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issue is that your columns array needs to be

Hi, Can this code work directly or I need to use specific syntax? Cause it's not displaying a button even if change the 0 to other value... table.button().add( 0, { extend: 'colvis', collectionLayout: 'two-column', columns: ':visible', } );

decrease the number of columns when open by mobile

The better way is to use columns().nodes() rather than picking out the cells yourself. You can still pass in the search 'applied' into columns(). Would you mind posting the code you are using? Thanks Tom

but I want to edit columns that are not displayed on the DataTable. Is that possible? Yes - example available here. Allan

If you want to dynamically change the visibility or order of columns, use https://datatables.net/reference/option/columns.visible and https://datatables.net/reference/api/colReorder.order()

following $('#example'String).DataTable( { data: ar1.data, columns: [ { data: "first_name" }, { data: "last_name"},

this: $("#grdScarti").dataTable({ data: arRow, columns: function () { for (x = 0;

Does your server-side script take account of the fact that the columns have changed position and therefore their indexes will have changed? Allan

to fixed header and columns.