Adding validation error template to the toggle button (#2555)

Author: Keboo

MaterialDesignThemes.Wpf/Themes/MaterialDesignTheme.TextBox.xaml

@@ -61,7 +61,7 @@
         <Setter Property="Padding" Value="{x:Static wpf:Constants.TextBoxDefaultPadding}" />
         <Setter Property="ScrollViewer.PanningMode" Value="VerticalFirst" />
         <Setter Property="Stylus.IsFlicksEnabled" Value="False" />
-        <Setter Property="Validation.ErrorTemplate" Value="{DynamicResource MaterialDesignValidationErrorTemplate}" />
+        <Setter Property="Validation.ErrorTemplate" Value="{StaticResource MaterialDesignValidationErrorTemplate}" />
         <Setter Property="wpf:TextFieldAssist.UnderlineBrush" Value="{DynamicResource PrimaryHueMidBrush}" />
         <Setter Property="wpf:HintAssist.Foreground" Value="{DynamicResource PrimaryHueMidBrush}" />
         <Setter Property="ContextMenu" Value="{StaticResource MaterialDesignDefaultContextMenu}" />

MaterialDesignThemes.Wpf/Themes/MaterialDesignTheme.ToggleButton.xaml

@@ -1,7 +1,6 @@
 <ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
                     xmlns:wpf="clr-namespace:MaterialDesignThemes.Wpf"
-                    xmlns:system="clr-namespace:System;assembly=mscorlib"
                     xmlns:converters="clr-namespace:MaterialDesignThemes.Wpf.Converters">
 
     <!-- TODO freeze, share -->
@@ -267,6 +266,7 @@
         <Setter Property="wpf:ToggleButtonAssist.SwitchTrackOffBackground" Value="Black"/>
         <Setter Property="BorderThickness" Value="1"/>
         <Setter Property="Padding" Value="0 1 0 0"/>
+        <Setter Property="Validation.ErrorTemplate" Value="{StaticResource MaterialDesignValidationErrorTemplate}" />
         <Setter Property="Template">
             <Setter.Value>
                 <ControlTemplate TargetType="{x:Type ToggleButton}">