[WPF] Style et snon utilisation dans differents fichiers

Bonjour,

J'ai défini un style comme ceci, afin de gérer mes erreurs de validation:

Code:

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<Style x:Key="validationStyle" TargetType="{x:Type Control}">
            <Setter Property="Validation.ErrorTemplate">
                <Setter.Value>
                    <ControlTemplate>
                        <DockPanel LastChildFill="True">
                            <Border BorderBrush="Red" BorderThickness="1">
                                <AdornedElementPlaceholder />
                            </Border>
                        </DockPanel>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
            <Style.Triggers>
                <Trigger Property="Validation.HasError" Value="true">
                    <Setter Property="ToolTip"
                Value="{Binding RelativeSource={RelativeSource Self}, 
                       Path=(Validation.Errors), 
                         Converter={WPFTools:ValidationErrorsToStringConverter}}"/>
                </Trigger>
            </Style.Triggers>
        </Style>

et je l'attribue à differents Editor d'une lib graphique externe comme ceci:

Code:

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<Style TargetType="{x:Type igEditors:XamComboEditor}" BasedOn="{StaticResource  WPFTools:ValidationStyle.ValidationStyle}" />
        <Style TargetType="{x:Type igEditors:XamMaskedEditor}" BasedOn="{StaticResource  WPFTools:ValidationStyle.ValidationStyle}" /

ca donne:
MainLayout.xaml

Code:

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<UserControl x:Class="Pension.GUI.CreatePensionPanel"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:igEditors="http://infragistics.com/Editors"
    xmlns:sys="clr-namespace:System;assembly=mscorlib"
    xmlns:WPFTools="clr-namespace:WPFTools;assembly=WPFTools"
    Width="1280" Height="1024" Background="#FFD3E1EE" FontFamily="Arial" FontSize="11" FontWeight="Bold" Foreground="#FF215A74"
    >
    <UserControl.Resources>
        <Style x:Key="validationStyle" TargetType="{x:Type Control}">
            <Setter Property="Validation.ErrorTemplate">
                <Setter.Value>
                    <ControlTemplate>
                        <DockPanel LastChildFill="True">
                            <Border BorderBrush="Red" BorderThickness="1">
                                <AdornedElementPlaceholder />
                            </Border>
                        </DockPanel>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
            <Style.Triggers>
                <Trigger Property="Validation.HasError" Value="true">
                    <Setter Property="ToolTip"
                Value="{Binding RelativeSource={RelativeSource Self}, 
                       Path=(Validation.Errors)[0].ErrorContent}"/>
                </Trigger>
            </Style.Triggers>
        </Style>
 
        <Style TargetType="{x:Type igEditors:XamComboEditor}" BasedOn="{StaticResource validationStyle}" />
        <Style TargetType="{x:Type igEditors:XamMaskedEditor}" BasedOn="{StaticResource validationStyle}" />
    </UserControl.Resources>
<Grid>
... Mon Layout
</Grid>
<UserControl/>

Maintenant je voudrais que mon style soit dans un fichier XAML externe, pour pouvoir le reutiliser dans d'autres fenetres de mon appli:
J'ai donc créer un fichier StyleValidation.xaml

Code:

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<ResourceDictionary 
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:igEditors="http://infragistics.com/Editors"
    x:Class="WPFTools.ValidationStyle"
    xmlns:WPFTools="clr-namespace:WPFTools"
    >
 
    <Style x:Key="ValidationStyle" TargetType="{x:Type Control}">
        <Setter Property="Validation.ErrorTemplate">
            <Setter.Value>
                <ControlTemplate>
                    <DockPanel LastChildFill="True">
                        <Border BorderBrush="Red" BorderThickness="1">
                            <AdornedElementPlaceholder />
                        </Border>
                    </DockPanel>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
        <Style.Triggers>
            <Trigger Property="Validation.HasError" Value="true">
                <Setter Property="ToolTip"
                Value="{Binding RelativeSource={RelativeSource Self}, 
                      Path=(Validation.Errors), 
                         Converter={WPFTools:ValidationErrorsToStringConverter}}"/>
            </Trigger>
        </Style.Triggers>
    </Style>
</ResourceDictionary>

et desormais mon MainLayout.xaml devrait ressembler à:

Code:

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<UserControl x:Class="Pension.GUI.CreatePensionPanel"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:igEditors="http://infragistics.com/Editors"
    xmlns:sys="clr-namespace:System;assembly=mscorlib"
    xmlns:WPFTools="clr-namespace:WPFTools;assembly=WPFTools"
    Width="1280" Height="1024" Background="#FFD3E1EE" FontFamily="Arial" FontSize="11" FontWeight="Bold" Foreground="#FF215A74"
    >
 
<Style TargetType="{x:Type igEditors:XamComboEditor}" BasedOn="{StaticResource  WPFTools:ValidationStyle.ValidationStyle}" />
        <Style TargetType="{x:Type igEditors:XamMaskedEditor}" BasedOn="{StaticResource  WPFTools:ValidationStyle.ValidationStyle}" /
<Grid>
... Mon Layout
</Grid>
<UserControl/>

Le problème c'est que ca me sort une erreur me disant que

Citation:

WPFTools:ValidationStyle.ValidationStyle n'est pas connu.

Comment faire?
Merci.