EgtWPFLib5/EgtTextBox.xaml

<UserControl x:Class="EgtTextBox"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
             xmlns:local="clr-namespace:EgtWPFLib5"
             mc:Ignorable="d" 
             d:DesignHeight="450" d:DesignWidth="800">

    <UserControl.Resources>
        <LinearGradientBrush x:Key="TextBoxBorder" EndPoint="0,20" MappingMode="Absolute" StartPoint="0,0">
            <GradientStop Color="#ABADB3" Offset="0.05"/>
            <GradientStop Color="#E2E3EA" Offset="0.07"/>
            <GradientStop Color="#E3E9EF" Offset="1"/>
        </LinearGradientBrush>
    </UserControl.Resources>

    <Grid>

        <Border Name="Brd"
                BorderThickness="1"
                Padding="1"
                AllowDrop="true"
                FocusVisualStyle="{x:Null}"
                ScrollViewer.PanningMode="VerticalFirst"
                Stylus.IsFlicksEnabled="False" >
            <Border.Style>
                <Style TargetType="Border">
                    <Style.Triggers>
                        <Trigger Property="IsEnabled" Value="True">
                            <Setter Property="Background" Value="{DynamicResource {x:Static SystemColors.WindowBrushKey}}"/>
                        </Trigger>
                        <Trigger Property="IsEnabled" Value="False">
                            <Setter Property="Background" Value="{DynamicResource {x:Static SystemColors.ControlBrushKey}}"/>
                        </Trigger>
                        <Trigger Property="IsMouseOver" Value="True">
                            <Setter Property="BorderBrush" Value="#FF7EB4EA"/>
                            <Setter Property="Cursor" Value="IBeam"/>
                        </Trigger>
                        <Trigger Property="IsMouseOver" Value="False">
                            <Setter Property="BorderBrush" Value="{StaticResource TextBoxBorder}"/>
                            <Setter Property="Cursor" Value="Arrow"/>
                        </Trigger>
                        <Trigger Property="IsKeyboardFocused" Value="True">
                            <Setter Property="BorderBrush" Value="#FF569DE5"/>
                        </Trigger>
                    </Style.Triggers>
                </Style>
            </Border.Style>
            <TextBlock Name="TxBl" 
                       Visibility="Visible"
                       Padding="2,0,2,0">
                <TextBlock.Style>
                    <Style TargetType="TextBlock">
                        <Style.Triggers>
                            <Trigger Property="IsEnabled" Value="False">
                                <Setter Property="Background" Value="{DynamicResource {x:Static SystemColors.ControlBrushKey}}"/>
                                <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}"/>
                            </Trigger>
                            <Trigger Property="IsEnabled" Value="True">
                                <Setter Property="Background" Value="White"/>
                                <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}"/>
                            </Trigger>
                        </Style.Triggers>
                    </Style>
                </TextBlock.Style>
            </TextBlock>
        </Border>

        <TextBox Name="TxBx" 
                 Visibility="Hidden"
                 Padding="1,1,1,0"
                 Foreground="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}"/>

    </Grid>
</UserControl>