Kepler-Release/Venus/Venus_Themes/UserControls/WPFMessageBox.xaml

<Window x:Name="MessageBoxWindow"
    x:Class="WPF.Themes.UserControls.WPFMessageBox"
             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:WPF.Themes.UserControls"
            MaxWidth="1500"
        AllowsTransparency="True"
        Background="Transparent"
        Closing="MessageBoxWindow_Closing"
        Loaded="Window_Loaded"
        MouseDown="Window_MouseDown"
        RenderTransformOrigin="0.5, 0.5"
        ResizeMode="NoResize"
        Topmost="True"
        ShowInTaskbar="False"
        SizeToContent="WidthAndHeight"
        Title="MyMessageBox"
        WindowStartupLocation="CenterScreen"
        WindowStyle="None"
             >
    <Window.RenderTransform>
        <ScaleTransform x:Name="Scale"/>
    </Window.RenderTransform>
    <Window.Resources>
        <!-- Brushes -->
        <LinearGradientBrush x:Key="BackgroundBrush" StartPoint="0,0" EndPoint="0,1">
            <GradientStop Offset="0" Color="#E4E9F0"/>
            <GradientStop Offset="1" Color="#D5DDED"/>
        </LinearGradientBrush>
        <!-- Styles -->
        <Style TargetType="Label">
            <Setter Property="VerticalContentAlignment" Value="Center"/>
            <Setter Property="HorizontalContentAlignment" Value="Left"/>
            <Setter Property="FontFamily" Value="Segoe UI"/>
            <Setter Property="FontSize" Value="12pt"/>
            <Setter Property="Foreground" Value="#FF003399"/>
        </Style>
        <Style TargetType="Image">
            <Setter Property="Height" Value="42"/>
            <Setter Property="Width" Value="42"/>
            <Setter Property="Margin" Value="3"/>
        </Style>
        <Style TargetType="Button">
            <Setter Property="Height" Value="23"/>
            <Setter Property="Width" Value="75"/>
            <Setter Property="Margin" Value="3"/>
        </Style>
        <!-- Animation -->
        <Storyboard x:Key="LoadAnimation">
            <DoubleAnimation
        AccelerationRatio="0.4"
        Duration="00:00:00.15"
        From="0.6"
        Storyboard.TargetName="Scale"
        Storyboard.TargetProperty="(ScaleTransform.ScaleX)"
        To="1.1"/>
            <DoubleAnimation
        AccelerationRatio="0.4"
        Duration="00:00:00.15"
        From="0.6"
        Storyboard.TargetName="Scale"
        Storyboard.TargetProperty="(ScaleTransform.ScaleY)"
        To="1.1"/>
            <DoubleAnimation
        AccelerationRatio="0.4"
        Duration="00:00:00.15"
        From="0"
        Storyboard.TargetName="MessageBoxWindow"
        Storyboard.TargetProperty="(Window.Opacity)"
        To="1"/>
            <DoubleAnimation
        BeginTime="00:00:00.15"
        Duration="00:00:00.1"
        From="1.1"
        Storyboard.TargetName="Scale"
        Storyboard.TargetProperty="(ScaleTransform.ScaleX)"
        To="1"/>
            <DoubleAnimation
        BeginTime="00:00:00.15"
        Duration="00:00:00.1"
        From="1.1"
        Storyboard.TargetName="Scale"
        Storyboard.TargetProperty="(ScaleTransform.ScaleY)"
        To="1"/>
        </Storyboard>
        <Storyboard x:Key="UnloadAnimation">
            <DoubleAnimation
        AccelerationRatio="0.4"
        Duration="00:00:00.2"
        From="1"
        Storyboard.TargetName="Scale"
        Storyboard.TargetProperty="(ScaleTransform.ScaleX)"
        To="0.6"/>
            <DoubleAnimation
        AccelerationRatio="0.4"
        Duration="00:00:00.2"
        From="1"
        Storyboard.TargetName="Scale"
        Storyboard.TargetProperty="(ScaleTransform.ScaleY)"
        To="0.6"/>
            <DoubleAnimation
        AccelerationRatio="0.4"
        Duration="00:00:00.2"
        From="1"
        Storyboard.TargetName="MessageBoxWindow"
        Storyboard.TargetProperty="(Window.Opacity)"
        To="0"/>
        </Storyboard>
    </Window.Resources>
    <!-- Border with Margin = 50 to allow the animation to grow beyond the window's original size. 
  If this was omitted the window would just get cropped when it reached it's original size and try to grow-->
    <Border
    Margin="50"
    Background="{StaticResource BackgroundBrush}"
    BorderBrush="CornflowerBlue"
    BorderThickness="2"
    Padding="7">
        <DockPanel LastChildFill="True">
            <Expander
        x:Name="DetailsExpander"
        Margin="0,7,0,0"
        DockPanel.Dock="Bottom"
        Header="{DynamicResource Detail}">
                <DockPanel Margin="3" LastChildFill="True">
                    <TextBox
            x:Name="DetailsText"
            MaxHeight="275"
            IsReadOnly="True"
            IsReadOnlyCaretVisible="True"
            TextWrapping="Wrap"
            VerticalScrollBarVisibility="Auto"/>
                </DockPanel>
            </Expander>
            <!-- placeholder for the buttons-->
            <StackPanel
        x:Name="ButtonsPanel"
        HorizontalAlignment="Center"
        DockPanel.Dock="Bottom"
        Orientation="Horizontal"/>
            <Image x:Name="ImagePlaceholder" DockPanel.Dock="Left"/>
            <!-- The label contains a text block to enable text wrapping-->
            <Label x:Name="MessageLabel" DockPanel.Dock="Right">
                <TextBlock x:Name="MessageText" TextWrapping="Wrap"/>
            </Label>
        </DockPanel>
    </Border>
</Window>