Breadcrumb in Razor Pages
This article describes how to seamlessly integrate and configure the Telerik UI Breadcrumb 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 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 Local Data
The following example demonstrates how to bind the Breadcrumb to a collection of items defined in the PageModel.
@page
@model BreadcrumbIndexModel
@inject Microsoft.AspNetCore.Antiforgery.IAntiforgery Xsrf
@Html.AntiForgeryToken()
@(Html.Kendo().Breadcrumb()
.Name("breadcrumb")
.Items(items =>
{
foreach(var item in Model.Items)
{
items.Add()
.Type(item.IsRoot == true ? BreadcrumbItemType.RootItem : BreadcrumbItemType.Item)
.Href(item.Href)
.Text(item.Text)
.Icon(item.Icon)
.ShowText(true);
}
})
.Editable(true)
)For the complete project, refer to the Breadcrumb in Razor Pages example.