Display a Password Entry Box and get the input
<Window x:Class="WpfApplication1.Window1" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="WPF" Height="100" Width="300"> <StackPanel Orientation="Horizontal"> <TextBlock Margin="5" VerticalAlignment="Center"> Enter Password: </TextBlock> <PasswordBox Name="passwordBox" PasswordChar="!" VerticalAlignment="Center" Width="150" /> <Button Content="OK" IsDefault="True" Margin="5" Name="button1" VerticalAlignment="Center" Click="button1_Click" /> </StackPanel> </Window> //File:Window.xaml.vb Imports System.Windows Namespace WpfApplication1 Public Partial Class Window1 Inherits Window Public Sub New() InitializeComponent() End Sub Private Sub button1_Click(sender As Object, e As RoutedEventArgs) MessageBox.Show("Password entered: " + passwordBox.Password, Title) End Sub End Class End Namespace