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Model Binding in Razor Pages

This article deals with the model binding of the Razor Pages of the ASP.NET Core platform.

PageModel

PageModel is a feature of ASP.NET Core that is used to make possible the separation of concerns between the UI layer and the data logic layer directly with a code-behind file without the controller.

PageModel Class

The PageModel class is declared in a separate file and the About.cshtml PageModel file is named as About.cshtml.cs in the same namespace.

RazorPage Project

The PageModel classes will be named as the view file name with “Model” as a suffix. The PageModel class for About.cshtml will be called AboutModel.

PageModel Class

Defining Model in PageModel Class

Declare the data property as public property in PageModel class of the Razor Page which is illustrated below.

    //PageModel Class
    public class AboutModel : PageModel
    {
        //Input Date for Calendar
        public DateTime? Date { get; set; } = new DateTime();
        //Default value for DropDown List
        public String Game { get; set; } = "American Football";
        public void OnGet()
        {   
        }
    }

Referring PageModel in Razor Page

The PageModel class is made available to the view file via the @model directive to link the information in the PageModel to Syncfusion EJ2 ASP.NET Core Components. The code block below looks like the Razor View file, except for the @page directive. The @page Directive allows the MVC action to process the request directly without going through the controller. @Page is supposed to be the first directive on the page.

@*Referring required directives*@
@page
@model IndexModel
@using RazorPagesApp.Pages
@{
    ViewData["Title"] = "Home page";
}

<ejs-timepicker id="timepicker" ejs-for="@Model.Date" name="value"></ejs-timepicker>

<ejs-autocomplete id="games"  dataSource="@DataSource.GamesData" ejs-for="@Model.Game"placeholder="e.g. Basketball"></ejs-autocomplete>