单击特定行内的按钮时获取行值

Question

I have a datatable where I add a new row when a button is clicked. In that row I have a button , by clicking that I need to get the clicked row values. i have tried with this code, where it dosen't fire.

$(".add-beneficiary").click(function (e) {
    e.preventDefault();
    alert("Button Clicked");
});

This code is to add the textbox in the table when clicking the add row (this works perfect)

$('#addRow').on('click', function () {
    debugger;  
    ctr++;
    var _beneficiaryname = "_beneficiaryname" + ctr;
    var _beneficiarytype = "_beneficiarytype" + ctr;
    var _beneficiarypercent = "_beneficiarypercent" + ctr;
    var _addbtn = "_addbtn" + ctr;
    var newTr = '<tr><td><input type="text" class="nr" id=' + _beneficiaryname + ' /></td><td><select class="form-control relationshiptype"  id=' + _beneficiarytype + '>' + selectoption + '</select> </td><td><input type="text" id=' + _beneficiarypercent + ' /></td><td> <button type="submit" class="btn btn-primary add-beneficiary" id=' + _addbtn + ' >Add Beneficiary</button></td></tr>';
     //<td><div class=ibox-tools><a class=dropdown-toggle data-toggle=dropdown href=#><i class=fa fa-wrench></i></a><ul class=dropdown-menu dropdown-user><li><a href=# onclick=AddBeneficiaryFunction()>Add</a></li></ul></div></td>
     $('#jsontable').append(newTr);
 });

I don't know how to get the row value?

Answer 1

if you just need html of the tr of the button that was clicked try the following:

$('#jsontable').on('click', '.btn', function()
{
    alert($(this).closest('tr').html());

});

if you need value of the input clicked:

$('#jsontable').on('click', '.btn', function()
{
    alert($(this).closest('tr').find('.nr').val());

});

I hope you got the idea? For generated buttons you need specify additionally button identifier on click action, and selector must be "stable(not generated)" DOM element. Like already people said it is called event delegation.

http://jsfiddle.net/mhsxchf7/ - demo