How to remove auto fill text in textbox

Question

What I have tried: I tried many things, still have the problem. tried code behind ::

txtSEmail.Attributes.Add("autocomplete", "false");

 

and jquery ::

$(document).ready(function () {

$('#txtSEmail').attr('autocomplete', 'off');

});

 

and server side ::

<asp:TextBox ID="txtSEmail" runat="server" Width="175px" class="txtBox" autocomplete="off">

or

 

<asp:TextBox ID="txtSEmail" runat="server" Width="175px" class="txtBox" AutoCompleteType="Disabled">

 

but my page call master page

 

Is there any other solution for this problem?