Create small single page Web API without MVC?

Question

I have a limitation to one .aspx file and corresponding script file in C#.

I don't know how to use these WebMethods to achieve something like this:

Request Header: "http://localhost:8888/singlepage.aspx/file/8/items",
Type: "POST",
Data: {Description,Price}

Is it even possible without MVC?

Answer 1

You can use ASP.NET AJAX Page Methods to create page-hosted web service methods, like this:

[WebMethod]
public static void SaveDescriptionAndPrice(string description, decimal price)
{
    // Do something here to save values
}

Now in your .aspx page, you can invoke the ASP.NET AJAX Page Method by using the jQuery .ajax() function, like this:

$(document).ready(function() {
    $.ajax({
        type: "POST",
        url: "singlepage.aspx/SaveDescriptionAndPrice",
        data: "{'description':'This is a fake description.', 'price':12.99}",
        contentType: "application/json; charset=utf-8",
        dataType: "json",
        success: function(data) {
            // Do something interesting here.
        }
    });
});

Note: I hard-coded the values for the data, but you can create a JavaScript object to hold the values and stringify() them or use jQuery to select the values from DOM elements.