How to multiply 2 numbers in appended row in MVC

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Dear Friends,

I need to multiply 2 input box values in grid and shows result in 3rd input box. am using class for keypress event.

It works on grid. but when i add rows and append rows to grid that input box keypress didn't works.

Grid textbox like this: @Html.TextBox("Qty_Req_" + (int)item.Id, (decimal)item.QtyRequested, new {@class="QtyReq", @style = "display:none" }

Thanks & Regards,
Vivek .R
Software Engineer.

What I have tried:

Add row or Append :

var tr = ' <input id="' + Item_Name + '" type="text" class="ItemName ItemNames" /><button id="btnOk" type="button" class="btn btn-primary btn-xs">..</button>' +
' <input id="' + ItemR_Code + '" type="text" class="IRCode" />' +
' <input id="' + Item_Code + '" type="text" class="ItemCode" disabled="disabled"/>' +
' <input id="' + Unit_Price + '" type="text" class="UnitPrice" disabled="disabled"/>' +
' <input id="' + Qty_Req + '" type="text" class="QtyReq" />' +
' <input id="' + Total + '" type="text" class="Total" disabled="disabled" />' +
' Save Cancel' +
'';

$("#grid tbody").append(tr);

javascript:

JavaScript

$('input[class="QtyReq"]').keyup(function () {
       $(this).addClass('selected').siblings().removeClass('selected');
       var unitprice = $(this).closest("tr").find('.UnitPrice');
       var qtyreq = $(this).closest("tr").find('.QtyReq');
       var total = $(this).closest("tr").find('.Total');
       total.val(unitprice.val() * qtyreq.val());

   });

Posted 24-Nov-16 23:13pm

Vivek.anand34

Updated 24-Nov-16 23:22pm

v3

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F-ES Sitecore · Accepted Answer · 2016-11-24T23:22:00

Solution 1

When your code to bind the keyup event is ran it only attaches to the inputs that exist at that time, any inputs you add later will not have the required events attached. The easiest way to get around this is to you "delegated events" via the "on" method as these will also work for items you add later. The link below explains with examples.

.on() | jQuery API Documentation[^]

Posted 24-Nov-16 23:22pm

F-ES Sitecore

Comments

Vivek.anand34 25-Nov-16 5:46am

Ya.. Thank you.. I used like this. its executed....

$("table").delegate(".QtyReq", "keyup", function () {
$(this).addClass('selected').siblings().removeClass('selected');
var unitprice = $(this).closest("tr").find('.UnitPrice');
var qtyreq = $(this).closest("tr").find('.QtyReq');
var total = $(this).closest("tr").find('.Total');
total.val(unitprice.val() * qtyreq.val());
});