MainWindow.xaml

<Window x:Class="WPFCustomValidationErrorPresenter.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:dx="http://schemas.devexpress.com/winfx/2008/xaml/core"
        xmlns:dxe="http://schemas.devexpress.com/winfx/2008/xaml/editors"
        xmlns:dxg="http://schemas.devexpress.com/winfx/2008/xaml/grid"
        Title="Error presenter customization example" Height="400" Width="230" >

    <Window.Resources>
        <ResourceDictionary>
            <ResourceDictionary.MergedDictionaries>
                <ResourceDictionary Source="/WPFCustomValidationErrorPresenter;component/Themes/EditorsCustomTemplates.xaml"/>
            </ResourceDictionary.MergedDictionaries>
        </ResourceDictionary>
    </Window.Resources>

    <StackPanel Orientation="Horizontal" Margin="5,7">
        <StackPanel>
            <TextBlock Text="TextEdit:" Margin="5,0"/>
            <dxe:TextEdit Name="TextEdit" TabIndex="0" Text="123456" Validate="textEdit_Validate" InvalidValueBehavior="AllowLeaveEditor" HorizontalAlignment="Left" Width="200"/>
            <StackPanel Orientation="Horizontal" Height="15">
                <TextBlock Text="Error type: " Visibility="{Binding ElementName=TextEdit, Path=HasValidationError, Converter={StaticResource BoolToVisibilityConverter}}"/>
                <TextBlock Text="{Binding ElementName=TextEdit, Path=ValidationError.ErrorType}"/>
            </StackPanel>

            <TextBlock Text="PasswordBoxEdit:" Margin="5,10,0,0" />
            <dxe:PasswordBoxEdit Name="passwordBoxEdit1" Validate="textEdit_Validate" InvalidValueBehavior="AllowLeaveEditor" HorizontalAlignment="Left" Width="200"/>
            
            <TextBlock Text="ButtonEdit:" Margin="5,10,0,0" />
            <dxe:ButtonEdit Validate="textEdit_Validate" InvalidValueBehavior="AllowLeaveEditor" Name="buttonEdit1" HorizontalAlignment="Left" Width="200"/>
            
            <TextBlock Text="ComboBoxEdit:" Margin="5,10,0,0" />
            <dxe:ComboBoxEdit Validate="textEdit_Validate" InvalidValueBehavior="AllowLeaveEditor" HorizontalAlignment="Left" Width="200">
            </dxe:ComboBoxEdit>
            
            <TextBlock Text="SpinEdit:" Margin="5,10,0,0" />
            <dxe:SpinEdit Name="spinEdit1" Validate="textEdit_Validate" InvalidValueBehavior="AllowLeaveEditor" HorizontalAlignment="Left" Width="200" />
            
            <TextBlock Text="PopupCalcEdit:" Margin="5,10,0,0" />
            <dxe:PopupCalcEdit Name="popupCalcEdit1" Validate="textEdit_Validate" InvalidValueBehavior="AllowLeaveEditor" HorizontalAlignment="Left" Width="200" />
            
            <TextBlock Text="LookUpEdit:" Margin="5,10,0,0" />
            <dxg:LookUpEdit Name="lookUpEdit1" ValidateOnTextInput="True" Validate="textEdit_Validate" InvalidValueBehavior="AllowLeaveEditor" HorizontalAlignment="Left" Width="200" />
        </StackPanel>
    </StackPanel>
</Window>