});

As always, please post any support questions in the forum, or if you have improvement suggestions for this script comment below. Likewise, let us know if you'd like to see any specific plug-ins developed in future!