■ PasswordBox 클래스의 PasswordChanged 이벤트를 사용하는 방법을 보여준다.
▶ MainPage.xaml
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<?xml version="1.0" encoding="utf-8"?> <Page x:Class="TestProject.MainPage" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Background="{ThemeResource ApplicationPageBackgroundThemeBrush}" FontFamily="나눔고딕코딩" FontSize="16"> <StackPanel HorizontalAlignment="Center" VerticalAlignment="Center"> <PasswordBox Name="passwordBox" HorizontalAlignment="Center" Width="300" /> <TextBlock Name="outputTextBlock" Margin="0 10 0 0" FontFamily="Global User Interface" Text="Please input password." /> </StackPanel> </Page> |
▶ MainPage.xaml.cs
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using Microsoft.UI.Xaml; using Microsoft.UI.Xaml.Controls; namespace TestProject { /// <summary> /// 메인 페이지 /// </summary> public sealed partial class MainPage : Page { //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainPage() /// <summary> /// 생성자 /// </summary> public MainPage() { InitializeComponent(); this.passwordBox.PasswordChanged += passwordBox_PasswordChanged; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Private #region 패스워드 박스 패스워드 변경시 처리하기 - passwordBox_PasswordChanged(sender, e) /// <summary> /// 패스워드 박스 패스워드 변경시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void passwordBox_PasswordChanged(object sender, RoutedEventArgs e) { if(sender is PasswordBox passwordBox) { if(string.IsNullOrEmpty(passwordBox.Password)) { this.outputTextBlock.Visibility = Visibility.Visible; this.outputTextBlock.Text = "Please input password."; this.passwordBox.Password = string.Empty; } else { this.outputTextBlock.Visibility = Visibility.Collapsed; this.outputTextBlock.Text = string.Empty; } } } #endregion } } |
