@Html.TextBoxFor(m => m.EndDate, new {
  @class = "disableFuturedate", @readonly = "readonly", @data_uk_datepicker = "{format: 'DD/MM/YYYY'}"
})

and also write into script

var currentDate = new Date();
$('.disableFuturedate').datepicker({
  maxDate: currentDate
}).on('changeDate', function(ev) {
  $(this).datepicker('hide');
});
$('.disableFuturedate').keyup(function() {
  if (this.value.match(/[^0-9]/g)) {
    this.value = this.value.replace(/[^0-9^-]/g, '');
  }
});