Stepper in Razor Pages

This article describes how to seamlessly integrate and configure the Telerik UI Stepper for ASP.NET Core in Razor Pages applications.

Referencing Handler Methods 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 convention, the two files have the same name).

The cshtml.cs file, known as the PageModel, contains handler methods that respond to HTTP requests. These methods are prefixed with On followed by the HTTP verb (for example, OnGet, OnPost, OnPostRead, OnPostCreate).

Handler methods declared in a PageModel can be referenced from any Razor Page using one of the following URL patterns:

• Using Url.Page()

  C#

  Url.Page("PageName", "HandlerName")
  // OR
  Url.Page("/FolderName/PageName", "HandlerName")

  For example, Url.Page("Index", "Read") references the OnPostRead or OnGetRead handler method in the Index.cshtml.cs file.

• Using a query string

  C#

  Url("/PathToPage?handler=HandlerName")

  For example, Url("/Index?handler=Read") references the OnPostRead or OnGetRead handler method in the Index page.

For more information on Razor Pages architecture and concepts, refer to the official Microsoft documentation.

Configuring Appearance from PageModel

The following example demonstrates how to configure the Stepper appearance based on properties from the PageModel.

@page
@model StepperIndexModel

@inject Microsoft.AspNetCore.Antiforgery.IAntiforgery Xsrf
@Html.AntiForgeryToken()

@(Html.Kendo().Stepper()
    .Name("stepper")
    .Orientation(StepperOrientationType.Horizontal)
    .Label(Model.Label)
    .Indicator(Model.Indicator)
    .Steps(s =>
    {
        s.Add().Label("First");
        s.Add().Label("Second").Selected(true);
        s.Add().Label("Third");
        s.Add().Label("Fourth");
        s.Add().Label("Fifth");
    })
)

@page
@model StepperIndexModel

@inject Microsoft.AspNetCore.Antiforgery.IAntiforgery Xsrf
@Html.AntiForgeryToken()

<kendo-stepper name="stepper" 
    orientation="StepperOrientationType.Horizontal"
    label="@Model.Label"
    indicator="@Model.Indicator">
    <steps>
        <step label="First"></step>
        <step label="Second" selected="true"></step>
        <step label="Third"></step>
        <step label="Fourth"></step>
        <step label="Fifth"></step>
    </steps>
</kendo-stepper>

public class StepperIndexModel : PageModel
{ 	
	public bool Label { get; set; }
    public bool Indicator { get; set; }

    public void OnGet()
    {            
        Label = true;
        Indicator = false;
    }
}

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

See Also

• Using Telerik UI for ASP.NET Core in Razor Pages
• Client-Side API of the Stepper
• Server-Side HtmlHelper API of the Stepper
• Server-Side TagHelper API of the Stepper
• Knowledge Base Section