DataTables selected rows data-attribute

Question

I've got datatables set up nicely and with the select extension - I have this code for when someone uses a "report" and it loads another page using some cell content from the table to pass to the report. That works fine, however - I need to be able to pass a data-element of each <tr> of the table instead of the row data...

This is my current code:

var table = $('#table_search_project').DataTable();

//then re-run the code to get the selected rows
var id_list = $.map(table.rows('.selected').data(), function (item) {
    return item[1]
});

So you can see, I used to use item[1] to return, but I really want to be able to get the <tr> object so I can retrieve the data-something-id property (but I don't want to show it - hence the issue)

Chris · Accepted Answer · 2017-08-08 08:53:51Z

17

I worked it out. Too hasty to ask in SO!

I used this instead:

var id_list = $.map(table.rows('.selected').nodes(), function (item) {
    return $(item).data("entity-id");
});

The nodes() collection sends me back the <tr> elements instead of the data. Exactly what I wanted. Found the information here:

https://datatables.net/reference/api/row().node()

answered Aug 8, 2017 at 8:53

Chris

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3 Comments

tim Over a year ago

Awesome, very useful. Sometimes it's pretty tricky to find exactly how to use the pretty complex data model of DT, nodse(), node(), $(this), data() etc... This was the right combination!

Neel Over a year ago

Tried this but finally had to change it the last line to target attr to get it to work return $(item).attr("data-id"). Still very useful

Chris Over a year ago

.data() has been in jQuery since 1.2.3 - what version are you running?

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