82 lines
3.4 KiB
C#
82 lines
3.4 KiB
C#
using System.Windows;
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using System.Windows.Controls;
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using System.Windows.Controls.Primitives;
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using System.Windows.Media;
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namespace WPFDark.StandardControls
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{
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public class PasswordBoxHelper
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{
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public static readonly DependencyProperty IsPasswordVisibleProperty =
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DependencyProperty.RegisterAttached(
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"IsPasswordVisible",
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typeof(bool),
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typeof(PasswordBoxHelper),
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new PropertyMetadata(false, OnIsPasswordVisibleChanged));
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public static bool GetIsPasswordVisible(DependencyObject obj)
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{ return (bool)obj.GetValue(IsPasswordVisibleProperty); }
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public static void SetIsPasswordVisible(DependencyObject obj, bool value)
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{ obj.SetValue(IsPasswordVisibleProperty, value); }
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private static object? OriginContent { get; set; }
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//TODO
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private static void OnIsPasswordVisibleChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
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{
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if(d is PasswordBox passwordBox)
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{
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bool isVisible = (bool)e.NewValue;
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if(isVisible)
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{
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// 创建一个TextBox来显示密码
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var textBox = new TextBox
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{
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Text = passwordBox.Password,
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FontSize= passwordBox.FontSize,
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FontFamily = passwordBox.FontFamily,
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FontWeight = passwordBox.FontWeight,
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FontStyle = passwordBox.FontStyle,
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HorizontalContentAlignment = passwordBox.HorizontalContentAlignment,
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VerticalContentAlignment = passwordBox.VerticalContentAlignment,
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Padding = passwordBox.Padding,
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Margin = passwordBox.Margin,
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BorderThickness = passwordBox.BorderThickness,
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BorderBrush = passwordBox.BorderBrush,
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Background = passwordBox.Background,
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Foreground = passwordBox.Foreground
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};
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// 将TextBox的Text和PasswordBox的Password进行双向绑定
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textBox.TextChanged += (s, args) =>
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{
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if(s is TextBox tb)
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{
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passwordBox.Password = tb.Text;
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}
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};
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// 替换ContentHost的内容
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if(passwordBox.Template.FindName("PART_ContentHost", passwordBox) is ScrollViewer scrollViewer)
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{
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OriginContent = scrollViewer.Content; // 保存原始内容
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scrollViewer.Content = textBox;
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}
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}
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else
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{
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// 还原到PasswordBox的默认状态
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if(passwordBox.Template.FindName("PART_ContentHost", passwordBox) is ScrollViewer scrollViewer)
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{
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string currentPassword = passwordBox.Password;
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if(currentPassword != null)
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{
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scrollViewer.Content = OriginContent; // 清除TextBox
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passwordBox.Password = currentPassword; // 保持密码不变
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}
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}
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}
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}
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}
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}
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} |