在数据表的新行中添加按钮，未定义

Question

I have a javascript object, Im trying to add a new row to the datatable. One column is a field and the other column should contain a button.

var appendLastCategory = function() {
    var obj = {
        id: 'jh2i4h34ubi43',
        name: 'Lolo',
    };
    $('#categoriesList').DataTable().row.add({
        name: obj.name, //First column
        mRender: function() { //Second column
            return "<a class='md-btn' onClick='deleteCategory(this, &quot;" + obj.id + "&quot;)'>Delete</a>";
        }
    }).draw();
};

Then when I click in the "Delete" button, Im getting 'undefined' in the 'id' value. And I don't know why, because when I initialize the table filling it with the initial data and using the 'mRender' mostly the same way, it works.

var deleteCategory = function(element, id) {
    console.log(id);
    //Blah blah, all the code to delete on backend and remove the row
};

Answer 1

I hope this could help:

 var deleteCategory = function(element, id) { alert(id); //Blah blah, all the code to delete on backend and remove the row }; var appendLastCategory = function () { var obj = { id: 'jh2i4h34ubi43', name: 'Lolo', }; $('#categoriesList').DataTable().row.add({ '0': obj.name, //First column '1': "<a href='#' class='btn btn-info' role='button' onClick='deleteCategory(this, &quot;" + obj.id + "&quot;)'>Delete</a>", }).draw(); }; $(function () { appendLastCategory(); }); 

 <script src="http://code.jquery.com/jquery-1.12.1.min.js"></script> <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" integrity="sha384-1q8mTJOASx8j1Au+a5WDVnPi2lkFfwwEAa8hDDdjZlpLegxhjVME1fgjWPGmkzs7" crossorigin="anonymous"> <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js" integrity="sha384-0mSbJDEHialfmuBBQP6A4Qrprq5OVfW37PRR3j5ELqxss1yVqOtnepnHVP9aJ7xS" crossorigin="anonymous"></script> <link href="http://cdn.datatables.net/1.10.11/css/jquery.dataTables.min.css" rel="stylesheet"> <script src="http://cdn.datatables.net/1.10.11/js/jquery.dataTables.min.js"></script> <table id="categoriesList" class="display" cellspacing="0" width="100%"> <thead> <tr> <th>name</th> <th>button</th> </tr> </thead> <tfoot> <tr> <th>name</th> <th>button</th> </tr> </tfoot> <tbody> <tr> <td>Tiger Nixon</td> <td>Tiger Nixon</td> </tr> <tr> <td>Garrett Winters</td> <td>Tiger Nixon</td> </tr> <tr> <td>Ashton Cox</td> <td>Tiger Nixon</td> </tr> </tbody> </table> 

Answer 2

Thanks for the response! I have resolved.

To initialize the DataTable, this is the following code:

var datax = [{
      id: '67i67i634r2r',
      name: 'Lala',
   },{
      id: 'g45y45y657t3',
      name: 'Lele',
   }];
$('#categoriesList').DataTable({
    "data": datax,
    "columns": [
        { data: "name" }, {
            render: function(o, type, data) {
                return "<a class='md-btn' onClick='deleteCategory(this, &quot;" + data.id + "&quot;)'>Delete</a>";
            }
        }
    ]
});

At the final everything got resolved just adding the javascript object in this way. Hope this will help more people.

var appendLastCategory = function () {
   var obj = {
      id: 'jh2i4h34ubi43',
      name: 'Lolo',
   };
   $('#categoriesList').DataTable().row.add(obj).draw();
};