wpf 自定义密码文本框，并且可以双向绑定
<UserControl x:Class="项目.UcPassword"xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"xmlns:local="clr-namespace:YouMin_MicroplateReader"xmlns:i="http://schemas.microsoft.com/xaml/behaviors"xmlns:keyboard="clr-namespace:Hs.KeyBoard.WPF.Behavior;assembly=Hs.KeyBoard.WPF" ><UserControl.Resources><Style TargetType="CheckBox" x:Key="CheckBoxStyle"><Setter Property="HorizontalAlignment" Value="Right"></Setter><Setter Property="VerticalAlignment" Value="Center"></Setter><Setter Property="Margin" Value="0 0 5 0"></Setter><Setter Property="Template"><Setter.Value><ControlTemplate TargetType="CheckBox"><Image Margin="0 0 5 0" Height="30" Width="30" Stretch="Fill" x:Name="Img" Source="pack://application:,,,/项目名称;component/Images/GrayWhite.png"/></ControlTemplate></Setter.Value></Setter></Style><Style TargetType="CheckBox" x:Key="LookStyle"><Setter Property="HorizontalAlignment" Value="Right"></Setter><Setter Property="VerticalAlignment" Value="Center"></Setter><Setter Property="Margin" Value="0 0 5 0"></Setter><Setter Property="Cursor" Value="Hand" /><Setter Property="IsChecked" Value="False" /><Setter Property="Template"><Setter.Value><ControlTemplate TargetType="{x:Type CheckBox}"><Image Margin="0 0 5 0" Height="50" Width="55" Stretch="Fill" x:Name="Img"/><ControlTemplate.Triggers><Trigger Property="IsEnabled" Value="false"><Setter Property="Opacity" Value="0.6"/></Trigger><Trigger Property="IsChecked" Value="True"><Setter TargetName="Img" Property="Source" Value="pack://application:,,,/项目名称;component/Images/Look.png" /></Trigger><Trigger Property="IsChecked" Value="False"><Setter TargetName="Img" Property="Source" Value="pack://application:,,,/项目名称;component/Images/UnLook.png" /></Trigger></ControlTemplate.Triggers></ControlTemplate></Setter.Value></Setter></Style></UserControl.Resources><Border Background="#F3FAFF" BorderBrush="#FFFFFF" BorderThickness="3" Height="56" Width="500" ><Grid><Grid.ColumnDefinitions><ColumnDefinition /><ColumnDefinition Width="Auto"/><ColumnDefinition Width="Auto"/></Grid.ColumnDefinitions><TextBox Background="Transparent" BorderThickness="0" VerticalContentAlignment="Center" Padding="5,0,0,0"Visibility="{Binding TbVisibility,RelativeSource={RelativeSource Mode=FindAncestor,AncestorType={x:Type UserControl}},Mode=TwoWay}" Text="{Binding Password,RelativeSource={RelativeSource Mode=FindAncestor,AncestorType={x:Type UserControl}},Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}"><i:Interaction.Behaviors><keyboard:KeyboardBehavior /></i:Interaction.Behaviors></TextBox><PasswordBox Background="Transparent" BorderThickness="0" local:PasswordBoxHelper.Attach="True" Padding="5,0,0,0" VerticalContentAlignment="Center"Visibility="{Binding PwVisibility,RelativeSource={RelativeSource Mode=FindAncestor,AncestorType={x:Type UserControl}},Mode=TwoWay}" local:PasswordBoxHelper.Password="{Binding Password,RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type UserControl}},Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}"InputMethod.IsInputMethodEnabled="False"><i:Interaction.Behaviors><keyboard:KeyboardBehavior /></i:Interaction.Behaviors></PasswordBox><CheckBox Grid.Column="1" Style="{StaticResource CheckBoxStyle}" Panel.ZIndex="999"IsChecked="{Binding IsCleared,RelativeSource={RelativeSource Mode=FindAncestor,AncestorType={x:Type UserControl}},Mode=TwoWay}" Visibility ="{Binding ClearVisibility,RelativeSource={RelativeSource Mode=FindAncestor,AncestorType={x:Type UserControl}},Mode=TwoWay}"/><CheckBox Grid.Column="2" Style="{StaticResource LookStyle}" Panel.ZIndex="999"IsChecked="{Binding IsChecked,RelativeSource={RelativeSource Mode=FindAncestor,AncestorType={x:Type UserControl}},Mode=TwoWay}"></CheckBox></Grid></Border>
</UserControl>PasswordBoxHelper.cs
using System;
using System.Windows;
using System.Windows.Controls;namespace 项目名称
{public static class PasswordBoxHelper{public static readonly DependencyProperty PasswordProperty = DependencyProperty.RegisterAttached("Password", typeof(string), typeof(PasswordBoxHelper), new FrameworkPropertyMetadata(string.Empty, OnPasswordPropertyChanged));public static readonly DependencyProperty AttachProperty = DependencyProperty.RegisterAttached("Attach", typeof(bool), typeof(PasswordBoxHelper), new PropertyMetadata(false, Attach));private static readonly DependencyProperty IsUpdatingProperty = DependencyProperty.RegisterAttached("IsUpdating", typeof(bool), typeof(PasswordBoxHelper));public static void SetAttach(DependencyObject dp, bool value){dp.SetValue(AttachProperty, value);}public static bool GetAttach(DependencyObject dp){return (bool)dp.GetValue(AttachProperty);}public static string GetPassword(DependencyObject dp){return (string)dp.GetValue(PasswordProperty);}public static void SetPassword(DependencyObject dp, string value){dp.SetValue(PasswordProperty, value);}private static bool GetIsUpdating(DependencyObject dp){return (bool)dp.GetValue(IsUpdatingProperty);}private static void SetIsUpdating(DependencyObject dp, bool value){dp.SetValue(IsUpdatingProperty, value);}private static void OnPasswordPropertyChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e){if (sender is not PasswordBox passwordBox || passwordBox == null) { return; }try{passwordBox.PasswordChanged -= PasswordChanged;if (!(bool)GetIsUpdating(passwordBox)){passwordBox.Password = (string)e.NewValue;}passwordBox.PasswordChanged += PasswordChanged;}catch (Exception ex){LogHelper.GetSingleObj().WriteLog(ex);}}private static void Attach(DependencyObject sender, DependencyPropertyChangedEventArgs e){if (sender is not PasswordBox passwordBox || passwordBox == null) { return; }try{if ((bool)e.OldValue){passwordBox.PasswordChanged -= PasswordChanged;}if ((bool)e.NewValue){passwordBox.PasswordChanged += PasswordChanged;}}catch (Exception ex){LogHelper.GetSingleObj().WriteLog(ex);}}private static void PasswordChanged(object sender, RoutedEventArgs e){if (sender is not PasswordBox passwordBox || passwordBox == null) { return; }try{SetIsUpdating(passwordBox, true);SetPassword(passwordBox, passwordBox.Password);SetIsUpdating(passwordBox, false);}catch (Exception ex){LogHelper.GetSingleObj().WriteLog(ex);}}}
}调用
xmlns:local="clr-namespace:项目名" <local:UcPassword Password="{Binding Password,Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}" Grid.Row="2" Grid.Column="1" Panel.ZIndex="1" HorizontalAlignment="Left" Width="500" Height="56" />ViewModel
/// <summary>/// 密码/// </summary>[ObservableProperty]string _Password = string.Empty;