BPASmartClient/BPASmartClient.CustomResource/UserControls/Toast.xaml

<UserControl
    x:Class="BPASmartClient.CustomResource.UserControls.Toast"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:iconPacks="http://metro.mahapps.com/winfx/xaml/iconpacks"
    xmlns:local="clr-namespace:BPASmartClient.CustomResource.UserControls"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    xmlns:con="clr-namespace:BPASmartClient.CustomResource.Converters"
    Width="Auto"
    Height="Auto"
    MinWidth="100"
    MinHeight="50"
    MaxWidth="1500"
    MaxHeight="500"
    d:DesignHeight="48"
    d:DesignWidth="200"
    Focusable="False"
    MouseLeftButtonDown="UserControl_MouseLeftButtonDown"
    mc:Ignorable="d">

    <UserControl.Resources>
        <con:ToastIconConverter x:Key="IconConverter"></con:ToastIconConverter>
    </UserControl.Resources>

    <Border CornerRadius="{Binding CornerRadius}" 
            BorderThickness="{Binding BorderThickness}" 
            Background="{Binding Background}" 
            BorderBrush="{Binding BorderBrush}" 
            HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Margin="1">
        <Border.Effect>
            <DropShadowEffect Color="#D1D1D1" BlurRadius="10" ShadowDepth="0" Opacity="0.5" />
        </Border.Effect>

        <Grid x:Name="grid" HorizontalAlignment="Stretch" VerticalAlignment="Stretch">
            <Grid.ColumnDefinitions>
                <ColumnDefinition Width="Auto"/>
                <ColumnDefinition Width="10"/>
                <ColumnDefinition Width="Auto"/>
            </Grid.ColumnDefinitions>

            <iconPacks:PackIconFontAwesome x:Name="icon_toast" VerticalAlignment="Center" HorizontalAlignment="Center" Margin="10 0 0 0"
                                           Foreground="{Binding IconForeground}" 
                                           Width="{Binding IconSize}" 
                                           Height="{Binding IconSize}">
                <iconPacks:PackIconFontAwesome.Kind>
                    <MultiBinding Converter="{StaticResource IconConverter}">
                        <Binding Path="Icon"/>
                        <Binding ElementName="grid"/>
                        <Binding ElementName="txt_toast"/>
                    </MultiBinding>
                </iconPacks:PackIconFontAwesome.Kind>
            </iconPacks:PackIconFontAwesome>

            <TextBlock x:Name="txt_toast" Grid.Column="2" Text="{Binding Message}" 
                       MaxWidth="{Binding TextWidth}" Height="Auto" TextWrapping="Wrap"
                       Foreground="{Binding Foreground}" 
                       FontStyle="{Binding FontStyle}"
                       FontStretch="{Binding FontStretch}"
                       FontSize="{Binding FontSize}"
                       FontFamily="{Binding FontFamily}"
                       FontWeight="{Binding FontWeight}"
                       VerticalAlignment="{Binding VerticalContentAlignment}"
                       HorizontalAlignment="{Binding HorizontalContentAlignment}" Padding="0 5 10 5">
            </TextBlock>
        </Grid>
    </Border>
</UserControl>