How to add and remove columns in datatable.net C#

Hi,

Please try below code.

table.columns(dtableCols).visible(false);

Where dtableCols is an array of all column ids. eg: [0,1,2,3,4,5]

Or

Use class name assigned to th element in table header (col-hide in my example) in targets option (without the leading dot .) to target certain columns and visible option to make these columns hidden.

"columnDefs": [
    { targets: "col-hide", visible: false }   
]

for instance

$('#example').DataTable( {
    "responsive": true,
    "columnDefs": [
        { targets: "col-hide", visible: false }   
    ]
} );

for demo refer jsfiddle