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J'ai un Usercontrol: SnazzyForm, qui en plus de deux bordures et une zone d'en-tête et autres joyeusetés, a aussi un Content Presenter qui sous .NET Framework 3.5 a présenté le contenu dans d'autres formulaires qui ont utilisé le contrôle .Comment puis-je définir ContentPropertyAttribute dans un présentateur de contenu?
Cependant, après avoir déplacé le projet à 4.0 je suis accueilli avec "Impossible d'ajouter du contenu à l'objet de type" blah blah blah.
Le behind pour le contrôle est donc:
Imports System
Imports System.IO
Imports System.Windows
Imports System.Windows.Controls
Imports System.Windows.Data
Imports System.Windows.Media
Imports System.Windows.Media.Animation
Imports System.ComponentModel
Public Class SnazzyForm
Inherits ContentControl
Public Shared TitleProperty As DependencyProperty = DependencyProperty.Register("Title", GetType(String), GetType(SnazzyForm))
<Description("Title to display"), _
Category("Custom")> _
Public Property Title() As String
Get
Return CType(GetValue(TitleProperty), String)
End Get
Set(ByVal value As String)
SetValue(TitleProperty, value)
End Set
End Property
Shared Sub New()
' Insert code required on object creation below this point.
DefaultStyleKeyProperty.OverrideMetadata(GetType(SnazzyForm), New FrameworkPropertyMetadata(GetType(SnazzyForm)))
End Sub
End Class
Le modèle dans le ResourceDictionary qui régit ce contrôle est donc:
<Style TargetType="{x:Type local:SnazzyForm}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type local:SnazzyForm}">
<ControlTemplate.Resources>
<Style TargetType="{x:Type Border}" x:Key="formOuterBorderStyle">
<Setter Property="Margin" Value="22,22,22,3" />
<Setter Property="Padding" Value="0" />
<Setter Property="BorderBrush" Value="{StaticResource BrushBorder}" />
<Setter Property="BorderThickness" Value="3" />
<Setter Property="Background" Value="{StaticResource BrushBackgroundDark}" />
<Setter Property="CornerRadius" Value="20,20,0,0" />
</Style>
<Style TargetType="{x:Type TextBlock}" x:Key="formTitleStyle">
<Setter Property="Foreground" Value="{StaticResource BrushWhiteSmoke}" />
<Setter Property="FontFamily" Value="Verdana" />
<Setter Property="FontSize" Value="16" />
<Setter Property="Padding" Value="11,7,7,7" />
<Setter Property="VerticalAlignment" Value="Stretch" />
<Setter Property="HorizontalAlignment" Value="Stretch" />
</Style>
<Style TargetType="{x:Type TextBlock}" x:Key="formBreadcrumbStyle">
<Setter Property="Foreground" Value="{StaticResource BrushWhiteSmoke}" />
<Setter Property="FontFamily" Value="Verdana" />
<Setter Property="FontSize" Value="11" />
<Setter Property="Padding" Value="7" />
<Setter Property="VerticalAlignment" Value="Stretch" />
<Setter Property="HorizontalAlignment" Value="Stretch" />
</Style>
<Style TargetType="{x:Type Rectangle}" x:Key="formBackgroundRectangleStyle">
<Setter Property="Fill" Value="{StaticResource BrushABCLight}" />
</Style>
<Style TargetType="{x:Type Border}" x:Key="formTitleBorderStyle">
<Setter Property="BorderBrush" Value="{StaticResource BrushBlack}" />
<Setter Property="BorderThickness" Value="0,0,0,2" />
</Style>
</ControlTemplate.Resources>
<AdornerDecorator d:DesignWidth="640" d:DesignHeight="480">
<Grid Width="Auto" Height="Auto">
<Grid.RowDefinitions>
<RowDefinition Height="40"/>
<RowDefinition Height="40"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="40"/>
</Grid.ColumnDefinitions>
<TextBlock HorizontalAlignment="Left" Margin="0" VerticalAlignment="Top" FontFamily="Arial" FontSize="18.667" Foreground="#FFE0E0E0" Text="{TemplateBinding Title}" TextWrapping="Wrap" Panel.ZIndex="2" Visibility="Collapsed"/>
<Path Fill="Black" Stretch="Fill" Stroke="{x:Null}" Margin="0" VerticalAlignment="Stretch" Height="Auto" Grid.Column="1" Grid.Row="0" Data="M0.5,0.5 L39.5,39.5 0.5,39.5 z"/>
<Border Background="Black" Margin="0" VerticalAlignment="Stretch" Height="Auto" Grid.Row="0" CornerRadius="10,0,0,0"/>
<!-- <Rectangle Fill="Black" Stroke="Black" Margin="0" VerticalAlignment="Stretch" Height="Auto" Grid.Row="0"/> -->
<Rectangle Stroke="{x:Null}" Margin="0" Height="Auto" Opacity="0.5" Grid.ColumnSpan="2" Grid.Row="3" Grid.RowSpan="1">
<Rectangle.Fill>
<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="#FF222222" Offset="0"/>
<GradientStop Color="#FFB3B3B3" Offset="1"/>
</LinearGradientBrush>
</Rectangle.Fill>
</Rectangle>
<Rectangle Fill="Black" Stroke="Black" Margin="0" Grid.ColumnSpan="2" Grid.Row="1"/>
<Rectangle Fill="{TemplateBinding Background}" Stroke="Black" Margin="0" Height="Auto" Panel.ZIndex="-7" Grid.ColumnSpan="2" Grid.Row="2" Grid.RowSpan="1"/>
<Border x:Name="bdr" Style="{StaticResource formOuterBorderStyle}" Margin="0" Grid.ColumnSpan="2" Grid.RowSpan="3" d:LayoutOverrides="Width, Height" d:IsHidden="True" Visibility="Collapsed"/>
<Grid Margin="3" Grid.ColumnSpan="2" Grid.RowSpan="3">
<Grid.RowDefinitions>
<RowDefinition Height="Auto" MinHeight="77" />
<RowDefinition MinHeight="400" />
</Grid.RowDefinitions>
<Border Style="{StaticResource formTitleBorderStyle}" BorderBrush="{x:Null}">
<StackPanel Margin="0">
<TextBlock Text="{Binding ViewModelFriendlyName}" Style="{StaticResource formTitleStyle}" />
<TextBlock Margin="11,0,0,0" Text="{Binding BreadcrumbTrail}" Style="{StaticResource formBreadcrumbStyle}" />
</StackPanel>
</Border>
<Rectangle Grid.Row="1" Style="{StaticResource formBackgroundRectangleStyle}" Visibility="Collapsed" />
<!--Put the form below here-->
<ContentPresenter x:Name="ContentPresenterX" Grid.Row="1" Margin="0" />
<!--Put the form above here-->
</Grid>
</Grid>
</AdornerDecorator>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
Je suppose que je veux juste savoir pourquoi j'ai maintenant dire au contrôle d'utiliser le contentpresenter pour présenter le contenu, alors qu'auparavant il savait ce que je voulais, et aussi comment je le fais.
Des pensées?
Cory