1、TextBox
<ControlTemplate x:Key="WaterMarkTextBox" TargetType="{x:Type TextBox}"> <Border x:Name="border" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" SnapsToDevicePixels="True"> <Grid> <ScrollViewer x:Name="PART_ContentHost" Focusable="False" HorizontalScrollBarVisibility="Hidden" VerticalScrollBarVisibility="Hidden"/> <TextBlock x:Name="InternalWatermarkLabel" Text="{TemplateBinding Tag}" FontStyle="Italic" Visibility="Collapsed" Focusable="False" Foreground="Silver"/> </Grid> </Border> <ControlTemplate.Triggers> <MultiTrigger> <MultiTrigger.Conditions> <Condition Property="IsFocused" Value="False" /> <Condition Property="Text" Value="" /> </MultiTrigger.Conditions> <MultiTrigger.Setters> <Setter Property="Visibility" TargetName="InternalWatermarkLabel" Value="Visible" /> </MultiTrigger.Setters> </MultiTrigger> <Trigger Property="IsEnabled" Value="False"> <Setter Property="Opacity" TargetName="border" Value="0.56"/> </Trigger> <Trigger Property="IsMouseOver" Value="True"> <Setter Property="BorderBrush" TargetName="border" Value="#FF7EB4EA"/> </Trigger> <Trigger Property="IsKeyboardFocused" Value="True"> <Setter Property="BorderBrush" TargetName="border" Value="#FF569DE5"/> </Trigger> </ControlTemplate.Triggers> </ControlTemplate>
<TextBox Grid.Row="0" Grid.Column="1" Margin="0,15" Text="abcdefg" x:Name="tb_PassPhrase" VerticalAlignment="Center" Tag="Pass Phrase" Template="{DynamicResource WaterMarkTextBox}"> </TextBox>
2、PasswordBox
<Style x:Key="{x:Type PasswordBox}" TargetType="{x:Type PasswordBox}"> <Setter Property="WpfStyle:PasswordBoxMonitor.IsMonitoring" Value="True"/> <Setter Property="Margin" Value="0,15"/> <Setter Property="VerticalAlignment" Value="Center"/> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="{x:Type PasswordBox}"> <Border x:Name="border" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" SnapsToDevicePixels="True"> <Grid> <ScrollViewer x:Name="PART_ContentHost" Focusable="False" HorizontalScrollBarVisibility="Hidden" VerticalScrollBarVisibility="Hidden"/> <TextBlock x:Name="InternalWatermarkLabel" Text="{TemplateBinding Tag}" FontStyle="Italic" Visibility="Collapsed" Focusable="False" Foreground="Silver"/> </Grid> </Border> <ControlTemplate.Triggers> <MultiTrigger> <MultiTrigger.Conditions> <Condition Property="IsFocused" Value="False" /> <Condition Property="WpfStyle:PasswordBoxMonitor.PasswordLength" Value="0" /> </MultiTrigger.Conditions> <MultiTrigger.Setters> <Setter Property="Visibility" TargetName="InternalWatermarkLabel" Value="Visible" /> </MultiTrigger.Setters> </MultiTrigger> <Trigger Property="IsEnabled" Value="False"> <Setter Property="Opacity" TargetName="border" Value="0.56"/> </Trigger> <Trigger Property="IsMouseOver" Value="True"> <Setter Property="BorderBrush" TargetName="border" Value="#FF7EB4EA"/> </Trigger> <Trigger Property="IsKeyboardFocused" Value="True"> <Setter Property="BorderBrush" TargetName="border" Value="#FF569DE5"/> </Trigger> </ControlTemplate.Triggers> </ControlTemplate> </Setter.Value> </Setter> </Style>
public class PasswordBoxMonitor : DependencyObject { public static bool GetIsMonitoring(DependencyObject obj) { return (bool)obj.GetValue(IsMonitoringProperty); } public static void SetIsMonitoring(DependencyObject obj, bool value) { obj.SetValue(IsMonitoringProperty, value); } public static readonly DependencyProperty IsMonitoringProperty = DependencyProperty.RegisterAttached("IsMonitoring", typeof(bool), typeof(PasswordBoxMonitor), new UIPropertyMetadata(false, OnIsMonitoringChanged)); public static readonly DependencyProperty PasswordLengthProperty = DependencyProperty.RegisterAttached("PasswordLength", typeof(int), typeof(PasswordBoxMonitor), new UIPropertyMetadata(0)); public static int GetPasswordLength(DependencyObject obj) { int length = (int)obj.GetValue(PasswordLengthProperty); System.Diagnostics.Debug.WriteLine("Password Length:{0}!!!!!!!!!!!!!!", length.ToString()); return length; } public static void SetPasswordLength(DependencyObject obj, int value) { obj.SetValue(PasswordLengthProperty, value); } private static void OnIsMonitoringChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) { var pb = d as PasswordBox; if (pb == null) { return; } if ((bool)e.NewValue) { pb.PasswordChanged += PasswordChanged; } else { pb.PasswordChanged -= PasswordChanged; } } static void PasswordChanged(object sender, RoutedEventArgs e) { var pb = sender as PasswordBox; if (pb == null) { return; } SetPasswordLength(pb, pb.Password.Length); } }