Data Grid - Horizontal Virtual Scrolling

Horizontal virtual scrolling improves the rendering performance because the DataGrid only renders columns that are in the viewpoint. To enable this feature, set the scrolling.columnRenderingMode property to "virtual".

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Backend API

@(Html.DevExtreme().DataGrid() .ID("grid") .Scrolling(scrolling => scrolling.ColumnRenderingMode(GridColumnRenderingMode.Virtual)) .Paging(paging => paging.Enabled(false)) .DataSource(d => d.WebApi().Controller("DataGridHorizontalScrolling").Key("field1")) .ColumnWidth(100) .ShowBorders(true) )

using DevExtreme.MVC.Demos.Models; using DevExtreme.MVC.Demos.Models.DataGrid; using DevExtreme.MVC.Demos.Models.SampleData; using System; using System.Linq; using System.Web.Mvc; namespace DevExtreme.MVC.Demos.Controllers { public class DataGridController : Controller { public ActionResult HorizontalVirtualScrolling() { return View(); } } }

using DevExtreme.AspNet.Data; using DevExtreme.AspNet.Mvc; using System; using System.Collections.Generic; using System.Net.Http; using System.Web.Http; namespace DevExtreme.MVC.Demos.Controllers.ApiControllers { public class DataGridHorizontalScrollingController : ApiController { [HttpGet] public HttpResponseMessage Get(DataSourceLoadOptions loadOptions) { return Request.CreateResponse(DataSourceLoader.Load(GenerateData(50, 500), loadOptions)); } IEnumerable<object> GenerateData(int rowCount, int columnCount) { for(var i = 0; i < rowCount; i++) { var item = new Dictionary<string, object>(); for(var j = 0; j < columnCount; j++) { item[string.Format("field{0}", j + 1)] = string.Format("{0}-{1}", i + 1, j + 1); } yield return item; } } } }

#grid { max-height: 440px; }