Custom Control avec different Styles

bonjour dominiqueFaure

Bah,c'est comme ca que travaille WPF.Pour chaque control present wpf recherche son style dans l'ordre suvant :
-niveau assembly d'Application(style perso avec x:key)
-sinon assembly de librairie(cas des custom control) dans dossier Themes,fichier Generic.xaml
-sinon dans PresentationFramework.dll...........
Le style ayant ete trouve il "skippe" le reste.......

Pour pouvoir faire ce que tu veux il faut
1/ specifier comme suit ton dictionnaire de resources de style supplementaire:

Code:

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<ResourceDictionary.MergedDictionaries>
        <ResourceDictionary Source="/WpfMyControlLib;component/Themes/BrushStyleRed.xaml" />
        <ResourceDictionary 
    </ResourceDictionary.MergedDictionaries>

dans Generic.xaml avec nom qualifie de l'assembly hote (ta lib) dans Prop Source..
2/Specifer le Style par defaut sans cle(x:key) explicitement dans Generic.XAML.....

Dans l'appli d'utilisation referencer au niveau resource le dictionary Generic.xaml

Code:

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<Application x:Class="WpfTestThemes2.App"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             StartupUri="Window1.xaml">
    <!--rajouter  au biveau  application(ou window ) cette ref..à generic.xaml...-->
    <!--pour voir les styles dans la fenetre Proprietes-->
    <Application.Resources>
        <ResourceDictionary  Source="/WpfMyControlLib;component/Themes/Generic.xaml"/>
    </Application.Resources>
</Application>

Exemple de code pour un CustomButton avec un style par defaut et 2 styles optionnels:
1/projet lib
code behind .cs du button:

Code:

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
 
namespace WpfMyControlLib
{
    public class CustomButton : Button
    {
        static CustomButton()
        {
            DefaultStyleKeyProperty.OverrideMetadata(typeof(CustomButton), new FrameworkPropertyMetadata(typeof(CustomButton)));
        }
    }
}

Fichier xam du dossier Themes:

Code:

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<!--fichier generic.xaml-->
    <ResourceDictionary
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="clr-namespace:WpfMyControlLib">
 
    <!--style par defaut pour le CustomButton-->
    <Style 
        TargetType="{x:Type local:CustomButton}">
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate 
                    TargetType="{x:Type local:CustomButton}">
                    <Grid Margin="5" Name="grid">
                        <Ellipse Stroke="DarkBlue" 
                                 StrokeThickness="2">
                            <Ellipse.Fill>
                                <RadialGradientBrush
                                    Center="0.3,0.2"
                                    RadiusX="0.5" 
                                    RadiusY="0.5">
                                    <GradientStop 
                                        Color="Azure" Offset="0.1" />
                                    <GradientStop 
                                        Color="CornflowerBlue" Offset="1.1" />
                                </RadialGradientBrush>
                            </Ellipse.Fill>
                        </Ellipse>
                        <ContentPresenter 
                            Name="content" 
                            Margin="10"
                            HorizontalAlignment="Center" 
                            VerticalAlignment="Center"/>
                    </Grid>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>
    <!--les MergedDictionaries-->
    <ResourceDictionary.MergedDictionaries>
        <ResourceDictionary Source="/WpfMyControlLib;component/Themes/BrushStyleRed.xaml" />
        <ResourceDictionary Source="/WpfMyControlLib;component/Themes/BrushStyleCornsilk.xaml" />
    </ResourceDictionary.MergedDictionaries>
 
</ResourceDictionary>
 
<!--Fichier BrushStyleCornsilk.xaml-->
    <ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
                    xmlns:local="clr-namespace:WpfMyControlLib">
   <!--simple x:jey pour le style N0 1-->
    <Style 
        x:Key="StyleBrushCornsilk"
        TargetType="{x:Type local:CustomButton}">
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate 
                    TargetType="{x:Type local:CustomButton}">
                    <Grid
                        Margin="5" 
                        Name="grid">
                        <Ellipse 
                           x:Name="MyEllipse" 
                            Stroke="Brown" 
                            StrokeThickness="4"
                            Fill="Cornsilk">
                        </Ellipse>
                        <ContentPresenter 
                            Name="content" Margin="10"
                            HorizontalAlignment="Center" 
                            VerticalAlignment="Center"/>
                    </Grid>
                </ControlTemplate>
            </Setter.Value>
 
        </Setter>
        <Style.Triggers>
            <Trigger  
                Property="IsMouseOver" Value="true">
                <Setter 
                   Property="Ellipse.Opacity" Value="0.4"/>
            </Trigger>
        </Style.Triggers>
    </Style>
</ResourceDictionary>
 
<!--Fichier BrushStyleRed.xaml-->
<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
                    xmlns:local="clr-namespace:WpfMyControlLib">
    <!--simple x:jey pour le style N0 2-->
    <Style 
        x:Key="StyleBrushRed"
        TargetType="{x:Type local:CustomButton}">
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate 
                    TargetType="{x:Type local:CustomButton}">
                    <Grid
                        Margin="5" 
                        Name="grid">
                        <Ellipse 
                           x:Name="MyEllipse" 
                            Stroke="CornflowerBlue" 
                            StrokeThickness="4"
                            Fill="Red">
                        </Ellipse>
                        <ContentPresenter 
                            Name="content" Margin="10"
                            HorizontalAlignment="Center" 
                            VerticalAlignment="Center"/>
                    </Grid>
                </ControlTemplate>
            </Setter.Value>
 
        </Setter>
        <Style.Triggers>
            <Trigger  
                Property="IsMouseOver" Value="true">
                <Setter 
                   Property="Ellipse.Opacity" Value="0.4"/>
            </Trigger>
        </Style.Triggers>
    </Style>
</ResourceDictionary>

fichiersxaml utilisateur (app.xaml & winform.xaml):

Code:

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<!--Fichier App.xaml-->
    <Application x:Class="WpfTestThemes2.App"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             StartupUri="Window1.xaml">
    <!--rajouter  au biveau  application(ou window ) cette ref..à generic.xaml...-->
    <!--pour voir les styles dans la fenetre Proprietes-->
    <Application.Resources>
        <ResourceDictionary  Source="/WpfMyControlLib;component/Themes/Generic.xaml"/>
    </Application.Resources>
</Application>
 
 
<!--Fichier Window.xaml-->
<Window x:Class="WpfTestThemes2.Window1"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:mylib="clr-namespace:WpfMyControlLib;assembly=WpfMyControlLib"
        Title="Window1" Height="300" Width="300"     >
    <StackPanel>
        <mylib:CustomButton Content="ButtonDefaultStyle"></mylib:CustomButton>
        <mylib:CustomButton
            Content="ButtonCornsilk"
            Style="{StaticResource StyleBrushCornsilk}"></mylib:CustomButton>
        <mylib:CustomButton 
             Content="ButtonRed"
            Style="{StaticResource StyleBrushRed}"></mylib:CustomButton>
    </StackPanel>
</Window>

bon code...............