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Maybe Off Topic, but I am curious...

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Joe asked on 22 Dec 2016, 04:22 PM

I have created a few HtmlHelper extension methods that we use is different projects at my company, but they've usually been single level type of method calls, with a variable list of parameters. But how does Kendo create the HTML Helpers such as those found in the Telerik MVC collection, with nested method calls?

For example, I've easily create a razor helper that parses a session variable for Claim data, and return the appropriate claim value based on the type. Such as

@{

ViewBag.Title = "Vensure.Dashboard.App";

string FullName = Html.GetClaimValue("fullname");

bool isAdmin = Html.GetClaimValue("app-roles").Contains("admin");

}

But the Kendo components typically have multiple methods extending the initial method. Such as:

@(Html.Kendo().DropDownList()

.Name("availableClients")

.DataTextField("ClientName")

.DataValueField("ClientId")

.DataSource(ds => ds.Read("GetClientList", "Mapping"))

.Template("<span class=\"k-state-default\">#: data.ClientId # - #: data.ClientName #</span>")

.ValueTemplate("<span class=\"selected-value\">#:data.ClientId# - #:data.ClientName#</span>")

.HtmlAttributes(new { style = "width: 100%" })

.Events(e => e.Change("clientChange"))

.OptionLabel(" -- Select Client --")

.Height(400)

)

I'm just curious as to what the HtmlHelper extension code looks like to support the .Method().OtherMethod().YetAnotherMethod() nested syntax...

Maybe Off Topic, but I am curious...

2 Answers, 1 is accepted