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ScrollView in Razor Pages

Razor Pages is an alternative to the MVC pattern that makes page-focused coding easier and more productive. This approach consists of a cshtml file and a cshtml.cs file (by design, the two files have the same name).

You can seamlessly integrate the Telerik UI ScrollView for ASP.NET Core in Razor Pages applications.

This article describes how to configure the ScrollView component in a Razor Pages scenario.

For the complete project, refer to the ScrollView in Razor Pages example.

Getting Started

The DataSource component offers the most versatile data binding approach. To connect the ScrollView to a data set retrieved from a remote endpoint in a Razor Pages application, proceed with the following steps:

  1. Specify the Read request URL in the DataSource configuration. The URL must refer to the method name in the PageModel.

    HtmlHelper_Index.cshtml
        @page
        @model IndexModel
    
        <div id="example" style="margin:auto; width:60%">
            @(Html.Kendo().ScrollView()
                .Name("scrollView")
                .ContentHeight("100%")
                .TemplateId("scrollview-template")
                .DataSource(source => source
                    .Ajax()
                    .Read(r => r.Url("/Index?handler=ReadOptional").Data("forgeryToken"))
                    .PageSize(3)
                )
                .HtmlAttributes(new { style = "height:500px; width:890px; max-width: 100%;" })
            )
        </div>
  2. Add an AntiForgeryToken at the top of the page.

    C#
        @inject Microsoft.AspNetCore.Antiforgery.IAntiforgery Xsrf
        @Html.AntiForgeryToken()
  3. Send the AntiForgeryToken ith the Read request.

    JS
        <script>
            function forgeryToken() {
                return kendo.antiForgeryTokens();
            }
        </script>

    Additional parameters can also be supplied.

    JS
        <script>
            function forgeryToken() {
                return {
                    __RequestVerificationToken: kendo.antiForgeryTokens().__RequestVerificationToken,
                    additionalParameter: "test"
                }
            }
        </script>
  4. Within the cshtml.cs file, add a handler method for the Read operation that returns the dataset.

    Index.cshtml.cs
    
        public static List<Product> ScrollViewItems { get; set; }
        
        public void OnGet()
        {
            if (ScrollViewItems == null)
            {
                // Populate the "ScrollViewItems" collection with data.
                ScrollViewItems = new List<Product>();
    
                ScrollViewItems.Add(new Product { ImageUrl = "image1.jpg", ProductName = "Chai" });
                ScrollViewItems.Add(new Product { ImageUrl = "image2.jpg", ProductName = "Chang" });
                ScrollViewItems.Add(new Product { ImageUrl = "image3.jpg", ProductName = "Aniseed Syrup" });
                ScrollViewItems.Add(new Product { ImageUrl = "image4.jpg", ProductName = "Ikura" });
                ScrollViewItems.Add(new Product { ImageUrl = "image5.jpg", ProductName = "Tofu" });
                ScrollViewItems.Add(new Product { ImageUrl = "image6.jpg", ProductName = "Konbu" });
                ScrollViewItems.Add(new Product { ImageUrl = "image7.jpg", ProductName = "Pavlova" });
                ScrollViewItems.Add(new Product { ImageUrl = "image8.jpg", ProductName = "Cloud" });
                ScrollViewItems.Add(new Product { ImageUrl = "image9.jpg", ProductName = "Sun" });
            }
        }
    
        public JsonResult OnPostReadOptional([DataSourceRequest] DataSourceRequest request)
        {
            return new JsonResult(ScrollViewItems.ToDataSourceResult(request));
        }

See Also

In this article
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