<div class='input-group date datePickerSize' id='datetimepicker1'>
            @Html.TextBox("updateStartDate", null, new { @class = "form-control",@onkeydown="return false", placeholder = "Date From" })
            <span class="input-group-addon add-on">
                <span class="glyphicon glyphicon-calendar"></span>
            </span>
        </div>
        <div class='input-group date datePickerSize' id='datetimepicker2'>
            @Html.TextBox("updateEndDate", null, new { @class = "form-control",@onkeydown="return false", placeholder = "Until" })
            <span class="input-group-addon add-on">
                <span class="glyphicon glyphicon-calendar"></span>
            </span>
        </div>