Menu in Razor Pages
This article describes how to seamlessly integrate and configure the Telerik UI Menu for ASP.NET Core in Razor Pages applications.
You can use any of the available data binding approaches to bind the component to data in a Razor Pages application.
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 theOnPostReadorOnGetReadhandler method in theIndex.cshtml.csfile. -
Using a query string
C#Url("/PathToPage?handler=HandlerName")For example,
Url("/Index?handler=Read")references theOnPostReadorOnGetReadhandler method in theIndexpage.
For more information on Razor Pages architecture and concepts, refer to the official Microsoft documentation.
Binding to Remote Data
In order to set up the Menu component bindings, you need to configure the Read method of its DataSource instance. The URL must refer to the method name in the PageModel. To pass additional parameters through the Read request, such as antiforgery token, specify a JavaScript handler in the Data() option.
@page
@model IndexModel
@inject Microsoft.AspNetCore.Antiforgery.IAntiforgery Xsrf
@Html.AntiForgeryToken()
@(Html.Kendo().Menu()
.Name("navMenu")
.DataTextField("Name")
.DataSource(ds => ds
.Read(r => r
.Url(Url.Page("Index", "Read")).Data("dataFunction")
)
.Model(model => model.Children("Products")))
)
<script>
function dataFunction() {
return kendo.antiForgeryTokens();
}
</script>For the complete project, refer to the Menu in Razor Pages example.