password reset

Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load
    ' Call JavaScript function to clear password field
    ClientScript.RegisterStartupScript(Me.GetType(), "ClearPassword", "ClearPasswordField();", True)
End Sub

In VB.NET, you can achieve this by utilizing JavaScript to clear the password field when the page loads and preventing the browser from autofilling the saved credentials. Add a JavaScript function to clear the password field

Add the JavaScript function to your ASPX page or include it in a separate JavaScript file

Set the AutoCompleteType attribute of the password textbox to Disabled, instructing the browser not to autocomplete the password field. Add the below script to Page_load

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
    If Not IsPostBack Then
        ' Register JavaScript to clear password field on page load
        Dim clearPasswordScript As String = ""
        ClientScript.RegisterStartupScript(Me.GetType(), "ClearPasswordField", clearPasswordScript)
    End If
End Sub

its working.
but i select again username password is get filled because save on browser.

If Not IsPostBack Then
            ' Clear the password field when the page loads
            txtPassword.Text = String.Empty
        End If

VB.net code will clear the text box. why JS. please refer the snippet which i send before.

JS is also try to clear textbox value nothing else

i dont understand what is the need of this javascript function. please share the logic of the javascript.

the same is working for me. 

                                                        placeholder="Password" MaxLength="30" CssClass="form-control" TabIndex="2" autocomplete="new-password" >

already added still not work

include this snippet in the front end code.

check this as the addition of autocomplete="new-password" to the password TextBox, this attribute helps prevent browsers from automatically filling in the password field.

password text box is not clearing.
Actually password is saved on browser .

i also use javascript

this is not working..

Imports System

Public Class Login
    Inherits System.Web.UI.Page

    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        If Not IsPostBack Then
            ' Clear the password field when the page loads
            txtPassword.Text = String.Empty
        End If
    End Sub

    Protected Sub btnLogin_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btnLogin.Click
        ' Your login logic here
    End Sub
End Class

Kindly follow this code in the backend will resolve your issue.