OpenFavoriteControl.xaml

<UserControl x:Class="Leosac.KeyManager.Library.UI.OpenFavoriteControl"
             x:Name="favControl"
             xmlns="http:https://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http:https://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http:https://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http:https://schemas.microsoft.com/expression/blend/2008"
             xmlns:domain="clr-namespace:Leosac.KeyManager.Library.UI.Domain"
             xmlns:local="clr-namespace:Leosac.KeyManager.Library.UI"
             xmlns:materialDesign="http:https://materialdesigninxaml.net/winfx/xaml/themes"
             xmlns:properties="clr-namespace:Leosac.KeyManager.Library.UI.Properties"
             mc:Ignorable="d" 
             d:DesignHeight="150" d:DesignWidth="390">
    <UserControl.Resources>
        <domain:HexStringLengthConverter x:Key="HexStringLengthConverter" />
    </UserControl.Resources>
    <StackPanel Margin="16" Width="350">
        <Label Content="{Binding Path=Title, ElementName=favControl}" Margin="5" />
        <DockPanel>
            <WrapPanel DockPanel.Dock="Right" VerticalAlignment="Center">
                <materialDesign:DialogHost Identifier="KeyGenerationDialog" DialogTheme="Inherit">
                    <materialDesign:DialogHost.DialogContent>
                        <local:SymmetricKeyGenerationDialog KeySize="{Binding Path=Properties.SecretMaxLength, Mode=OneWay, Converter={StaticResource HexStringLengthConverter}, ElementName=favControl}" KeyValue="{Binding Properties.Secret, Mode=TwoWay, ElementName=favControl}" />
                    </materialDesign:DialogHost.DialogContent>
                    <Button Style="{StaticResource MaterialDesignFloatingActionMiniLightButton}" Command="{x:Static materialDesign:DialogHost.OpenDialogCommand}"
                            Width="24" Height="24" Margin="2"
                            ToolTip="{x:Static properties:Resources.KeyGeneration}">
                        <materialDesign:PackIcon Kind="Seedling" Height="16" Width="16"/>
                    </Button>
                </materialDesign:DialogHost>
            </WrapPanel>
            <PasswordBox materialDesign:HintAssist.HelperText="{x:Static properties:Resources.SecretHelper}"
                 materialDesign:HintAssist.Hint="{x:Static properties:Resources.Secret}"
                 materialDesign:TextFieldAssist.HasClearButton="True" Margin="5"
                 materialDesign:TextFieldAssist.CharacterCounterVisibility="Visible"
                 Style="{StaticResource MaterialDesignFloatingHintRevealPasswordBox}"
                 materialDesign:PasswordBoxAssist.Password="{Binding Properties.Secret, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged, ElementName=favControl}"
                 MaxLength="{Binding Properties.SecretMaxLength, Mode=OneWay, ElementName=favControl}"
                 Visibility="{Binding Properties.StoreSecret, Converter={StaticResource InverseBooleanToVisibilityConverter}, ElementName=favControl}"/>
        </DockPanel>
        <StackPanel HorizontalAlignment="Right" Orientation="Horizontal">
            <Button Margin="0,8,8,0" CommandParameter="{Binding}" Command="{Binding Command, ElementName=favControl}" Content="{x:Static properties:Resources.OK}" IsDefault="True" Style="{StaticResource MaterialDesignFlatButton}" />
            <Button Margin="0,8,8,0" Command="{x:Static materialDesign:DialogHost.CloseDialogCommand}" Content="{x:Static properties:Resources.Cancel}" IsCancel="True" Style="{StaticResource MaterialDesignFlatButton}" />
        </StackPanel>
    </StackPanel>
</UserControl>