如何在ASP.NET MVC中统计动态生成的控件

Question

I have a form in a ASP.NET Mvc application, where one clicking an add button, a new set of controls - a dropdownlistfor and textbox is generated from the original. On clicking on submit, data values from some of the controls are passed via WebAPI to the DB while other values are used to generate a PDF using the iTextSharp library.

How can I count the number of dropdownlists and textboxes generated, for a specific feature, eg the 6 controls you see in the image ?

Answer 1

How can I count the number of dropdownlists and textboxes generated,

Normally, you could use array, and default model binder could bind it for you. Please make sure controls ids are unique. For example, id="Unit_0" name="Unit[0]"

public class SampleViewModel
{
    public string[] Stock { get; set; }
    public string[] Unit { get; set; }
}

Answer 2

on click/submit (in jQuery)

    $('select').each(function(){

    //count your dropdown here

    });

    $('input[type=textbox]').each(function(){

    //count your textbox here

    })