javascript - I can't find all TR tags in a datatable

Question

My dom is simply defined as:

sDom: 't',

My datatable name is:

dataTable: "#mainTable",

and I'm trying to find all TR tags in that datatable by using this jQuery selector:

var trs = $('#mainTable').children('tr');

But for some reason when I call the below code I get "0":

alert(trs.length);

Would anyone know why?

score 4 · Accepted Answer

要访问表中的行，您必须使用 datatables 函数：[datatable_object].$([selector])

//Create datatable
var trs = $('#mainTable').dataTable();

//Get all rows from the trs table object.
var rows = trs.$("tr");

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