Question

I have a DataTable with one of the column is checkbox. I can select multiple checkboxes.
now on click of button i want to get row ids of selected checkboxes. Once the ajax operation is done
on click of button, i want to select the checkboxes again for the above row ids. Basically
how to get the checked row ids and then check the checkboxes again?

Answer 1

Assuming each checkbox has the RowId as his value attribute.

Get all the selected checkboxes:

var selectedIds = [];

$(":checked").each(function() {
    selectedIds.push($(this).val());
});

Re-check the checkboxes:

$.each(selectedIds, function(index, id) {
    $(":checkbox[value='" + id + "']").prop("checked", true);
});